摘要
本文针对分时极化测量体制,研究了极化合成孔径雷达(PolSAR)有源假目标干扰的鉴别与对消问题.首先建立了真实雷达目标和有源假目标干扰的极化信号模型,指出了真实雷达目标和有源假目标干扰的极化特性差异.在此基础上,提出了一种在慢时间多普勒域进行有源假目标干扰鉴别和对消的原理和方法,并给出了抗有源假目标干扰的PolSAR成像的工程实现流程.仿真实验验证了该方法的有效性.
For time division polarization measurement, the problem of discrimination and suppression of active-decoys jamming in Polarimetric Synthetic Aperture Radar（PolSAR） is studied.Firstly,the signal models of real targets and active-decoys for PolSAR are presented. Then,their differences in polarization domain are analyzed.Based on their difference of polarization characteristics,a novel method for discrimination and suppression of active-decoys jamming in Doppler domain is proposed. Finally, the scheme of the PolSAR image formation which can remove active-decoys jamming is proposed. Its validity is proved by the simulated experimental results.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2007年第9期1779-1783,共5页
Acta Electronica Sinica
基金
全国优秀博士论文专项资助(No.08100101)
新世纪优秀人才计划项目资助(No.NCET-04-0997)
国家自然科学基金(No.60672033)
关键词
极化合成孔径雷达
分时极化测量
有源假目标
雷达成像
相位补偿
多普勒域
PolSAR （Polarimetric Synthetic Aperture Radar）
time division polarization measurement
active-decoys
radar image
phase compensation
Doppler domain
