55 lines
2.7 KiB
Matlab
55 lines
2.7 KiB
Matlab
function data_radar=DCA1000_Read_Data(fname)
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global parameter;
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global frame;
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%% 读取回波数据
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fid = fopen(fname,'rb');
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%16bits，复数形式(I/Q两路)，4RX,3TX,有符号16bit
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sdata = fread(fid,frame*parameter.Samples*parameter.Chirps*4*3*2,'int16');
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sdata = sdata((frame-1)*parameter.Samples*parameter.Chirps*4*3*2+1:frame*parameter.Samples*parameter.Chirps*4*3*2);
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%% 1843+DCA1000
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fileSize = size(sdata, 1);
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lvds_data = zeros(1, fileSize/2);
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count = 1;
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for i=1:4:fileSize-5
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lvds_data(1,count) = sdata(i) + 1i*sdata(i+2);
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lvds_data(1,count+1) = sdata(i+1)+1i*sdata(i+3);
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count = count + 2;
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end
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lvds_data = reshape(lvds_data, parameter.Samples*parameter.txNum*parameter.rxNum, parameter.Chirps);
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lvds_data = lvds_data.';
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cdata = zeros(parameter.txNum*parameter.rxNum,parameter.Chirps*parameter.Samples);
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for row = 1:parameter.txNum*parameter.rxNum
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for i = 1: parameter.Chirps
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cdata(row,(i-1)*parameter.Samples+1:i*parameter.Samples) = lvds_data(i,(row-1)*parameter.Samples+1:row*parameter.Samples);
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end
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end
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fclose(fid);
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data_radar_1 = reshape(cdata(1,:),parameter.Samples,parameter.Chirps); %TX1 RX1
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data_radar_2 = reshape(cdata(2,:),parameter.Samples,parameter.Chirps); %TX1 RX2
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data_radar_3 = reshape(cdata(3,:),parameter.Samples,parameter.Chirps); %TX1 RX3
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data_radar_4 = reshape(cdata(4,:),parameter.Samples,parameter.Chirps); %TX1 RX4
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data_radar_5 = reshape(cdata(5,:),parameter.Samples,parameter.Chirps); %TX2 RX1
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data_radar_6 = reshape(cdata(6,:),parameter.Samples,parameter.Chirps); %TX2 RX2
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data_radar_7 = reshape(cdata(7,:),parameter.Samples,parameter.Chirps); %TX2 RX3
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data_radar_8 = reshape(cdata(8,:),parameter.Samples,parameter.Chirps); %TX2 RX4
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data_radar_9 = reshape(cdata(9,:),parameter.Samples,parameter.Chirps); %TX3 RX1
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data_radar_10 = reshape(cdata(10,:),parameter.Samples,parameter.Chirps); %TX3 RX2
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data_radar_11 = reshape(cdata(11,:),parameter.Samples,parameter.Chirps); %TX3 RX3
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data_radar_12 = reshape(cdata(12,:),parameter.Samples,parameter.Chirps); %TX3 RX4
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data_radar=[];
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data_radar(:,:,1)=data_radar_1; %三维雷达回波数据
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data_radar(:,:,2)=data_radar_2;
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data_radar(:,:,3)=data_radar_3;
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data_radar(:,:,4)=data_radar_4;
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data_radar(:,:,5)=data_radar_5;
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data_radar(:,:,6)=data_radar_6;
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data_radar(:,:,7)=data_radar_7;
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data_radar(:,:,8)=data_radar_8;
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data_radar(:,:,9)=data_radar_9;
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data_radar(:,:,10)=data_radar_10;
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data_radar(:,:,11)=data_radar_11;
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data_radar(:,:,12)=data_radar_12;
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end |