How to train complex [64 1] matrices in deeplearning nw
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I am trying to train a complex numbered matrix with a fullyconnected layer,
but I can't read the value of the imaginary axis from the input layer. Is there a way?
1) The method I thought of was dividing real and imag to learn the input layer into two
, but I can't find such a method well..
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Srivardhan Gadila
2021-3-29
You can refer to the example: Modulation Classification with Deep Learning, specifically the pretrained network and "Transform Complex Signals to Real Arrays" section.
The following code might help you:
inputSize = [64 1 2];
numSamples = 128;
numClasses = 4;
%% Generate random data for training the network.
trainData = randn([inputSize numSamples]);
trainLabels = categorical(randi([0 numClasses-1], numSamples,1));
%% Create a network.
layers = [
imageInputLayer(inputSize,'Name','input')
convolution2dLayer([3 1],16,'Padding','same','Name','conv_1')
batchNormalizationLayer('Name','BN_1')
reluLayer('Name','relu_1')
fullyConnectedLayer(10,'Name','fc1')
fullyConnectedLayer(numClasses,'Name','fc2')
softmaxLayer('Name','softmax')
classificationLayer('Name','classOutput')];
lgraph = layerGraph(layers);
analyzeNetwork(lgraph);
%% Define training options.
options = trainingOptions('adam', ...
'InitialLearnRate',0.005, ...
'LearnRateSchedule','piecewise',...
'MaxEpochs',100, ...
'MiniBatchSize',128, ...
'Verbose',1, ...
'Plots','training-progress');
%% Train the network.
net = trainNetwork(trainData,trainLabels,layers,options);
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