97 lines
3.5 KiB
Matlab
97 lines
3.5 KiB
Matlab
classdef Optical_Demultiplex_test < IMDDTestCase
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methods (Test, TestTags = {'unit', 'fast', 'optical', 'demux'})
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function processReturnsOneCellPerChannelAndPreservesMetadata(testCase)
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fs = 32e9;
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lambdaCenterNm = 1310;
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lambdaA = 1309e-9;
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lambdaB = 1311e-9;
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sigA = makeOpticalSignal( ...
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[1 2; 1 2; 1 2; 1 2], ...
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fs, ...
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lambdaA, ...
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0.10);
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sigB = makeOpticalSignal( ...
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[3 4; 3 4; 3 4; 3 4], ...
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fs, ...
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lambdaB, ...
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0.90);
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mux = Optical_Multiplex( ...
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"fs_in", fs, ...
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"fs_out", fs, ...
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"lambda_center", lambdaCenterNm, ...
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"delta_f", 0, ...
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"random_key", 0, ...
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"attenuation", 0, ...
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"filtype", 3, ...
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"B", 200e9);
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muxOut = mux.process({sigA, sigB});
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demux = Optical_Demultiplex( ...
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"fs_in", muxOut.fs, ...
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"fs_out", muxOut.fs, ...
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"lambda_center", lambdaCenterNm, ...
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"attenuation", 0, ...
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"filtype", 3, ...
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"B", 200e9);
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out = demux.process(muxOut);
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testCase.verifyClass(out, 'cell');
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testCase.verifyNumElements(out, 2);
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testCase.verifyClass(out{1}, 'Opticalsignal');
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testCase.verifyClass(out{2}, 'Opticalsignal');
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testCase.verifyEqual(size(out{1}.signal), size(muxOut.signal));
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testCase.verifyEqual(size(out{2}.signal), size(muxOut.signal));
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testCase.verifyEqual(out{1}.fs, fs);
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testCase.verifyEqual(out{2}.fs, fs);
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testCase.verifyEqual(out{1}.lambda, muxOut.lambda(1), 'AbsTol', 1e-12);
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testCase.verifyEqual(out{2}.lambda, muxOut.lambda(2), 'AbsTol', 1e-12);
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end
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function roundTripThroughMuxAndDemuxPreservesChannelMagnitudes(testCase)
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fs = 16e9;
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lambdaCenterNm = 1310;
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sigA = makeOpticalSignal(ones(8, 2), fs, 1309.5e-9, 0.0);
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mux = Optical_Multiplex( ...
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"fs_in", fs, ...
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"fs_out", fs, ...
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"lambda_center", lambdaCenterNm, ...
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"delta_f", 0, ...
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"random_key", 0, ...
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"attenuation", 0, ...
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"filtype", 3, ...
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"B", 200e9);
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muxOut = mux.process({sigA});
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demux = Optical_Demultiplex( ...
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"fs_in", muxOut.fs, ...
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"fs_out", muxOut.fs, ...
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"lambda_center", lambdaCenterNm, ...
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"attenuation", 0, ...
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"filtype", 3, ...
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"B", 200e9);
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out = demux.process(muxOut);
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testCase.verifyNumElements(out, 1);
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testCase.verifyEqual(size(out{1}.signal), size(sigA.signal));
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testCase.verifyEqual(out{1}.fs, fs);
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testCase.verifyEqual(out{1}.lambda, muxOut.lambda(1), 'AbsTol', 1e-12);
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testCase.verifyEqual(mean(abs(out{1}.signal), 'all'), mean(abs(sigA.signal), 'all'), 'AbsTol', 1e-6);
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end
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end
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end
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function sig = makeOpticalSignal(signal, fs, lambda, polrot)
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base = Signal(signal, "fs", fs);
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sig = Opticalsignal( ...
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signal, ...
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"fs", fs, ...
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"logbook", base.logbook, ...
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"lambda", lambda, ...
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"nase", 0, ...
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"polrot", polrot);
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end
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