A Two-Stage Parameter Estimation Method via Airborne CSAR
Conference: EUSAR 2022 - 14th European Conference on Synthetic Aperture Radar
07/25/2022 - 07/27/2022 at Leipzig, Germany
Proceedings: EUSAR 2022
Pages: 4Language: englishTyp: PDF
Authors:
Ge, Beibei; An, Daoxiang; Li, Jianpeng; Chen, Leping; Zhou, Zhimin (College of Electronic Science and Technology, National University of Defense Technology, Changsha, China)
Wang, Mingze; Xu, Wei (Shanxi Neifu Zhongfei Airport Management Co.Ltd, Pucheng, Weinan, China)
Abstract:
Synthetic aperture radar (SAR) plays an important role for generating high-resolution images of target scene because of its all-weather capabilities. The Doppler shift of moving target induces delocalization and defocusing effect in the SAR image. In this paper, we introduce a road-independent method via circular synthetic aperture radar (CSAR) for motion parameter estimation of moving targets on the river. First, the CSAR geometry and signal model of the moving target are established. We then outline the methodology of the proposed two-stage parameter estimation method and give the mathematical analysis of this method. Experimental SAR data results are presented to prove the validity and feasibility of the proposed method.