From ced7e84e7eb0c0ecd840caaa8dad9615c054d98a Mon Sep 17 00:00:00 2001 From: "St. Zhang" <119722046+StZhang-B@users.noreply.github.com> Date: Mon, 11 Mar 2024 21:06:00 +0800 Subject: [PATCH] Add files via upload --- 基于热力图的人体定位demo/DCA1000_Read_Data.m | 55 ++++++++++++++++++++ 基于热力图的人体定位demo/generateParameter.m | 37 +++++++++++++ 2 files changed, 92 insertions(+) create mode 100644 基于热力图的人体定位demo/DCA1000_Read_Data.m create mode 100644 基于热力图的人体定位demo/generateParameter.m diff --git a/基于热力图的人体定位demo/DCA1000_Read_Data.m b/基于热力图的人体定位demo/DCA1000_Read_Data.m new file mode 100644 index 0000000..9417841 --- /dev/null +++ b/基于热力图的人体定位demo/DCA1000_Read_Data.m @@ -0,0 +1,55 @@ +function data_radar=DCA1000_Read_Data(fname) + global parameter; + global frame; + + %% 读取回波数据 + fid = fopen(fname,'rb'); + %16bits，复数形式(I/Q两路)，4RX,3TX,有符号16bit + sdata = fread(fid,frame*parameter.Samples*parameter.Chirps*4*3*2,'int16'); + sdata = sdata((frame-1)*parameter.Samples*parameter.Chirps*4*3*2+1:frame*parameter.Samples*parameter.Chirps*4*3*2); + + %% 1843+DCA1000 + fileSize = size(sdata, 1); + lvds_data = zeros(1, fileSize/2); + count = 1; + for i=1:4:fileSize-5 + lvds_data(1,count) = sdata(i) + 1i*sdata(i+2); + lvds_data(1,count+1) = sdata(i+1)+1i*sdata(i+3); + count = count + 2; + end + lvds_data = reshape(lvds_data, parameter.Samples*parameter.txNum*parameter.rxNum, parameter.Chirps); + lvds_data = lvds_data.'; + cdata = zeros(parameter.txNum*parameter.rxNum,parameter.Chirps*parameter.Samples); + for row = 1:parameter.txNum*parameter.rxNum + for i = 1: parameter.Chirps + cdata(row,(i-1)*parameter.Samples+1:i*parameter.Samples) = lvds_data(i,(row-1)*parameter.Samples+1:row*parameter.Samples); + end + end + fclose(fid); + data_radar_1 = reshape(cdata(1,:),parameter.Samples,parameter.Chirps); %TX1 RX1 + data_radar_2 = reshape(cdata(2,:),parameter.Samples,parameter.Chirps); %TX1 RX2 + data_radar_3 = reshape(cdata(3,:),parameter.Samples,parameter.Chirps); %TX1 RX3 + data_radar_4 = reshape(cdata(4,:),parameter.Samples,parameter.Chirps); %TX1 RX4 + data_radar_5 = reshape(cdata(5,:),parameter.Samples,parameter.Chirps); %TX2 RX1 + data_radar_6 = reshape(cdata(6,:),parameter.Samples,parameter.Chirps); %TX2 RX2 + data_radar_7 = reshape(cdata(7,:),parameter.Samples,parameter.Chirps); %TX2 RX3 + data_radar_8 = reshape(cdata(8,:),parameter.Samples,parameter.Chirps); %TX2 RX4 + data_radar_9 = reshape(cdata(9,:),parameter.Samples,parameter.Chirps); %TX3 RX1 + data_radar_10 = reshape(cdata(10,:),parameter.Samples,parameter.Chirps); %TX3 RX2 + data_radar_11 = reshape(cdata(11,:),parameter.Samples,parameter.Chirps); %TX3 RX3 + data_radar_12 = reshape(cdata(12,:),parameter.Samples,parameter.Chirps); %TX3 RX4 + data_radar=[]; + data_radar(:,:,1)=data_radar_1; %三维雷达回波数据 + data_radar(:,:,2)=data_radar_2; + data_radar(:,:,3)=data_radar_3; + data_radar(:,:,4)=data_radar_4; + data_radar(:,:,5)=data_radar_5; + data_radar(:,:,6)=data_radar_6; + data_radar(:,:,7)=data_radar_7; + data_radar(:,:,8)=data_radar_8; + data_radar(:,:,9)=data_radar_9; + data_radar(:,:,10)=data_radar_10; + data_radar(:,:,11)=data_radar_11; + data_radar(:,:,12)=data_radar_12; + +end \ No newline at end of file diff --git a/基于热力图的人体定位demo/generateParameter.m b/基于热力图的人体定位demo/generateParameter.m new file mode 100644 index 0000000..a2622ae --- /dev/null +++ b/基于热力图的人体定位demo/generateParameter.m @@ -0,0 +1,37 @@ +%% 雷达参数设置 +function parameter = generateParameter() + + parameter.c = 3e8; %光速 + + parameter.stratFreq = 77e9; %起始频率 + + parameter.Tr = 60e-6; %扫频时间 + parameter.Idle_time = 100e-6; %空闲时间 + parameter.Tc = parameter.Tr+parameter.Idle_time; %Chirp之间的间隔 + parameter.Samples = 256; %采样点 + parameter.Fs = 10e6; %采样率 + parameter.Tframe_set = 80e-3; % 帧周期 + + parameter.rangeBin = parameter.Samples ; %rangebin + parameter.Chirps = 128; %chirp数 + parameter.dopplerBin = parameter.Chirps; %dopplerbin + + parameter.Slope = 29.982e12; %chirp斜率 + parameter.Bandwidth = parameter.Slope * parameter.Tr ; %发射信号有效带宽 + parameter.BandwidthValid = parameter.Samples/parameter.Fs*parameter.Slope; %发射信号带宽 + parameter.centerFreq = parameter.stratFreq + parameter.Bandwidth / 2; %中心频率 + parameter.lambda = parameter.c / parameter.centerFreq; %波长 + + parameter.txAntenna = ones(1,3); %发射天线个数 + parameter.rxAntenna = ones(1,4); %接收天线个数 + parameter.txNum = length(parameter.txAntenna); + parameter.rxNum = length(parameter.rxAntenna); + parameter.virtualAntenna = length(parameter.txAntenna) * length(parameter.rxAntenna); + parameter.angleBin = 180; %anglebin + + parameter.dz = parameter.lambda / 2; %接收天线俯仰间距 + parameter.dx = parameter.lambda / 2; %接收天线水平间距 + + parameter.numCPI = 50; % 帧数 + +end