new extension: total-field/scattered-field excitation
See new matlab tutorial: RCS_Sphere.m Signed-off-by: Thorsten Liebig <Thorsten.Liebig@gmx.de>pull/1/head
Thorsten Liebig
parent
ad90817a50
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be8a3fbc51
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/*
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* Copyright (C) 2012 Thorsten Liebig (Thorsten.Liebig@gmx.de)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "engine_ext_tfsf.h"
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#include "operator_ext_tfsf.h"
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#include "FDTD/engine_sse.h"
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Engine_Ext_TFSF::Engine_Ext_TFSF(Operator_Ext_TFST* op_ext) : Engine_Extension(op_ext)
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{
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m_Op_TFSF = op_ext;
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m_Priority = ENG_EXT_PRIO_TFSF;
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m_DelayLookup = new unsigned int[m_Op_TFSF->m_maxDelay+1];
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}
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Engine_Ext_TFSF::~Engine_Ext_TFSF()
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{
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delete[] m_DelayLookup;
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m_DelayLookup = NULL;
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}
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void Engine_Ext_TFSF::DoPostVoltageUpdates()
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{
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unsigned int numTS = m_Eng->GetNumberOfTimesteps();
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unsigned int length = m_Op_TFSF->m_Exc->GetLength();
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for (unsigned int n=0;n<=m_Op_TFSF->m_maxDelay;++n)
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{
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if ( numTS < n )
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m_DelayLookup[n]=0;
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else if ( numTS-n > length)
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m_DelayLookup[n]=0;
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else
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m_DelayLookup[n] = numTS - n;
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}
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//get the current signal since an H-field is added ...
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FDTD_FLOAT* signal = m_Op_TFSF->m_Exc->GetCurrentSignal();
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int nP,nPP;
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unsigned int ui_pos;
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unsigned int pos[3];
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for (int n=0;n<3;++n)
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{
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nP = (n+1)%3;
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nPP = (n+2)%3;
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pos[nP] = m_Op_TFSF->m_Start[nP];
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ui_pos = 0;
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for (unsigned int i=0;i<m_Op_TFSF->m_numLines[nP];++i)
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{
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pos[nPP] = m_Op_TFSF->m_Start[nPP];
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for (unsigned int j=0;j<m_Op_TFSF->m_numLines[nPP];++j)
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{
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// current updates
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pos[n] = m_Op_TFSF->m_Start[n];
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m_Eng->SetVolt(nP,pos, m_Eng->GetVolt(nP,pos)
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+ (1.0-m_Op_TFSF->m_VoltDelayDelta[n][0][0][ui_pos])*m_Op_TFSF->m_VoltAmp[n][0][0][ui_pos]*signal[m_DelayLookup[ m_Op_TFSF->m_VoltDelay[n][0][0][ui_pos]]]
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+ m_Op_TFSF->m_VoltDelayDelta[n][0][0][ui_pos] *m_Op_TFSF->m_VoltAmp[n][0][0][ui_pos]*signal[m_DelayLookup[1+m_Op_TFSF->m_VoltDelay[n][0][0][ui_pos]]] );
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m_Eng->SetVolt(nPP,pos, m_Eng->GetVolt(nPP,pos)
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+ (1.0-m_Op_TFSF->m_VoltDelayDelta[n][0][1][ui_pos])*m_Op_TFSF->m_VoltAmp[n][0][1][ui_pos]*signal[m_DelayLookup[ m_Op_TFSF->m_VoltDelay[n][0][1][ui_pos]]]
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+ m_Op_TFSF->m_VoltDelayDelta[n][0][1][ui_pos] *m_Op_TFSF->m_VoltAmp[n][0][1][ui_pos]*signal[m_DelayLookup[1+m_Op_TFSF->m_VoltDelay[n][0][1][ui_pos]]] );
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pos[n] = m_Op_TFSF->m_Stop[n];
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m_Eng->SetVolt(nP,pos, m_Eng->GetVolt(nP,pos)
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+ (1.0-m_Op_TFSF->m_VoltDelayDelta[n][1][0][ui_pos])*m_Op_TFSF->m_VoltAmp[n][1][0][ui_pos]*signal[m_DelayLookup[ m_Op_TFSF->m_VoltDelay[n][1][0][ui_pos]]]
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+ m_Op_TFSF->m_VoltDelayDelta[n][1][0][ui_pos] *m_Op_TFSF->m_VoltAmp[n][1][0][ui_pos]*signal[m_DelayLookup[1+m_Op_TFSF->m_VoltDelay[n][1][0][ui_pos]]] );
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m_Eng->SetVolt(nPP,pos, m_Eng->GetVolt(nPP,pos)
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+ (1.0-m_Op_TFSF->m_VoltDelayDelta[n][1][1][ui_pos])*m_Op_TFSF->m_VoltAmp[n][1][1][ui_pos]*signal[m_DelayLookup[ m_Op_TFSF->m_VoltDelay[n][1][1][ui_pos]]]
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+ m_Op_TFSF->m_VoltDelayDelta[n][1][1][ui_pos] *m_Op_TFSF->m_VoltAmp[n][1][1][ui_pos]*signal[m_DelayLookup[1+m_Op_TFSF->m_VoltDelay[n][1][1][ui_pos]]] );
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++pos[nPP];
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++ui_pos;
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}
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++pos[nP];
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}
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}
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}
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void Engine_Ext_TFSF::DoPostCurrentUpdates()
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{
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unsigned int numTS = m_Eng->GetNumberOfTimesteps();
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unsigned int length = m_Op_TFSF->m_Exc->GetLength();
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for (unsigned int n=0;n<m_Op_TFSF->m_maxDelay;++n)
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{
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if ( numTS < n )
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m_DelayLookup[n]=0;
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else if ( numTS-n > length)
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m_DelayLookup[n]=0;
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else
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m_DelayLookup[n] = numTS - n;
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}
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//get the current signal since an E-field is added ...
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FDTD_FLOAT* signal = m_Op_TFSF->m_Exc->GetVoltageSignal();
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int nP,nPP;
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unsigned int ui_pos;
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unsigned int pos[3];
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for (int n=0;n<3;++n)
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{
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nP = (n+1)%3;
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nPP = (n+2)%3;
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pos[nP] = m_Op_TFSF->m_Start[nP];
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ui_pos = 0;
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for (unsigned int i=0;i<m_Op_TFSF->m_numLines[nP];++i)
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{
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pos[nPP] = m_Op_TFSF->m_Start[nPP];
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for (unsigned int j=0;j<m_Op_TFSF->m_numLines[nPP];++j)
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{
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// current updates
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pos[n] = m_Op_TFSF->m_Start[n]-1;
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m_Eng->SetCurr(nP,pos, m_Eng->GetCurr(nP,pos)
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+ (1.0-m_Op_TFSF->m_CurrDelayDelta[n][0][0][ui_pos])*m_Op_TFSF->m_CurrAmp[n][0][0][ui_pos]*signal[m_DelayLookup[ m_Op_TFSF->m_CurrDelay[n][0][0][ui_pos]]]
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+ m_Op_TFSF->m_CurrDelayDelta[n][0][0][ui_pos] *m_Op_TFSF->m_CurrAmp[n][0][0][ui_pos]*signal[m_DelayLookup[1+m_Op_TFSF->m_CurrDelay[n][0][0][ui_pos]]] );
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m_Eng->SetCurr(nPP,pos, m_Eng->GetCurr(nPP,pos)
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+ (1.0-m_Op_TFSF->m_CurrDelayDelta[n][0][1][ui_pos])*m_Op_TFSF->m_CurrAmp[n][0][1][ui_pos]*signal[m_DelayLookup[ m_Op_TFSF->m_CurrDelay[n][0][1][ui_pos]]]
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+ m_Op_TFSF->m_CurrDelayDelta[n][0][1][ui_pos] *m_Op_TFSF->m_CurrAmp[n][0][1][ui_pos]*signal[m_DelayLookup[1+m_Op_TFSF->m_CurrDelay[n][0][1][ui_pos]]] );
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pos[n] = m_Op_TFSF->m_Stop[n];
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m_Eng->SetCurr(nP,pos, m_Eng->GetCurr(nP,pos)
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+ (1.0-m_Op_TFSF->m_CurrDelayDelta[n][1][0][ui_pos])*m_Op_TFSF->m_CurrAmp[n][1][0][ui_pos]*signal[m_DelayLookup[ m_Op_TFSF->m_CurrDelay[n][1][0][ui_pos]]]
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+ m_Op_TFSF->m_CurrDelayDelta[n][1][0][ui_pos] *m_Op_TFSF->m_CurrAmp[n][1][0][ui_pos]*signal[m_DelayLookup[1+m_Op_TFSF->m_CurrDelay[n][1][0][ui_pos]]] );
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m_Eng->SetCurr(nPP,pos, m_Eng->GetCurr(nPP,pos)
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+ (1.0-m_Op_TFSF->m_CurrDelayDelta[n][1][1][ui_pos])*m_Op_TFSF->m_CurrAmp[n][1][1][ui_pos]*signal[m_DelayLookup[ m_Op_TFSF->m_CurrDelay[n][1][1][ui_pos]]]
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+ m_Op_TFSF->m_CurrDelayDelta[n][1][1][ui_pos] *m_Op_TFSF->m_CurrAmp[n][1][1][ui_pos]*signal[m_DelayLookup[1+m_Op_TFSF->m_CurrDelay[n][1][1][ui_pos]]] );
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++pos[nPP];
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++ui_pos;
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}
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++pos[nP];
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}
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}
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}
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@ -0,0 +1,40 @@
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/*
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* Copyright (C) 2012 Thorsten Liebig (Thorsten.Liebig@gmx.de)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef ENGINE_EXT_TFSF_H
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#define ENGINE_EXT_TFSF_H
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#include "engine_extension.h"
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class Operator_Ext_TFST;
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class Engine_Ext_TFSF : public Engine_Extension
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{
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public:
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Engine_Ext_TFSF(Operator_Ext_TFST* op_ext);
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virtual ~Engine_Ext_TFSF();
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virtual void DoPostVoltageUpdates();
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virtual void DoPostCurrentUpdates();
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protected:
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Operator_Ext_TFST* m_Op_TFSF;
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unsigned int* m_DelayLookup;
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};
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#endif // ENGINE_EXT_TFSF_H
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@ -23,6 +23,7 @@
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// priority definitions for some important extensions
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// priority definitions for some important extensions
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#define ENG_EXT_PRIO_UPML +1e6 //unaxial pml extension priority
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#define ENG_EXT_PRIO_UPML +1e6 //unaxial pml extension priority
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#define ENG_EXT_PRIO_CYLINDER +1e5 //cylindrial extension priority
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#define ENG_EXT_PRIO_CYLINDER +1e5 //cylindrial extension priority
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#define ENG_EXT_PRIO_TFSF +5e4 //total-field/scattered-field extension priority
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#define ENG_EXT_PRIO_EXCITATION -1000 //excitation priority
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#define ENG_EXT_PRIO_EXCITATION -1000 //excitation priority
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#define ENG_EXT_PRIO_CYLINDERMULTIGRID -3000 //cylindrial multi-grid extension priority
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#define ENG_EXT_PRIO_CYLINDERMULTIGRID -3000 //cylindrial multi-grid extension priority
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@ -0,0 +1,381 @@
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/*
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* Copyright (C) 2012 Thorsten Liebig (Thorsten.Liebig@gmx.de)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "operator_ext_tfsf.h"
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#include "engine_ext_tfsf.h"
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#include <cmath>
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Operator_Ext_TFST::Operator_Ext_TFST(Operator* op) : Operator_Extension(op)
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{
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Init();
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}
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Operator_Ext_TFST::~Operator_Ext_TFST()
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{
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Reset();
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}
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void Operator_Ext_TFST::Init()
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{
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for (int n=0;n<3;++n)
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for (int l=0;l<2;++l)
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for (int c=0;c<2;++c)
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{
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m_VoltDelay[n][l][c]=NULL;
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m_VoltDelayDelta[n][l][c]=NULL;
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m_VoltAmp[n][l][c]=NULL;
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m_CurrDelay[n][l][c]=NULL;
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m_CurrDelayDelta[n][l][c]=NULL;
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m_CurrAmp[n][l][c]=NULL;
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}
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Operator_Extension::Init();
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}
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void Operator_Ext_TFST::Reset()
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{
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for (int n=0;n<3;++n)
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for (int l=0;l<2;++l)
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for (int c=0;c<2;++c)
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{
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delete[] m_VoltDelay[n][l][c];
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m_VoltDelay[n][l][c]=NULL;
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delete[] m_VoltDelayDelta[n][l][c];
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m_VoltDelayDelta[n][l][c]=NULL;
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delete[] m_VoltAmp[n][l][c];
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m_VoltAmp[n][l][c]=NULL;
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delete[] m_CurrDelay[n][l][c];
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m_CurrDelay[n][l][c]=NULL;
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delete[] m_CurrDelayDelta[n][l][c];
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m_CurrDelayDelta[n][l][c]=NULL;
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delete[] m_CurrAmp[n][l][c];
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m_CurrAmp[n][l][c]=NULL;
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}
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Operator_Extension::Reset();
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}
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Operator_Extension* Operator_Ext_TFST::Clone(Operator* op)
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{
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UNUSED(op);
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return NULL;
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}
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bool Operator_Ext_TFST::BuildExtension()
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{
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m_Exc = m_Op->GetExcitationSignal();
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double dT = m_Op->GetTimestep();
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if (dT==0)
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return false;
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if (m_Exc==0)
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return false;
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Reset();
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ContinuousStructure* CSX = m_Op->GetGeometryCSX();
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vector<CSProperties*> vec_prop = CSX->GetPropertyByType(CSProperties::EXCITATION);
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if (vec_prop.size()==0)
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{
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cerr << "Operator_Ext_TFST::BuildExtension: Warning, no excitation properties found" << endl;
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SetActive(false);
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return false;
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}
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CSPropExcitation* elec=NULL;
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CSProperties* prop=NULL;
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CSPrimitives* prim=NULL;
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CSPrimBox* box=NULL;
|
||||||
|
for (size_t p=0; p<vec_prop.size(); ++p)
|
||||||
|
{
|
||||||
|
prop = vec_prop.at(p);
|
||||||
|
elec = prop->ToExcitation();
|
||||||
|
if (elec->GetExcitType()!=10)
|
||||||
|
continue;
|
||||||
|
if (prop->GetQtyPrimitives()!=1)
|
||||||
|
{
|
||||||
|
cerr << "Operator_Ext_TFST::BuildExtension: Warning, plane wave excitation found with more (or less) than one primitive, skipping..." << endl;
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
prim = prop->GetPrimitive(0);
|
||||||
|
if (prim->GetType()!=CSPrimitives::BOX)
|
||||||
|
{
|
||||||
|
cerr << "Operator_Ext_TFST::BuildExtension: Warning, plane wave excitation found with false non-Box primitive, skipping..." << endl;
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
box = prim->ToBox();
|
||||||
|
if (box==NULL) //sanity check, should not happen!
|
||||||
|
{
|
||||||
|
SetActive(false);
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
// found a plane-wave excite with exactly one box
|
||||||
|
for (int n=0;n<3;++n)
|
||||||
|
m_PropDir[n] = elec->GetPropagationDir(n);
|
||||||
|
double dir_norm = sqrt(m_PropDir[0]*m_PropDir[0]+m_PropDir[1]*m_PropDir[1]+m_PropDir[2]*m_PropDir[2]);
|
||||||
|
if (dir_norm==0)
|
||||||
|
{
|
||||||
|
cerr << "Operator_Ext_TFST::BuildExtension: Warning, plane wave direction is zero, skipping..." << endl;
|
||||||
|
SetActive(false);
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
//make it a unit vector
|
||||||
|
m_PropDir[0]/=dir_norm;m_PropDir[1]/=dir_norm;m_PropDir[2]/=dir_norm;
|
||||||
|
|
||||||
|
if (m_Op->SnapBox2Mesh(box->GetStartCoord()->GetNativeCoords(), box->GetStopCoord()->GetNativeCoords(), m_Start, m_Stop)!=3)
|
||||||
|
{
|
||||||
|
cerr << "Operator_Ext_TFST::BuildExtension: Warning, plane wave box dimension is invalid, skipping..." << endl;
|
||||||
|
SetActive(false);
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
double origin[3];
|
||||||
|
unsigned int ui_origin[3];
|
||||||
|
for (int n=0;n<3;++n)
|
||||||
|
{
|
||||||
|
m_E_Amp[n] = elec->GetExcitation(n);
|
||||||
|
m_numLines[n] = m_Stop[n]-m_Start[n]+1;
|
||||||
|
m_IncLow[n] = m_PropDir[n]>=0;
|
||||||
|
|
||||||
|
if (m_IncLow[n])
|
||||||
|
{
|
||||||
|
ui_origin[n] = m_Start[n];
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
ui_origin[n] = m_Stop[n];
|
||||||
|
}
|
||||||
|
origin[n] = m_Op->GetDiscLine(n,ui_origin[n]);
|
||||||
|
}
|
||||||
|
|
||||||
|
double dotEk = (m_E_Amp[0]*m_PropDir[0] + m_E_Amp[1]*m_PropDir[1] + m_E_Amp[2]*m_PropDir[2]);
|
||||||
|
double angle = acos( dotEk / (m_E_Amp[0]*m_E_Amp[0] + m_E_Amp[1]*m_E_Amp[1] + m_E_Amp[2]*m_E_Amp[2]) ) / PI * 180;
|
||||||
|
|
||||||
|
if (angle==0)
|
||||||
|
{
|
||||||
|
cerr << "Operator_Ext_TFST::BuildExtension: Warning, plane wave direction and polarization is identical, skipping..." << endl;
|
||||||
|
SetActive(false);
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
if (angle!=90)
|
||||||
|
{
|
||||||
|
cerr << "Operator_Ext_TFST::BuildExtension: Warning, angle between propagation direction and polarization is not 90deg, resetting E-polarization to : (";
|
||||||
|
for (int n=0;n<3;++n)
|
||||||
|
m_E_Amp[n]-=m_PropDir[n]*dotEk;
|
||||||
|
cerr << m_E_Amp[0] << "," << m_E_Amp[1] << "," << m_E_Amp[2] << ")" << endl;
|
||||||
|
}
|
||||||
|
|
||||||
|
int nP,nPP;
|
||||||
|
for (int n=0;n<3;++n)
|
||||||
|
{
|
||||||
|
nP = (n+1)%3;
|
||||||
|
nPP = (n+2)%3;
|
||||||
|
m_H_Amp[n] = m_PropDir[nP]*m_E_Amp[nPP] - m_PropDir[nPP]*m_E_Amp[nP];
|
||||||
|
m_H_Amp[n] /= __Z0__;
|
||||||
|
}
|
||||||
|
|
||||||
|
double coord[3];
|
||||||
|
double unit = m_Op->GetGridDelta();
|
||||||
|
double delay;
|
||||||
|
double dist;
|
||||||
|
unsigned int pos[3];
|
||||||
|
unsigned int numP, ui_pos;
|
||||||
|
m_maxDelay = 0;
|
||||||
|
for (int n=0;n<3;++n)
|
||||||
|
{
|
||||||
|
nP = (n+1)%3;
|
||||||
|
nPP = (n+2)%3;
|
||||||
|
pos[n] = 0; //unused
|
||||||
|
pos[nP] = m_Start[nP];
|
||||||
|
|
||||||
|
numP = m_numLines[nP]*m_numLines[nPP];
|
||||||
|
|
||||||
|
for (int l=0;l<2;++l)
|
||||||
|
for (int c=0;c<2;++c)
|
||||||
|
{
|
||||||
|
m_VoltDelay[n][l][c]=new unsigned int[numP];
|
||||||
|
m_VoltDelayDelta[n][l][c]=new FDTD_FLOAT[numP];
|
||||||
|
m_VoltAmp[n][l][c]=new FDTD_FLOAT[numP];
|
||||||
|
|
||||||
|
m_CurrDelay[n][l][c]=new unsigned int[numP];
|
||||||
|
m_CurrDelayDelta[n][l][c]=new FDTD_FLOAT[numP];
|
||||||
|
m_CurrAmp[n][l][c]=new FDTD_FLOAT[numP];
|
||||||
|
}
|
||||||
|
|
||||||
|
ui_pos = 0;
|
||||||
|
for (unsigned int i=0;i<m_numLines[nP];++i)
|
||||||
|
{
|
||||||
|
pos[nPP] = m_Start[nPP];
|
||||||
|
for (unsigned int j=0;j<m_numLines[nPP];++j)
|
||||||
|
{
|
||||||
|
// current updates
|
||||||
|
pos[n] = m_Start[n];
|
||||||
|
m_Op->GetYeeCoords(nP,pos,coord,false);
|
||||||
|
dist = fabs(coord[0]-origin[0])*m_PropDir[0]+fabs(coord[1]-origin[1])*m_PropDir[1]+fabs(coord[2]-origin[2])*m_PropDir[2];
|
||||||
|
delay = dist*unit/__C0__/dT;
|
||||||
|
m_maxDelay = max((unsigned int)delay,m_maxDelay);
|
||||||
|
m_CurrDelay[n][0][1][ui_pos] = floor(delay);
|
||||||
|
m_CurrDelayDelta[n][0][1][ui_pos] = delay - floor(delay);
|
||||||
|
m_CurrAmp[n][0][1][ui_pos] = m_E_Amp[nP]*m_Op->GetEdgeLength(nP,pos);
|
||||||
|
|
||||||
|
m_Op->GetYeeCoords(nPP,pos,coord,false);
|
||||||
|
dist = fabs(coord[0]-origin[0])*m_PropDir[0]+fabs(coord[1]-origin[1])*m_PropDir[1]+fabs(coord[2]-origin[2])*m_PropDir[2];
|
||||||
|
delay = dist*unit/__C0__/dT;
|
||||||
|
m_maxDelay = max((unsigned int)delay,m_maxDelay);
|
||||||
|
m_CurrDelay[n][0][0][ui_pos] = floor(delay);
|
||||||
|
m_CurrDelayDelta[n][0][0][ui_pos] = delay - floor(delay);
|
||||||
|
m_CurrAmp[n][0][0][ui_pos] = m_E_Amp[nPP]*m_Op->GetEdgeLength(nPP,pos);
|
||||||
|
|
||||||
|
--pos[n];
|
||||||
|
m_CurrAmp[n][0][0][ui_pos]*=m_Op->GetIV(nP,pos);
|
||||||
|
m_CurrAmp[n][0][1][ui_pos]*=m_Op->GetIV(nPP,pos);
|
||||||
|
|
||||||
|
pos[n] = m_Stop[n];
|
||||||
|
m_Op->GetYeeCoords(nP,pos,coord,false);
|
||||||
|
dist = fabs(coord[0]-origin[0])*m_PropDir[0]+fabs(coord[1]-origin[1])*m_PropDir[1]+fabs(coord[2]-origin[2])*m_PropDir[2];
|
||||||
|
delay = dist*unit/__C0__/dT;
|
||||||
|
m_maxDelay = max((unsigned int)delay,m_maxDelay);
|
||||||
|
m_CurrDelay[n][1][1][ui_pos] = floor(delay);
|
||||||
|
m_CurrDelayDelta[n][1][1][ui_pos] = delay - floor(delay);
|
||||||
|
m_CurrAmp[n][1][1][ui_pos] = m_E_Amp[nP]*m_Op->GetEdgeLength(nP,pos);
|
||||||
|
|
||||||
|
m_Op->GetYeeCoords(nPP,pos,coord,false);
|
||||||
|
dist = fabs(coord[0]-origin[0])*m_PropDir[0]+fabs(coord[1]-origin[1])*m_PropDir[1]+fabs(coord[2]-origin[2])*m_PropDir[2];
|
||||||
|
delay = dist*unit/__C0__/dT;
|
||||||
|
m_maxDelay = max((unsigned int)delay,m_maxDelay);
|
||||||
|
m_CurrDelay[n][1][0][ui_pos] = floor(delay);
|
||||||
|
m_CurrDelayDelta[n][1][0][ui_pos] = delay - floor(delay);
|
||||||
|
m_CurrAmp[n][1][0][ui_pos] = m_E_Amp[nPP]*m_Op->GetEdgeLength(nPP,pos);
|
||||||
|
|
||||||
|
m_CurrAmp[n][1][0][ui_pos]*=m_Op->GetIV(nP,pos);
|
||||||
|
m_CurrAmp[n][1][1][ui_pos]*=m_Op->GetIV(nPP,pos);
|
||||||
|
|
||||||
|
if (m_IncLow[n])
|
||||||
|
{
|
||||||
|
m_CurrAmp[n][0][0][ui_pos]*=-1;
|
||||||
|
m_CurrAmp[n][1][1][ui_pos]*=-1;
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
m_CurrAmp[n][0][1][ui_pos]*=-1;
|
||||||
|
m_CurrAmp[n][1][0][ui_pos]*=-1;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (pos[nP]==m_Stop[nP])
|
||||||
|
{
|
||||||
|
m_CurrAmp[n][0][1][ui_pos]=0;
|
||||||
|
m_CurrAmp[n][1][1][ui_pos]=0;
|
||||||
|
}
|
||||||
|
if (pos[nPP]==m_Stop[nPP])
|
||||||
|
{
|
||||||
|
m_CurrAmp[n][0][0][ui_pos]=0;
|
||||||
|
m_CurrAmp[n][1][0][ui_pos]=0;
|
||||||
|
}
|
||||||
|
|
||||||
|
// voltage updates
|
||||||
|
pos[n] = m_Start[n]-1;
|
||||||
|
m_Op->GetYeeCoords(nP,pos,coord,true);
|
||||||
|
dist = fabs(coord[0]-origin[0])*m_PropDir[0]+fabs(coord[1]-origin[1])*m_PropDir[1]+fabs(coord[2]-origin[2])*m_PropDir[2];
|
||||||
|
delay = dist*unit/__C0__/dT;
|
||||||
|
m_maxDelay = max((unsigned int)delay,m_maxDelay);
|
||||||
|
m_VoltDelay[n][0][1][ui_pos] = floor(delay);
|
||||||
|
m_VoltDelayDelta[n][0][1][ui_pos] = delay - floor(delay);
|
||||||
|
m_VoltAmp[n][0][1][ui_pos] = m_H_Amp[nP]*m_Op->GetEdgeLength(nP,pos,true);
|
||||||
|
|
||||||
|
m_Op->GetYeeCoords(nPP,pos,coord,true);
|
||||||
|
dist = fabs(coord[0]-origin[0])*m_PropDir[0]+fabs(coord[1]-origin[1])*m_PropDir[1]+fabs(coord[2]-origin[2])*m_PropDir[2];
|
||||||
|
delay = dist*unit/__C0__/dT;
|
||||||
|
m_maxDelay = max((unsigned int)delay,m_maxDelay);
|
||||||
|
m_VoltDelay[n][0][0][ui_pos] = floor(delay);
|
||||||
|
m_VoltDelayDelta[n][0][0][ui_pos] = delay - floor(delay);
|
||||||
|
m_VoltAmp[n][0][0][ui_pos] = m_H_Amp[nPP]*m_Op->GetEdgeLength(nPP,pos,true);
|
||||||
|
|
||||||
|
++pos[n];
|
||||||
|
m_VoltAmp[n][0][0][ui_pos]*=m_Op->GetVI(nP,pos);
|
||||||
|
m_VoltAmp[n][0][1][ui_pos]*=m_Op->GetVI(nPP,pos);
|
||||||
|
|
||||||
|
pos[n] = m_Stop[n];
|
||||||
|
m_Op->GetYeeCoords(nP,pos,coord,true);
|
||||||
|
dist = fabs(coord[0]-origin[0])*m_PropDir[0]+fabs(coord[1]-origin[1])*m_PropDir[1]+fabs(coord[2]-origin[2])*m_PropDir[2];
|
||||||
|
delay = dist*unit/__C0__/dT;
|
||||||
|
m_maxDelay = max((unsigned int)delay,m_maxDelay);
|
||||||
|
m_VoltDelay[n][1][1][ui_pos] = floor(delay);
|
||||||
|
m_VoltDelayDelta[n][1][1][ui_pos] = delay - floor(delay);
|
||||||
|
m_VoltAmp[n][1][1][ui_pos] = m_H_Amp[nP]*m_Op->GetEdgeLength(nP,pos,true);
|
||||||
|
|
||||||
|
m_Op->GetYeeCoords(nPP,pos,coord,true);
|
||||||
|
dist = fabs(coord[0]-origin[0])*m_PropDir[0]+fabs(coord[1]-origin[1])*m_PropDir[1]+fabs(coord[2]-origin[2])*m_PropDir[2];
|
||||||
|
delay = dist*unit/__C0__/dT;
|
||||||
|
m_maxDelay = max((unsigned int)delay,m_maxDelay);
|
||||||
|
m_VoltDelay[n][1][0][ui_pos] = floor(delay);
|
||||||
|
m_VoltDelayDelta[n][1][0][ui_pos] = delay - floor(delay);
|
||||||
|
m_VoltAmp[n][1][0][ui_pos] = m_H_Amp[nPP]*m_Op->GetEdgeLength(nPP,pos,true);
|
||||||
|
|
||||||
|
m_VoltAmp[n][1][0][ui_pos]*=m_Op->GetVI(nP,pos);
|
||||||
|
m_VoltAmp[n][1][1][ui_pos]*=m_Op->GetVI(nPP,pos);
|
||||||
|
|
||||||
|
if (m_IncLow[n])
|
||||||
|
{
|
||||||
|
m_VoltAmp[n][1][0][ui_pos]*=-1;
|
||||||
|
m_VoltAmp[n][0][1][ui_pos]*=-1;
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
m_VoltAmp[n][0][0][ui_pos]*=-1;
|
||||||
|
m_VoltAmp[n][1][1][ui_pos]*=-1;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (pos[nP]==m_Stop[nP])
|
||||||
|
{
|
||||||
|
m_VoltAmp[n][0][0][ui_pos]=0;
|
||||||
|
m_VoltAmp[n][1][0][ui_pos]=0;
|
||||||
|
}
|
||||||
|
if (pos[nPP]==m_Stop[nPP])
|
||||||
|
{
|
||||||
|
m_VoltAmp[n][0][1][ui_pos]=0;
|
||||||
|
m_VoltAmp[n][1][1][ui_pos]=0;
|
||||||
|
}
|
||||||
|
|
||||||
|
++pos[nPP];
|
||||||
|
++ui_pos;
|
||||||
|
}
|
||||||
|
++pos[nP];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
++m_maxDelay;
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
SetActive(false);
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
Engine_Extension* Operator_Ext_TFST::CreateEngineExtention()
|
||||||
|
{
|
||||||
|
return new Engine_Ext_TFSF(this);
|
||||||
|
}
|
||||||
|
|
||||||
|
void Operator_Ext_TFST::ShowStat(ostream &ostr) const
|
||||||
|
{
|
||||||
|
Operator_Extension::ShowStat(ostr);
|
||||||
|
cout << "Propagation direction\t: " << "(" << m_PropDir[0] << ", " << m_PropDir[1] << ", " << m_PropDir[2] << ")" << endl;
|
||||||
|
cout << "E-field amplitude\t: " << "(" << m_E_Amp[0] << ", " << m_E_Amp[1] << ", " << m_E_Amp[2] << ")" << endl;
|
||||||
|
cout << "m_H_Amp amplitude\t: " << "(" << m_H_Amp[0]*__Z0__ << ", " << m_H_Amp[1]*__Z0__ << ", " << m_H_Amp[2]*__Z0__ << ")/Z0" << endl;
|
||||||
|
cout << "Box Dimensions\t\t: " << m_numLines[0] << " x " << m_numLines[1] << " x " << m_numLines[2] << endl;
|
||||||
|
cout << "Max. Delay (TS)\t\t: " << m_maxDelay << endl;
|
||||||
|
cout << "Memory usage (est.)\t: ~" << m_numLines[0] * m_numLines[1] * m_numLines[2] * 6 * 4 * 4 / 1024 << " kiB" << endl;
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,75 @@
|
||||||
|
/*
|
||||||
|
* Copyright (C) 2012 Thorsten Liebig (Thorsten.Liebig@gmx.de)
|
||||||
|
*
|
||||||
|
* This program is free software: you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation, either version 3 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef OPERATOR_EXT_TFSF_H
|
||||||
|
#define OPERATOR_EXT_TFSF_H
|
||||||
|
|
||||||
|
#include "operator_extension.h"
|
||||||
|
#include "FDTD/operator.h"
|
||||||
|
#include "tools/constants.h"
|
||||||
|
|
||||||
|
class Excitation;
|
||||||
|
|
||||||
|
class Operator_Ext_TFST : public Operator_Extension
|
||||||
|
{
|
||||||
|
friend class Engine_Ext_TFSF;
|
||||||
|
public:
|
||||||
|
Operator_Ext_TFST(Operator* op);
|
||||||
|
~Operator_Ext_TFST();
|
||||||
|
|
||||||
|
virtual Operator_Extension* Clone(Operator* op);
|
||||||
|
|
||||||
|
virtual bool BuildExtension();
|
||||||
|
|
||||||
|
virtual Engine_Extension* CreateEngineExtention();
|
||||||
|
|
||||||
|
virtual bool IsCylinderCoordsSave(bool closedAlpha, bool R0_included) const {UNUSED(closedAlpha); UNUSED(R0_included); return false;}
|
||||||
|
virtual bool IsCylindricalMultiGridSave(bool child) const {UNUSED(child); return false;}
|
||||||
|
|
||||||
|
virtual string GetExtensionName() const {return string("Total-Field/Scattered-Field Extension");}
|
||||||
|
|
||||||
|
virtual void ShowStat(ostream &ostr) const;
|
||||||
|
|
||||||
|
virtual void Init();
|
||||||
|
virtual void Reset();
|
||||||
|
|
||||||
|
protected:
|
||||||
|
Excitation* m_Exc;
|
||||||
|
|
||||||
|
bool m_IncLow[3];
|
||||||
|
unsigned int m_Start[3];
|
||||||
|
unsigned int m_Stop[3];
|
||||||
|
unsigned int m_numLines[3];
|
||||||
|
|
||||||
|
double m_PropDir[3];
|
||||||
|
double m_E_Amp[3];
|
||||||
|
double m_H_Amp[3];
|
||||||
|
|
||||||
|
unsigned int m_maxDelay;
|
||||||
|
|
||||||
|
// array setup [direction][low/high][component][ <mesh_position> ]
|
||||||
|
unsigned int* m_VoltDelay[3][2][2];
|
||||||
|
FDTD_FLOAT* m_VoltDelayDelta[3][2][2];
|
||||||
|
FDTD_FLOAT* m_VoltAmp[3][2][2];
|
||||||
|
|
||||||
|
unsigned int* m_CurrDelay[3][2][2];
|
||||||
|
FDTD_FLOAT* m_CurrDelayDelta[3][2][2];
|
||||||
|
FDTD_FLOAT* m_CurrAmp[3][2][2];
|
||||||
|
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif // OPERATOR_EXT_TFSF_H
|
||||||
|
|
@ -0,0 +1,89 @@
|
||||||
|
%
|
||||||
|
% Tutorials / radar cross section of a metal sphere
|
||||||
|
%
|
||||||
|
% This tutorial is unfinished!
|
||||||
|
%
|
||||||
|
% Describtion at:
|
||||||
|
% http://openems.de/index.php/Tutorial:_RCS_Sphere
|
||||||
|
%
|
||||||
|
% Tested with
|
||||||
|
% - Matlab 2011a / Octave 3.4.3
|
||||||
|
% - openEMS v0.0.29
|
||||||
|
%
|
||||||
|
% (C) 2012 Thorsten Liebig <thorsten.liebig@uni-due.de>
|
||||||
|
|
||||||
|
close all
|
||||||
|
clear
|
||||||
|
clc
|
||||||
|
|
||||||
|
%% setup the simulation
|
||||||
|
physical_constants;
|
||||||
|
unit = 1e-3; % all length in mm
|
||||||
|
|
||||||
|
sphere.rad = 160;
|
||||||
|
|
||||||
|
% size of the simulation box
|
||||||
|
SimBox = 1000;
|
||||||
|
PW_Box = 500;
|
||||||
|
|
||||||
|
%% setup FDTD parameter & excitation function
|
||||||
|
f_start = 200e6; % start frequency
|
||||||
|
f_stop = 1000e6; % stop frequency
|
||||||
|
|
||||||
|
FDTD = InitFDTD( 30000 );
|
||||||
|
FDTD = SetGaussExcite( FDTD, 0.5*(f_start+f_stop), 0.5*(f_stop-f_start) );
|
||||||
|
BC = [1 1 1 1 1 1]*3; % set boundary conditions
|
||||||
|
FDTD = SetBoundaryCond( FDTD, BC );
|
||||||
|
|
||||||
|
%% setup CSXCAD geometry & mesh
|
||||||
|
% currently, openEMS cannot automatically generate a mesh
|
||||||
|
max_res = c0 / f_stop / unit / 20; % cell size: lambda/20
|
||||||
|
CSX = InitCSX();
|
||||||
|
|
||||||
|
%create fixed lines for the simulation box, substrate and port
|
||||||
|
mesh.x = SmoothMeshLines([-SimBox/2 0 SimBox/2], max_res);
|
||||||
|
mesh.y = mesh.x;
|
||||||
|
mesh.z = mesh.x;
|
||||||
|
|
||||||
|
%% create metal sphere
|
||||||
|
CSX = AddMetal( CSX, 'sphere' ); % create a perfect electric conductor (PEC)
|
||||||
|
CSX = AddSphere(CSX,'sphere',10,[0 0 0],sphere.rad);
|
||||||
|
|
||||||
|
%% plane wave excitation
|
||||||
|
k_dir = [1 0 0]; % plane wave direction --> x-direction
|
||||||
|
E_dir = [0 0 1]; % plane wave polarization --> E_z
|
||||||
|
|
||||||
|
CSX = AddPlaneWaveExcite(CSX, 'plane_wave', k_dir, E_dir);
|
||||||
|
start = [-PW_Box/2 -PW_Box/2 -PW_Box/2];
|
||||||
|
stop = -start;
|
||||||
|
CSX = AddBox(CSX, 'plane_wave', 0, start, stop);
|
||||||
|
|
||||||
|
%% dump boxes
|
||||||
|
CSX = AddDump(CSX, 'Et');
|
||||||
|
start = [mesh.x(1) mesh.y(1) 0];
|
||||||
|
stop = [mesh.x(end) mesh.y(end) 0];
|
||||||
|
CSX = AddBox(CSX, 'Et', 0, start, stop);
|
||||||
|
|
||||||
|
% add 8 lines in all direction as pml spacing
|
||||||
|
mesh = AddPML(mesh,8);
|
||||||
|
|
||||||
|
CSX = DefineRectGrid( CSX, unit, mesh );
|
||||||
|
|
||||||
|
%% prepare simulation folder
|
||||||
|
Sim_Path = 'Sphere_RCS';
|
||||||
|
Sim_CSX = 'Sphere_RCS.xml';
|
||||||
|
|
||||||
|
[status, message, messageid] = rmdir( Sim_Path, 's' ); % clear previous directory
|
||||||
|
[status, message, messageid] = mkdir( Sim_Path ); % create empty simulation folder
|
||||||
|
|
||||||
|
%% write openEMS compatible xml-file
|
||||||
|
WriteOpenEMS( [Sim_Path '/' Sim_CSX], FDTD, CSX );
|
||||||
|
|
||||||
|
%% show the structure
|
||||||
|
CSXGeomPlot( [Sim_Path '/' Sim_CSX] );
|
||||||
|
|
||||||
|
%% run openEMS
|
||||||
|
RunOpenEMS( Sim_Path, Sim_CSX);
|
||||||
|
|
||||||
|
%%
|
||||||
|
disp('Use Paraview to display the elctric fields dumped by openEMS');
|
||||||
|
|
@ -123,7 +123,9 @@ SOURCES += FDTD/extensions/engine_extension.cpp \
|
||||||
FDTD/extensions/operator_ext_cylinder.cpp \
|
FDTD/extensions/operator_ext_cylinder.cpp \
|
||||||
FDTD/extensions/engine_ext_cylinder.cpp \
|
FDTD/extensions/engine_ext_cylinder.cpp \
|
||||||
FDTD/extensions/operator_ext_excitation.cpp \
|
FDTD/extensions/operator_ext_excitation.cpp \
|
||||||
FDTD/extensions/engine_ext_excitation.cpp
|
FDTD/extensions/engine_ext_excitation.cpp \
|
||||||
|
FDTD/extensions/operator_ext_tfsf.cpp \
|
||||||
|
FDTD/extensions/engine_ext_tfsf.cpp
|
||||||
|
|
||||||
# Common source files
|
# Common source files
|
||||||
SOURCES += Common/operator_base.cpp \
|
SOURCES += Common/operator_base.cpp \
|
||||||
|
|
@ -188,7 +190,9 @@ HEADERS += FDTD/extensions/operator_extension.h \
|
||||||
FDTD/extensions/operator_ext_upml.h \
|
FDTD/extensions/operator_ext_upml.h \
|
||||||
FDTD/extensions/engine_ext_upml.h \
|
FDTD/extensions/engine_ext_upml.h \
|
||||||
FDTD/extensions/operator_ext_excitation.h \
|
FDTD/extensions/operator_ext_excitation.h \
|
||||||
FDTD/extensions/engine_ext_excitation.h
|
FDTD/extensions/engine_ext_excitation.h \
|
||||||
|
FDTD/extensions/operator_ext_tfsf.h \
|
||||||
|
FDTD/extensions/engine_ext_tfsf.h
|
||||||
|
|
||||||
# Common header files
|
# Common header files
|
||||||
HEADERS += Common/operator_base.h \
|
HEADERS += Common/operator_base.h \
|
||||||
|
|
|
||||||
|
|
@ -24,6 +24,7 @@
|
||||||
#include "FDTD/engine_multithread.h"
|
#include "FDTD/engine_multithread.h"
|
||||||
#include "FDTD/operator_multithread.h"
|
#include "FDTD/operator_multithread.h"
|
||||||
#include "FDTD/extensions/operator_ext_excitation.h"
|
#include "FDTD/extensions/operator_ext_excitation.h"
|
||||||
|
#include "FDTD/extensions/operator_ext_tfsf.h"
|
||||||
#include "FDTD/extensions/operator_ext_mur_abc.h"
|
#include "FDTD/extensions/operator_ext_mur_abc.h"
|
||||||
#include "FDTD/extensions/operator_ext_pml_sf.h"
|
#include "FDTD/extensions/operator_ext_pml_sf.h"
|
||||||
#include "FDTD/extensions/operator_ext_upml.h"
|
#include "FDTD/extensions/operator_ext_upml.h"
|
||||||
|
|
@ -631,6 +632,7 @@ int openEMS::SetupFDTD(const char* file)
|
||||||
m_Exc = new Excitation();
|
m_Exc = new Excitation();
|
||||||
FDTD_Op->SetExcitationSignal(m_Exc);
|
FDTD_Op->SetExcitationSignal(m_Exc);
|
||||||
FDTD_Op->AddExtension(new Operator_Ext_Excitation(FDTD_Op));
|
FDTD_Op->AddExtension(new Operator_Ext_Excitation(FDTD_Op));
|
||||||
|
FDTD_Op->AddExtension(new Operator_Ext_TFST(FDTD_Op));
|
||||||
|
|
||||||
if (FDTD_Op->SetGeometryCSX(m_CSX)==false) return(2);
|
if (FDTD_Op->SetGeometryCSX(m_CSX)==false) return(2);
|
||||||
|
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue