A Range-Doppler Map Generation Framework for Moving Targets Based on Time-Domain Electromagnetic Scattering Algorithm

Guangbin Guo, Rongshen Zhan,Rui Wang,Lixin Guo

IEEE Antennas and Wireless Propagation Letters（2026）SCI 2区

Xidian Univ

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摘要

In this letter, a method is proposed to obtain the range-Doppler map in cases of antenna-target encounter based on near-field time-domain physical optics (TDPO) method. First, the TDPO method is used to simulate the dynamic scattering echo data during the antenna-target encounter. Then, based on the electromagnetic scattering field expression, the signal processing formula for range-Doppler map simulation is derived. In this letter, modulated Gaussian pulse is used as the transmitting signal, and the corresponding signal processing method is designed, including demodulation, range compression, and slow time fast Fourier transform (FFT). This letter studies the effective combination of the electromagnetic scattering algorithm and signal processing algorithm, and proves its feasibility. The proposed method can be used to quickly generate range-Doppler map data and has significant engineering application value. Finally, some simulation examples are given to verify the feasibility and accuracy of the method.

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关键词

Electromagnetic scattering,Signal processing algorithms,Time-domain analysis,Doppler effect,Antenna radiation patterns,Accuracy,Transient analysis,Surface waves,Optical surface waves,Baseband,Antenna-target encounter,near-field,range-Doppler map,time-domain physical optics (TDPO)

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