Motion Compensation of Moving Targets for High Range Resolution Stepped-Frequency Radar

Sensors

Yimin Liu¹  Huadong Meng²  Hao Zhang² 

[1] id="af1-sensors-08-03429">Department of Electronic Engineering, Tsinghua University, Beijing 100084, PR Chi

关键词: high resolution;    radar imaging;    stepped-frequency;    motion compensation;   

DOI  :  10.3390/s8053429

来源: mdpi

【 摘 要 】

High range resolution (HRR) profiling using stepped-frequency pulse trains suffers from range shift and the attenuation/dispersion of range profiles while the target of interest is moving. To overcome these two drawbacks, a new algorithm based on the maximum likelihood (ML) estimation is proposed in this paper. Without altering the conventional stepped-frequency waveform, this algorithm can estimate the target velocity and thereby compensate the phase errors caused by the target's motion. It is shown that the velocity can be accurately estimated and the range profile can be correctly reconstructed.

【 授权许可】

CC BY   
© 2008 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.