# Frame repetition time default 0.2s (frame rate of 5Hz) chirp_repetition_time_s=0.000411238, # Chirp repetition time (or pulse repetition time) of 411.238us num_chirps=32, # 32 chirps per frame tdm_mimo=False, # MIMO disabled chirp=FmcwSequenceChirp( start_frequency_Hz=59_133_931_281,...
Fc=lrrSysParam.Frequency;detThreshold=Dx(2);% Dx is a variable created by the LRRRangeAnalysis scriptmaxSpd=predictedLRRMetrics{'First Blind Speed',end}/2;% The range-rate limits are [-vb/2, +vb/2), where vb is the blind speedmeasLvlLRR=radarDataGenerator(1,'No scanning',...'Detect...
部分代码: % Radar parameters % carrier frequency [Hz] fc = 24e9; % bandwidth [Hz] B = 1000e6; % pulse duration [s] T = 1e-3; % Constants % speed of light [m/s] c = 3e8; % Imaging parameters % start range [m] start_range = 20; % end range [m] end_range = 120; %...
An FMCW radar transmits a signal the frequency of which repeatedly sweeps upwards and downwards at a rate &agr;. Any target returns are applied to a mixer (6) which is also supplied with a sample of the transmitted signal. During each sweep the mixer output signal is therefore a beat ...
TheFMCW-Radar-Principleis widely used for automotive radar systems. The basic idea for FMCW-Radars is to generate a linear frequency ramp as transmit signal. The difference frequency between the transmitted and received signal is determined after downconversion. In order to detect range and velocity...
We are now ready to see how an FMCW radar finds the range of a single target.Range of a Single TargetAn FMCW radar transmits a frequency modulated CW waveform in Eq (55). Assuming a single target at a distance of d0d0 as before, the returning echo is a delayed version of the ...
TheFMCW-Radar-Principleis widely used for automotive radar systems. The basic idea for FMCW-Radars is to generate a linear frequency ramp as transmit signal. The difference frequency between the transmitted and received signal is determined after downconversion. In order to detect range and velocity...
#Radar parameters settingmaxR=200#Maximum rangerangeRes=1#Range resolutionmaxV=70#Maximum speedfc=77e9#Carrier frequencyc=3e8#Speed of lightr0=100#Target distancev0=70#Target speedB=c/(2*rangeRes)#BandwidthTchirp=5.5*2*maxR/c#Chirp timeendle_time=6.3e-6slope=B/Tchirp#Chirp slopef_IF...
[10]宋景唯.线性度对线性调频雷达距离分辨力的影响[J].电子科技大学学报,1992,21(2):121-126.(Song Jing-wei.The influence of linearity of linear frequency-modulated radar range resolution[J].Journal of University of Electronic Science and Technology,1992,21(2):121-126.)...
FMCW 雷达(Frequency-Modulated Continuous-Wave Radar)是基 于频率调制连续波的雷达技术,是一种新型的雷达测距技术,它可 以准确地测量目标物体的距离或者位置。 FMCW 雷达原理是,发射机发出的信号会先通过一个频率调制器, 其频率会逐渐增加或减少,形成一个连续的频率调制波形,然后发 射出去。这个频率调制的波形会在...