雷达科学与技术2011，Vol.9Issue(2)：172-179,8.
低掠射角海杂波的统计特性分析
Statistical Analysis of Sea Clutter at Low Grazing Angle
谢洪森 1邹鲲 2周鹏1
作者信息
- 1. 海军航空工程学院青岛分院,山东,青岛,266041
- 2. 空军工程大学电讯工程学院,陕西,西安,710077
- 折叠
摘要
Abstract
A lot of literatures indicate that the statistical characteristics of sea clutter at low grazing angle can be modeled as compound Gaussian process, which is the product of speckle with shorter coherent length and texture with longer coherent length, and is non-Gaussian, non-homogeneous, and non-stationary.In this paper, for the X-band radar sea clutter with different range resolutions and polarization, the extraction algorithm of texture is given and power spectrum density of clutter is analyzed at first. The results show that the power spectrum density of clutter can be modeled as exponential model. Secondly, the non-Gaussian of clutter is analyzed in temporal and spatial domains, and the results show that the amplitude probability density function can be fit to the generalized K distribution with log-normal texture. The non-stationarity and nonhomogeneity of sea clutter is analyzed at last.关键词
海杂波/非高斯/非平稳/非均匀/统计特性Key words
sea clutter/ non-Gaussian/ non-stationarity/ non-homogeneity/ statistical characteristics分类
信息技术与安全科学引用本文复制引用
谢洪森,邹鲲,周鹏..低掠射角海杂波的统计特性分析[J].雷达科学与技术,2011,9(2):172-179,8.
