摘要
对海杂波影响舰载雷达系统低空探测性能的原因进行了分析,并研究了海杂波信号幅度分布特性,提出使用α稳定分布建立雷达低空观测信号模型,指出研究基于分数低阶统计量的雷达目标信号检测与估计韧性替代算法的必要性,以实现恒虚警概率下的雷达目标最佳检测,探索提高岸基和舰载雷达对低空及海面目标探测和跟踪性能新的发展方向。
We analyze reasons which radar sea-clutter affects detection performance of low altitude. In this paper, an important distribution law is proposed for sea-clutter signals. We establish a new observa- tion model of α-stable distribution for low altitude detection. It is very concernment that fractional lower-order statistics based detection and estimation robust approach for radar target signals, so as to perform optimal detection under constant probability of false alarm. We point out a new trend for improving performance of track and detection on sea surface or low altitude target.
出处
《舰船科学技术》
北大核心
2005年第4期47-49,共3页
Ship Science and Technology
基金
国家自然科学基金资助课题(60372081)
关键词
海杂波
目标检测
Α稳定分布
分数低阶统计量
sea-clutter
target detection
α-stable distribution
fractional lower-order statistics
