电波科学学报2012，Vol.27Issue(5)：943-953,1062,12.
实测海杂波数据空间相关性研究
Spatial correlation property with measured sea clutter data
摘要
Abstract
The spatial correlation property of sea clutter amplitude and spectrum is researched with measured data according to the requirement of target detection problems under sea clutter. For the spatial correlation of amplitude,correlation coefficient and detrended fluctuation analysis methods are adopted. The research mainly concentrates on the trend of spatial correlation property with radar range resolution, sea state, sampling rate and in- tegration in non-coherent condition, the property of real part, imaginary part as well as envelope of the correlation coefficient in coherent condition, and long range spatial correlation property in different sea states. Then, correlation coefficient and cross-correlation coefficient are used to quantify the spatial correlation of spectrum. The emphasis of this part includes the correlation property of single frequency component and the cross-correlation property between centroid, bandwidth and power level. The common tendency of spatial correlation property and the dependence of part property on both radar and environment parameters are mastered through the research, which can offer as prior information and theoretical reference for further understanding of sea surface scattering mechanism, optimum design of target detection algorithm as well as sea clutter simulation.关键词
海杂波/空间相关性/相关系数/消除趋势波动分析Key words
sea clutter/spatial correlation property/correlation coefficient/detrended fluctuation analysis分类
信息技术与安全科学引用本文复制引用
关键,丁昊,黄勇,王国庆,何友..实测海杂波数据空间相关性研究[J].电波科学学报,2012,27(5):943-953,1062,12.基金项目
基金项目：国家自然科学基金资助项目 （）
