使用phased. RangeDopplerResponse对象,对雷达数据立方体进行距离和多普勒处理。使用汉宁窗来抑制车辆靠近雷达时产生的大副瓣。 Nft=waveform.SweepTime*waveform.SampleRate;% Number of fast-time samplesNst=Nsweep;% Number of slow-time samplesNr=2^nextpow2(Nft);% Number of range samplesNd=2^nextpow2(Nst...
ra_res = range_res*size(xrv,1)/nfft_mul/nfft_r; % RDM Algorithm rngdop = phased.RangeDopplerResponse('PropagationSpeed',c,... 'DopplerOutput','Speed','OperatingFrequency',fc,'SampleRate',fs_d,... 'RangeMethod','FFT','PRFSource','Property',... 'RangeWindow','Hann','PRF',1/wav...
function[d1,d2]=helperSurfaceDopplerLimits(freq,alt,spd,dive,maxRange)% Return the Doppler limits of a flat surface.% Depression angle to max rangeifmaxRange<altmaxRangeDep=90;elsemaxRangeDep=90-acosd(alt/maxRange);end% Normalized maximum closing rateifdive<maxRangeDepmaxClosing=cosd(maxRang...
RangeDopplerResponse('PropagationSpeed',c,... 'DopplerOutput','Speed','OperatingFrequency',fc,'SampleRate',fs_d,... 'RangeMethod','FFT','PRFSource','Property',... 'RangeWindow','Hann','PRF',1/waveform.SweepTime,... 'SweepSlope',waveform.SweepBandwidth/waveform.SweepTime,... 'Range...
Log in verserf Level 1 14 Aug 2023 请问在GUI和matlab获得的IQ正交信号是否一致,是否有存在的matlab历程可以获得range-Doppler图?为何matlab中的信号存在较大的突变毛刺 Solved! Go to Solution. %%1C)DR7YO~3Q6PYNS(%N1E.png 159 KB Like Subscribe 230 0 1 View...
Jt**es上传2.35 KB文件格式mFMCW雷达雷达信号仿真距离多普勒估计range-doppler图RDM图 FMCW雷达信号仿真,距离多普勒估计matlab代码,验证通过,可以绘出准确的RDM图,即距离多普勒图。程序可以应用于雷达信号处理的多方面。车载雷达信号处理,手势雷达信号处理等。
1) What could be causing the periodic doppler? This is most notable in longer range waveforms (>10m maximum range). 2) There is constructive and destructive interference in the range FFT, most observable in the range-azimuth plot as alternating concentric rings and i...
%Doppler Response output. figure('Name', 'CA-CFAR过滤RDM') surf(doppler_axis,range_axis,CUT); colorbar; title( 'CA-CFAR过滤RDM曲面图'); xlabel('速度'); ylabel('范围'); zlabel('归一化幅度'); figure('Name', 'CA-CFAR过滤范围') ...
M3=fftshift(fft(M2',2*D)); %Second FFT for doppler information [My,Ny]=size(M3); doppler=linspace(-D,D,My); range=linspace(-N,N,Ny); figure;contour(range,doppler,abs(M3));grid on; xlabel('Range'); ylabel('Doppler') figure;mesh(range,doppler,abs(M3)); xlabel('Range'); ylab...
I obtained the raw data and processed it to get the range doppler matrix. I am now trying to get the 3D point cloud using FFT. In my setup, the vertual antennas 1-4,9-12 correspond to the azimuth and antennas 5,6,7,8 correspond to the elevation. If i perform the ...