一种K-分布杂波参数估计方法  

An Estimation Method for K-distribution Clutter Parameters

作　　者：徐伟[1] 陈永森[1] 

机构地区：[1]船舶重工集团公司723所,扬州225001

出　　处：《舰船电子对抗》2013年第3期82-84,共3页Shipboard Electronic Countermeasure

摘　　要：提出了一种K-分布杂波的参数估计方法,该方法利用ln(x)的一、二阶矩之间的函数关系求解杂波的形状参数和尺度参数,避免了常规估计方法在杂波形状参数较大时所导致的错误估计。利用实测海杂波数据对该方法进行了分析和验证,仿真结果表明该方法具有很好的工程实用性和较高的估计精度。A method to estimate the K-distribution clutter parameters is proposed in this paper. By using the function relationship between the first and second moments of In（x）, the shape parameter and the scale parameter of K-distributed clutter is solved, the false estimation due to larger shape parameter of clutter is avoided through conventional estimation method. This paper analyzes and validates this method by means of sea clutter data in the actual measurement. Simulation result shows that this method is provided with perfect engineering practicability and estimation precision.

关 键 词：K-分布 雷达杂波 矩方法 参数估计 

分 类 号：TN957.57[电子电信—信号与信息处理]