Abstract:The estimation of the parameters of K-distribution based on the z log(z) expectation approach is extended to zrlog(z) expectation. The parameter estimation expression of the based on zr log(z) expectation is derived. When r is taken different values, the accuracies of the estimations based on the zrlog(z) expectation are analyzed and compared with one another. Simulation results show that in the parameters range of K distribution radar spiky clutter, the estimation based on zr log(z) expectation is more accurate than z log(z) expectation and Normalised Log Estimator (NLE) approaches when r is less than unity.
胡文琳; 王永良; 王首勇. 基于zrlog(z)期望的K分布参数估计[J]. 电子与信息学报, 2008, 30(1): 203-205 .
Hu Wen-lin①②; Wang Yong-liang②; Wang Shou-yong②. Estimation of the Parameters of K-distribution Based on zr log(z) Expectation. , 2008, 30(1): 203-205 .