摘要
为有效检测海杂波背景下的弱目标,研究一种基于小波领袖多重分形(WL-MF)分析的目标检测方法.该方法采用小波领袖法分析海杂波的多重分形特性,利用海杂波与目标的多重分形参数差异实现目标检测.采用IPIX雷达实测海杂波数据对该方法进行验证,结果表明:尺度函数与多重分形谱在不同海情下对海杂波和目标均具有良好的区分能力,且与传统的多重分形去势波动分析法相比,WL-MF计算量小,更便于检测.
To detect weak sea target effectively, the method based on wavelet leaders multifractal （WL - MF ） was studied. Wavelet leaders was used to analyze the muhifraetal characteristics of sea clutter, the muhifractal parameters of sea clutter and target area were extracted to detect target. It is verified by IPIX radar sea clutter data. Result shows that scaling function and muhifractal spectrum have the ability for distinguishing target from clutter under different sea conditions. In comparison with traditional multifractal detrended fluctuation analysis, the WL - MF method needs less computation and is easier to carry out.
出处
《大连海事大学学报》
CAS
CSCD
北大核心
2015年第3期128-132,共5页
Journal of Dalian Maritime University
