ISAR Imaging for Rapidly Spinning Targets

摘要：

A new method of ISAR imaging is proposed in this paper for rapidly spinning targets in space. This type of target rotates several rounds around a stable axis during the imaging processing time. The spin motion induces multi period sinusoidal modulation in both range and Doppler domain of the radar echoes,which cause the conventional Range-Doppler (R-D) algorithm to become invalid in ISAR imaging. The presented method analyses the echo model of the target spinning around an arbitrary axis. Then it resamples the echo sequence under the condition of estimation of the target spinning period,and reconstructs the image from this new echo sequence. The simulation result shows that this method can avoid the influence of the targets uniform speed spin motion and achieve ISAR image effectively.

关键词： ISAR imaging Rapid spinning target Spinning period estimate Echo sequence resampling

作者: Yang Yuhao Yin Zhiping Wang Dongjin Chen Weidong

作者单位: Department of Electronic Engineering & Information Science,University of Science & Technology of China,HeFei,230027

会议类型: 国际会议

会议名称: 2009 2nd Asian-Pacific Conference on Synthetic Aperture Radar(第二届亚太合成孔径雷达会议)

会议地点: 西安

会议语种:英文

页码: 614-617

在线出版日期: 2009-10-26（万方平台首次上网日期，不代表论文的发表时间）