1. The New Mathematical Model of Motion Compensation for Stepped-Frequency Radar Signal
- Author
-
Bin Li, Jinfeng Pang, Xiaochun Xu, Yun Lin, and Ruolin Zhou
- Subjects
Estimation ,Motion compensation ,Article Subject ,Computer science ,Pulse-Doppler radar ,lcsh:Mathematics ,General Mathematics ,General Engineering ,Value (computer science) ,lcsh:QA1-939 ,Signal ,law.invention ,lcsh:TA1-2040 ,law ,Control theory ,Range (statistics) ,Radar ,lcsh:Engineering (General). Civil engineering (General) - Abstract
When a stepped-frequency radar is used to obtain the high-resolution range profile (HRRP) of high-speed target, accurate speed estimation and motion compensation must be considered. Therefore, in this paper, a novel mathematical method is presented for estimating the target speed. Firstly, the pulse Doppler method is used to calculate the initial estimation value. Secondly, based on the initial estimation value, the minimum entropy method is used to calculate the coarse estimation value. Finally, based on the coarse estimation value, the minimuml1-Norms method is used to calculate the accurate estimation value. The numeric simulation results confirm that this new method is effective and predominant, which has a much higher estimation accuracy in a low SNR and a much larger estimation range of target speed. The final estimation value can be used to well compensate for the influence of target speed on HRRP.
- Published
- 2014