电波科学学报2017，Vol.32Issue(3)：253-260,8.DOI:10.13443/j.cjors.2017032201
基于实测数据的分时全极化雷达海杂波分布研究
Time-sharing fully polarimetric radar sea clutter distribution based on real measured data
摘要
Abstract
Based on sea clutter real measured data of IPIX radar,the Rayleigh,Weibull,Log-normal and K-distribution are used to fit the distribution of sea clutter.It shows Log-normal distribution fitting the horizontal polarization to receive better and K-distribution fitting the vertical polarization to receive better,but there is still a situation that the sea clutter trailing region.In this paper,we assume that the Bragg scatterers in the sea clutter follow the K-distribution,and the discrete spikes obey the Log-normal distribution,the mixed distributions of the sea clutter as a whole obeys the K-distribution and the Lognormal distribution superimposed.A mixed distribution with closed expression is proposed,which improves the heavy tailing problem in fully polarimetric scattering characteristic sea clutter modeling.It is verified by the earl measured data that the mixed distribution has better fitting effect than Log-normal distribution and K-distribution.关键词
混合分布/全极化雷达/海杂波/幅度分布/IPIXKey words
mixed distribution/fully polarimetric radar/sea clutter/amplitude distribution/IPIX分类
信息技术与安全科学引用本文复制引用
李重威,杨勇,李永祯,李超..基于实测数据的分时全极化雷达海杂波分布研究[J].电波科学学报,2017,32(3):253-260,8.基金项目
国家自然科学基金(No.61490690,61490692,61501475) （No.61490690,61490692,61501475）
