系统工程与电子技术

• 传感器与信号处理 • 上一篇    下一篇

对调频斜率极性捷变SAR间歇采样转发

张静克, 代大海, 邢世其, 王雪松, 肖顺平   

  1. (国防科学技术大学电子信息系统复杂电磁环境效应国家重点实验室,湖南 长沙 410073)
  • 出版日期:2015-04-23 发布日期:2010-01-03

Analysis of jamming effect on intermittent samplingrepeater jamming to CRPJSAR

ZHANG Jingke, DAI Dahai, XING Shiqi, WANG Xuesong, XIAO Shunping   

  1. (State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, National University of Defense Technology, Changsha 410073, China)
  • Online:2015-04-23 Published:2010-01-03

摘要:

研究了间歇采样转发干扰对调频斜率极性捷变合成孔径雷达(chirp rate polarity jitteredsynthetic aperture radar, CRPJSAR)的干扰效果。建立了CRPJSAR间歇采样转发干扰信号模型,通过推导得到干扰的成像输出以及假目标位置和幅度的解析计算公式。结果表明间歇采样转发干扰不仅能够在距离向形成等间隔分布的多阶假目标,而且当假目标阶数不为零时,在同一距离向存在3个沿方位向等间隔分布的假目标。仿真验证了理论分析的正确性。

Abstract:

Jamming effect on intermittent sampling repeater jamming to chirp rate polarity jittered SAR (CRPJSAR)is investigated. The intermittent sampling repeater jamming model of CRPJSAR is built, the imaging result of jamming is derived, and analytical formulas to calculate the locations and amplitudes of false targets are given. The image result shows that the jamming can produce multiple order false targets in range direction, and when the order is unequal to zero, there are three false targets which spreads along the cross range direction in equal interval at the same range direction. The correctness of the theoretical analysis is validated further by simulation experiments.