41 lines
1.7 KiB
Matlab
41 lines
1.7 KiB
Matlab
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function [array1gaincal,array2gaincal] = helperPlotElementGainCalibration(sub1meanamp,sub1gaincal,sub2meanamp,sub2gaincal)
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% Calculate and visualize the element-wise amplitude calibration for
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% both subarrays.
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sub1meanamp = mag2db(sub1meanamp);
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sub1gaincal = mag2db(sub1gaincal);
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sub2meanamp = mag2db(sub2meanamp);
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sub2gaincal = mag2db(sub2gaincal);
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% Setup figure
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figure; tiledlayout(1,2); a = nexttile();
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% Calculate and plot the gain calibration for subarray 1
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array1gaincal = helperElementSubarrayGainCalibration(a,'Subarray 1',sub1meanamp, sub1gaincal); a = nexttile();
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% Calculate and plot the gain calibration for subarray 2
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array2gaincal = helperElementSubarrayGainCalibration(a, 'Subarray 2', sub2meanamp, sub2gaincal);
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end
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function arraygaincal = helperElementSubarrayGainCalibration(ax,name,amplitudes,arraygaincal)
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% Calculate and visualize the element-wise amplitude calibration for
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% one subarray.
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hold(ax,"on");
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% Normalize amplitude for each element in the array
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dbNormAmplitudes = amplitudes - max(amplitudes);
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% Plot normalized amplitudes and gain adjustments
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b = bar(ax,[dbNormAmplitudes',arraygaincal'],'stacked');
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b(1).DisplayName = "Initial Normalized Amplitude";
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b(2).DisplayName = "Gain Adjustment";
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% Plot a line showing the final amplitude of all elements
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plot(ax,[0,5],[min(dbNormAmplitudes),min(dbNormAmplitudes)],"DisplayName","Final Element Amplitude","LineWidth",2,"Color","k")
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xlabel('Antenna Element')
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ylabel('dB');
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title([name ' - Gain Calibration'])
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legend('Location','southoutside')
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end
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