matlab解析毫米波雷达bin文件数据 得到复数

来源：TI提供的Mmwave Radar Device ADC Raw Data Capture

%%% This script is used to read the binary file produced by the DCA1000
%%% and Mmwave Studio
%%% Command to run in Matlab GUI -
function [retVal] = readDCA1000(fileName)
%% global variables
% change based on sensor config
numADCSamples = 256; % number of ADC samples per chirp
numADCBits = 16; % number of ADC bits per sample
numRX = 4; % number of receivers
numLanes = 2; % do not change. number of lanes is always 2
isReal = 0; % set to 1 if real only data, 0 if complex data0
%% read file
% read .bin file
fid = fopen(fileName,'r');
adcData = fread(fid, 'int16');
% if 12 or 14 bits ADC per sample compensate for sign extension
if numADCBits ~= 16
    l_max = 2^(numADCBits-1)-1;
    adcData(adcData > l_max) = adcData(adcData > l_max) - 2^numADCBits;
end
fclose(fid);
fileSize = size(adcData, 1);
% real data reshape, filesize = numADCSamples*numChirps
if isReal
    numChirps = fileSize/numADCSamples/numRX;
    LVDS = zeros(1, fileSize);
    %create column for each chirp
    LVDS = reshape(adcData, numADCSamples*numRX, numChirps);
    %each row is data from one chirp
    LVDS = LVDS.';
else
    % for complex data
    % filesize = 2 * numADCSamples*numChirps
    numChirps = fileSize/2/numADCSamples/numRX;
    LVDS = zeros(1, fileSize/2);
    %combine real and imaginary part into complex data
    %read in file: 2I is followed by 2Q
    counter = 1;
    for i=1:4:fileSize-1
    LVDS(1,counter) = adcData(i) + sqrt(-1)*adcData(i+2); LVDS(1,counter+1) = adcData(i+1)+sqrt(-1)*adcData(i+3); counter = counter + 2;
    end
    % create column for each chirp
    LVDS = reshape(LVDS, numADCSamples*numRX, numChirps);
    %each row is data from one chirp
    LVDS = LVDS.';
end
%organize data per RX
adcData = zeros(numRX,numChirps*numADCSamples);
for row = 1:numRX
    for i = 1: numChirps
        adcData(row, (i-1)*numADCSamples+1:i*numADCSamples) = LVDS(i, (row-1)*numADCSamples+1:row*numADCSamples);
    end
end
% return receiver data
%retVal = adcData;
save("./temp.mat", 'adcData')

调用方法：控制台输入readDCA1000('里面填你要读的bin的绝对地址')