A motion compensation method for the single transmitter and multiple receivers mobile radar system

• Published in: Electronics letters Vol. 60; no. 21
• Main Authors: Lian, Qijun, Da, Kai, Song, Zhiyong, Wang, Ping
• Format: Journal Article
• Language: English
• Published: Wiley 01-11-2024
• Subjects: airborne radar; distributed sensors; Doppler effect
• ISSN: 0013-5194; 1350-911X
• DOI: 10.1049/ell2.70067

The single transmitter and multiple receivers (STMR) mobile radar system is a special distributed radar system, which has stronger detection and survival capabilities. However, the high‐speed movement of the radar platforms easily produce the across‐range cell migration (RCM) of radar echo signal, which cause envelope shift effects within the coherent processing interval. Here, a motion compensation method for the STMR mobile radar system in the sea environment, to solve the problem of RCM is proposed. First, the target points and clutter points with the same Doppler velocity are obtained by the radon Fourier transform method. Second, using the range/Doppler difference between clutter and target under multi‐radar views, the target and clutter points are separated by the spatial range mapping. The simulation results show that the method can effectively improve the coherent accumulation effect of the target in the sea environment with low signal‐to‐clutter ratio (SCR).
Here, a new motion compensation method for single transmitter and multiple receivers mobile radar system is proposed. Compared with the existing methods, this method can effectively improve the parameter estimation accuracy and motion compensation effect of radar for the targets in the low signal‐to‐clutter ratio environment.