Analysis of Inner-pulse Doppler Effect for The Echoes of Inverse Synthetic Aperture LADAR

摘要：

Inverse synthetic aperture LIDAR is an active imaging system, which can achieve high resolution real time imaging for moving targets. For the traditional inverse synthetic aperture radar, the inner-pulse Doppler frequency will reduce the quality of image obviously only when the target has high speed. However, due to the ultra-high frequency and ultra-wide bandwidth of the laser signal, the influence of inner-pulse Doppler cannot be ignored even for the low speed moving targets in the ISAL. This paper analyzes the inner-pulse Doppler effect of the ISAL echoes and presents an echo model for the ISAL. Via the conventional motion compensation method, in which the accurate estimation of reference points track is obtained after range realigning and phase focusing, the inner-pulse Doppler effect can be removed and then the image of target can be achieved. Finally, some simulation results are given in the paper.

关键词： Inverse synthetic aperture LIDAR (ISAL) innerpulse Doppler effect echo signal model

作者: YANG Xiaoyou CHI Long ZHANG Qun WANG Chong ZHOU Liang

作者单位: Inst.of Telecommunication Engineering, AFEU, Xi’an, 710077, China Inst.of Telecommunication Engineering, AFEU, Xi’an, 710077, China Key Laboratory of Wave Scattering Beijing Special Vehicle Institute, Beijing, 100072, China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 2295-2298

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）