L波段小擦地角海杂波KK分布建模

L波段小擦地角海杂波KK分布建模

为了改善小擦地角海杂波建模存在的重拖尾问题，研究KK分布建模方法，基于L波段高分辨小擦地角海杂波数据，分析不同分辨率和不同海况下KK分布与海杂波实测数据的拟合效果，通过与常用的K分布、威布尔分布、对数正态分布等对比，表明KK分布较好解决了K分布等在幅度分布拖尾处与实测数据出现的偏离问题，可在拖尾处达到更好的拟合效果。

（1. 中国电波传播研究所，山东青岛 266107；
2. 西安电子科技大学理学院，陕西西安 710071）

出版日期:2014-07-22 发布日期:2010-01-03

KK distribution modeling with L band low grazing sea clutter

XU Xinyu1， ZHANG Yushi1,2， LI Xin1， YIN Zhiying1

(1. China Research Institute of Radiowave Propagation, Qingdao 266107, China；
2. School of Science, Xidian University, Xi’an 710071, China)

Online:2014-07-22 Published:2010-01-03

摘要/Abstract

摘要：

Abstract:

Based on data collected at low grazing angles by L band high resolution radar，KK distribution is used to fit the distribution of sea clutter with spikes to improve the modelling accuracy in the heavytailed region. The comparison between KK distribution and K, Weibull and Lognormal distributions are presented for different resolution or sea states. The results clearly demonstrate the superiority of KK distribution in modeling sea clutter. The KK distribution outperforms K distribution in the tail region, and significantly decreases the departure of K and empirical distribution.

许心瑜1，张玉石1，2，黎鑫1，尹志盈1. L波段小擦地角海杂波KK分布建模[J]. 系统工程与电子技术.

XU Xinyu1， ZHANG Yushi1,2， LI Xin1， YIN Zhiying1. KK distribution modeling with L band low grazing sea clutter[J]. Systems Engineering and Electronics.