ISAR Imaging with Linear Array-Antenna

摘要：

A linear array-antenna ISAR (LAA ISAR) was concerned in this paper. The imaging geometry and signal model of LAA ISAR were analyzed in detail,and the imaging procedure as well as simulation results were given.Compared with traditional ISAR imaging,the echoes of different antenna element in LAA ISAR should be process before imaging,and a similar digital beam forming method was proposed to solve the problem. After pre-processing,range-doppler algorithm was adopted to accomplish the imaging process,the minimum entropy criterion (MEC) was used for envelope alignment,and the phase gradient autofocus algorithm (PGA) was adopted to fulfil the phase error correction.Simulations were executed in the end and all results illustrated the effectiveness of the LAA ISAR.

关键词： Inverse Synthetic Aperture Radar (ISAR) Linear Array-Antenna (LAA) Minimum Entropy Criterion (MEC) Phase Gradient Autofocus (PGA)

作者: LI Yun-tao CHEN Yong-guang YIN Can-bin

作者单位: Academy of Equipment Command & Technology,Beijing 101416 China 63880 unit,LuoYang 471003,China

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: 656-659

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）