电波科学学报2012,Vol.27Issue(5):1005-1011,7.
非高斯相关杂波背景下雷达目标统计检测方法
Radar target statistical test in correlated non-Gaussian clutter backgrounds
摘要
Abstract
It is not easy to establish statistical test model in correlated non-Gaussian clutter backgrounds when parameter is stochastic or unknown. Based on the particle filtering, the proposed method calculates the likelihood function by transforming the integral operation to the sum operation according to the probability distribution function of unknown parameter, and a general radar target likelihood-ratio detec- tion model is established. This method solves the difficulties that it is unable to establish statistical test model in correlated non-Gaussian clutter backgrounds. Taking SG-Alpha stable distribution as the model of correlated non-Gaussian clutter, a statistical test method based on particle filtering is established. Moreover, simulations show that the detection performances of the proposed method are better than the traditional method both in correlated Gaussian and non-Gaussian clutter backgrounds.关键词
非高斯相关杂波/粒子滤波/统计检测/似然函数/概率分布Key words
correlated non-Gaussian clutter/particle filtering/statistical test/like-lihood function/probability distribution分类
信息技术与安全科学引用本文复制引用
冯讯,王首勇,万洋,朱晓波..非高斯相关杂波背景下雷达目标统计检测方法[J].电波科学学报,2012,27(5):1005-1011,7.基金项目
基金项目:国家自然科学基金资助项目(No.60872156 ()
No.61179014) ()