摘要
研究了窄带极化雷达的弱信号检测问题。首先给出目标散射波和随机极化波瞬态Stokes子矢量序列(ISVS)的表征方法和匹配距离的概念,而后提出了一种雷达目标散射信号Stokes子矢量的估计方法。最后,利用目标散射信号和接收机噪声的ISVS之间的差异,基于径向积累的思想提出了一种弱信号检测算法,可以显著改善雷达系统的检测性能,对于反隐身、预警和空间探测等具有一定的指导意义。
The weak signal detection of narrowband dual-polarization radar system is researched in this paper. Firstly, the descriptions of instantaneous Stokes sub-vector sequences（ISVS） of radar echo and random polarization wave are presented. Then an estimation method of Stokes sub-vector is derived. Final, utilizing the difference between the ISVSs of radar target echo and noise,a novel detection algorithm is presented through polarization and power accumulation, and the radar detection performance can be obviously improved. The algorithm is useful to radar anti-stealthy,early warning and space detection or other applications.
出处
《雷达科学与技术》
2007年第1期29-33,共5页
Radar Science and Technology
基金
全国优秀博士论文专项资金资助项目(No.08100101)
