Weibull海杂波环境中基于Hough变换的目标最优检测

给出了基于Hough变换的信号检测结构及最优门限的确立方法 ,设计了仿真流程 ,并通过仿真计算分析了Weibull海杂波环境中基于Hough变换的目标检测性能 ,得到了所需SCR最小意义下的最优检测结构 ,最后指出了实际应用中的次优检测策略。

一种海杂波背景下的目标跟踪数据关联方法

针对杂波背景下的目标跟踪问题,采用最近邻滤波(NNF)算法和概率数据关联滤波(PDAF)算法对强海杂波背景下的水面舰船目标跟踪进行了理论分析与仿真。并针对密集海杂波环境,在PDAF算法基础上引入二次距离加权概念,对已有PDAF算法的关联概率值计算方法进行改进,对不同密度的海杂波环境中的单目标跟踪进行了仿真。仿真结果表明,该改进算法在密集海杂波环境中的跟踪性能有所提高,能够更有效且可靠实现非机动目标的跟踪。

MODELING AND SIMULATION OF COMPOUND CLUTTER FOR COASTAL ENVIRONMENT

This paper introduces a novel clutter power model of coastal compound and deduces the statistic characteristics and the arithmetics of model parameter estimation algorithm. Then, a novel coastal compound distributed model of the clutter amplitude is proposed and its statistic character- istics are studied. Subsequently, the nonlinear relation of autocorrelation function is deduced between the coastal compound clutter random sequences and the correlated Gaussian random sequences, which is the important prerequisite for the clutter simulation based on the ZMNL (Zero Memory NonLin- earity). Lastly, the advantage of the algorithm is demonstrated by a feasible simulation of the gen- eration of the random coastal compound clutter sequences.