基于线性调频步进信号的ISAR成像技术研究
Research on ISAR Imagimg Based on Linearly Modulated Frequency Stepped Radar Signal
-
摘要: 分析了线性调频步进雷达信号(LMFS)的形式及成像的特点,利用对雷达发射信号的设计,提出了此类信号切实可行的运动补偿方案;提出了两种形成延展目标ISAR像的拼接方法;最后通过实测数据验证所提运动补偿方法的有效性并通过仿真验证了所提ISAR像拼接方法的正确性。Abstract: The features of the linearly modulated frequency stepped radar signal (LMFS) and imaging based on it are analyzed. A feasible scheme of target motion compensation is proposed by using designation of radar transmitting signal; ISAR image is achieved by two methods of ISAR image combination for LMFS. The effectiveness of the scheme of target motion compensation is shown by the theoretical analysis and processing of the practical data, and the effectiveness of these methods of ISAR image combination are shown by the theoretical analysis and computer simulation.
-
D.R. Wehner, High Resolution Radar, London: Artech House,1995, 197-236.[2]龙腾,毛二可,何佩琨,调频步进雷达信号分析与处理,电子学报,1998,26(12),84-88.[3]郑学合,高分辨力雷达导引头多维信息提取技术研究,博士论文,航天部二院,1998,48-53.[4]F. Berizzi, G. Pinelli, Maximum-likelihood ISAR image autofocusing technique based on instantaneous frequency estimation, IEE proc.-F, 1997, 144(5), 284-291.[5]J. Sok, S. Tariq, B. C. Flores, Phase difference method for target motion compensation of steppedfrequency ISAR signature, SPIE Radar Processing, Technology, and Application, 1996, 2485,163-174.[6]叶炜,保铮,逆合成孔径雷达子聚焦的新方法--局域特显点综合法,中国科学(E辑),1997,25(5),424-429.[7]T. Itoh, H. Sueda H, Y. Watanabe, Motion compensation for ISAR via centroid tracking, IEEE Trans. on AES, 1996, 32(3), 1191-1197. -
计量
- 文章访问数: 2203
- HTML全文浏览量: 107
- PDF下载量: 847
- 被引次数: 0
下载:
