十、参考文献 [1] Richards, Mark.Fundamentals of Radar Signal Processing. New York: McGraw Hill, 2005.
(3) S. Alland, W. Stark, M. Ali and M. Hegde, "Interference in Automotive Radar Systems: Characteristics, Mitigation Techniques, and Current and Future Research," in IEEE Signal Processing Magazine, vol. 36, no. 5, pp. 45-59, Sept. 2019, doi:10.1109/MSP.2019.2908214. (4) M. Kuner...
targets = phased.RadarTarget('MeanRCS',target_rcs,'PropagationSpeed',c,'OperatingFrequency',fc); targetmotion = phased.Platform('InitialPosition',target_pos,... 'Velocity',targets_vel); %% %% Signal Propogation % simulation of free space propagtion channel = phased.FreeSpace('PropagationSpeed',...
A key processing step for FMCW radar is dechirping. Dechirping is the process of mixing the transmitted waveform with the received signal. For dechirping to work properly in simulation, the sampling frequency of the waveform must be at least the signal bandwidth. The simulation differs from the...
本程序来源:https://github.com/ekurtgl/FMCW-MIMO-Radar-Simulation,作者是阿拉巴马大学博士生艾库特格尔,研究方向主要是雷达信号处理人类活动识别以及雷达数据的机器学习应用,这份比较新的开源雷达仿真代码,值得大家学习。 下面主要分析代码的主要内容,方便大家解读。
基于77GHz FMCW 毫米波雷达的SAR成像教程(含MATLAB代码),1.项目介绍Inscopeoftheproject,atwo-dimensional(2-D)near-fieldimagingsystembasedonthecombinationofsyntheticapertureradar(SAR)processingtechniquesandthelow-costsystem-on-chipmilli
(FMCW) radars is designed. To create a synthetic aperture over the target scene, a two-axis automatic rail system is built and integrated with Texas Instruments IWR1443 77-GHz millimeter-wave FMCW radar sensor. In this tutorial, simplified signal processing techniques for near-field 2-D image ...
该系统由模拟前端和FPGA共同处理实现,设计多种工作模式以实现近、中、远3种探测距离及相应的分辨率。通过MATLAB模拟射频前端去调频处理后的信号,加载到FPGA数字下变频处理,对所得信号仿真得到输出频谱,并进行闭环板级实测,验证了该基于FMCW环扫SAR的目标距离向成像系统设计的可行性。
在Matlab[3]环境下,模拟对称三角波线性调频信号经延时后,通过混频、滤波、FFT等步骤,观测其频谱,验证使用对称三角波线性调频信号测量拍频的可行性。其中最大频偏Fm为150 MHz。图6为仿真系统框图。 图7分别为混频信号通过低通滤波器前后的信号频谱。从图中可以看出通过一个低通滤波器可以很容易得到需要的差拍频率。
Transceiver Signal Processing To form a large virtual array at the MIMO radar receiver, the transmit waveforms on different transmit antennas need to be orthogonal such that the receiver can separate signals from different transmit antennas. This example adopts time division multiplexing (TDM) to achie...