TI中文支持网Part Number:AWR1843BOOST
请问，我想问一下您这张图是对什么物体进行探测，以及对应哪些数据参数得出来的？希望获得您们的解答.
Shine：
没有特定什么物体，采集到的是物体的原始数据。这些数据是通过postproc解析出来的，具体可以看一下下面的mmwave studio user guide文档的21. Radar post processing章节。https://software-dl.ti.com/ra-processors/esd/MMWAVE-STUDIO/latest/exports/mmwave_studio_user_guide.pdf
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Baillu：
我以user gudie为参考，采用说明书中的参数一模一样，对1米以内的墙壁进行探测，准测的来说，不论我对什么东西进行探测，在第四章图上都显示为这样，请问是为什么呢？这张图对我的数据采集毫无意义
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Baillu：
我以user gudie为参考，采用说明书中的参数一模一样，对1米以内的墙壁进行探测，准测的来说，不论我对什么东西进行探测，在第四章图上都显示为这样，请问是为什么呢？这张图对我的数据采集毫无意义
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Baillu：
这是利用dca原始数据采集方法里面的代码，对收集到的信号进行观察，此图为截取的是一个chirp，256个采样点，但是出现的是这样的结果，即每几个采样点之后会出现一段空白，不知道这是为什么？之前几次实验也是类似这样的·结果。代码如下：
%%% This script is used to read the binary file produced by the DCA1000%%% and Mmwave Studio%%% Command to run in Matlab GUI -%readDCA1000('<ADC capture bin file>') function [retVal] = readDCA1000(fileName)%% global variables% change based on sensor config numADCSamples = 256; % number of ADC samples per chirpnumADCBits = 16; % number of ADC bits per samplenumRX = 4; % number of receiversnumLanes = 2; % do not change. number of lanes is always 2isReal = 0; % set to 1 if real only data, 0 if complex data0%% read file% read .bin filefileName='E:\text\house\heart_2.bin';%%在雷达中if信号经过低通到ADC，变成数字再DSP，再傅里叶变化估算物体的距离fid = fopen(fileName,'rb');%打开要读取的文件adcData = fread(fid, 'int16');%读取二进制文件中的数据，以int16读出来，有符号16位数% if 12 or 14 bits ADC per sample compensate for sign extensionif numADCBits ~= 16l_max = 2^(numADCBits-1)-1;adcData(adcData > l_max) = adcData(adcData > l_max) – 2^numADCBits;endfclose(fid);fileSize = size(adcData, 1);% real data reshape, filesize = numADCSamples*numChirpsif isRealnumChirps = fileSize/numADCSamples/numRX;LVDS = zeros(1, fileSize);%create column for each chirpLVDS = reshape(adcData, numADCSamples*numRX, numChirps);%each row is data from one chirpLVDS = LVDS.';else% for complex data% filesize = 2 * numADCSamples*numChirps?????%每一行代表每个接收天线接收的数据，每行的列数是每个chirp的ADC采样数*chirp总数%255*256*48=3133440，前256对应第一个chirp，前256*255对应第一个framenumChirps = fileSize/2/numADCSamples/numRX;LVDS = zeros(1, fileSize/2);%combine real and imaginary part into complex data%read in file: 2I is followed by 2Qcounter = 1;for i=1:4:fileSize-1LVDS(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 chirpLVDS = reshape(LVDS, numADCSamples*numRX, numChirps);%each row is data from one chirpLVDS = LVDS.';end%organize data per RXadcData = zeros(numRX,numChirps*numADCSamples);for row = 1:numRXfor i = 1: numChirpsadcData(row, (i-1)*numADCSamples+1:i*numADCSamples) = LVDS(i, (row-1)*numADCSamples+1:row*numADCSamples);endend% return receiver dataretVal = adcData;A=sqrt((real(retVal(1,1:256))).^2+(imag(retVal(1,1:256))).^2);figure(1),plot(A)%axis([2.7928e6 2.7933e6 -1000 1000]);%figure(2),plot(real(retVal(1,:)),real(retVal(2,:)),real(retVal(3,:)),real(retVal(4,:)))figure(3)plot(real(retVal(1,1:256)),'r')hold onplot(real(retVal(2,1:256)),'y')hold onplot(real(retVal(3,1:256)),'b')hold onplot(real(retVal(4,1:256)),'g')%axis([2.7928e6 2.7933e6 -1000 1000]);
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Shine：
请在您的另外一个帖子里讨论。https://e2echina.ti.com/support/sensors/f/sensors-forum/755281/awr1843boost-awr1843boost
