AWR2243 读取文件中的字节，重组为所需的矩阵

原厂程序为：

function [radar_data_Rxchain] = read_ADC_bin_TDA2_separateFiles(fileNameCascade,frameIdx,numSamplePerChirp,numChirpPerLoop,numLoops, numRXPerDevice, numDevices)


  dataFolder =fileNameCascade.dataFolderName;
  fileFullPath_master = fullfile(dataFolder,fileNameCascade.master);
  fileFullPath_slave1 = fullfile(dataFolder,fileNameCascade.slave1);
  fileFullPath_slave2 = fullfile(dataFolder,fileNameCascade.slave2);
  fileFullPath_slave3 = fullfile(dataFolder,fileNameCascade.slave3);

 [radar_data_Rxchain_master] = readBinFile(fileFullPath_master, frameIdx,numSamplePerChirp,numChirpPerLoop,numLoops, numRXPerDevice, numDevices);
 [radar_data_Rxchain_slave1] = readBinFile(fileFullPath_slave1, frameIdx,numSamplePerChirp,numChirpPerLoop,numLoops, numRXPerDevice, numDevices);
 [radar_data_Rxchain_slave2] = readBinFile(fileFullPath_slave2, frameIdx,numSamplePerChirp,numChirpPerLoop,numLoops, numRXPerDevice, numDevices);
 [radar_data_Rxchain_slave3] = readBinFile(fileFullPath_slave3, frameIdx,numSamplePerChirp,numChirpPerLoop,numLoops, numRXPerDevice, numDevices);


 radar_data_Rxchain(:,:,1:4,:) = radar_data_Rxchain_master;
 radar_data_Rxchain(:,:,5:8,:) = radar_data_Rxchain_slave1;
 radar_data_Rxchain(:,:,9:12,:) = radar_data_Rxchain_slave2;
 radar_data_Rxchain(:,:,13:16,:) = radar_data_Rxchain_slave3;
        
end


function [adcData1Complex] = readBinFile(fileFullPath, frameIdx,numSamplePerChirp,numChirpPerLoop,numLoops, numRXPerDevice, numDevices)
% 每帧预期的采样数
Expected_Num_SamplesPerFrame = numSamplePerChirp*numChirpPerLoop*numLoops*numRXPerDevice*2; 
fp = fopen(fileFullPath, 'r');
fseek(fp,(frameIdx-1)*Expected_Num_SamplesPerFrame*2, 'bof'); % fseek移至文件中的指定位置
adcData1 = fread(fp,Expected_Num_SamplesPerFrame,'uint16');
neg             = logical(bitget(adcData1, 16));   % logical将数值转换为逻辑值    bitget获取指定位置的位
adcData1(neg)    = adcData1(neg) - 2^16;
%% 
adcData2 = adcData1(1:2:end) + sqrt(-1)*adcData1(2:2:end);   % 实部加虚部  
adcData1Complex = reshape(adcData2, numRXPerDevice, numSamplePerChirp, numChirpPerLoop, numLoops);
adcData1Complex = permute(adcData1Complex, [2 4 1 3]);  % 置换数组维度
fclose(fp);
end

程序输入依次为，

        fileNameCascade :二进制文件名

   frameIdx, 帧编号， 

  numSamplePerChirp,  采样点数 ，原厂为256

  numChirpPerLoop,  每循环调频数，原厂为12

  numLoops,  循环数，原厂为64

  numRXPerDevice,  每个芯片的接收天线个数，原厂为4

  numDevices，芯片数 为 1。每个芯片对应一个存储的二进制文件

      程序依次读取四个二进制文件，计算每帧的采样数，在二进制文件中读取相应的字节数，将读取到的字节通过 实部，虚部 相加。得到整个周期的调频信号。

      调频信号为 一个   4 X 256 X  12 X 64 的矩阵。 12根天线依次发射，4根天线同时接收，每根天线采样点为256，循环64次。

      重组矩阵，调整为 256 X 64 X 4 X 12。 方便进行后期处理。