航空兵器Issue(2)：38-42,5.DOI:10.19297/j.cnki.41-1228/tj.2018.02.007
基于组合分形特征的海杂波中目标检测方法
Target Detection Method in Sea Clutter Based on Combined Fractal Characteristics
摘要
Abstract
Using one of fractal characteristics to detect targets in sea clutter, it is often difficult to distinguish at low signal-to-clutter ratios.To solve this problem,a new method for target detection in sea clutter based on combined fractal characteristics is proposed.The detection process is divided into two sta-ges:rough detection and fine detection.When the fractal spectrum dimension characteristic of the detec-tion unit is obvious,in the rough detection stage, the corresponding processing is carried out to achieve the target existence decision.When the fractal spectrum dimension characteristic is not obvious,the frac-tal model fitting error and the fractal dimension change quantity are used as characteristic quantities,and the comprehensive fuzzy membership degree is adopted to carry out the fine target detection.Verified by X-band radar real data,the results show that the proposed method can greatly enhance the detection accu-racy of weak targets in sea clutter.关键词
目标检测/海杂波/组合分形/谱维数Key words
target detection/sea clutter/combined fractal/spectrum dimension分类
军事科技引用本文复制引用
刘宁波,丁昊,田永华,文树梁,关键..基于组合分形特征的海杂波中目标检测方法[J].航空兵器,2018,(2):38-42,5.基金项目
国家自然科学基金项目(61531020 （）
61471382 （）
61501487) （）
中国博士后科学基金项目(2017M620862) （2017M620862）
航空科学基金项目(20150184003) （20150184003）
"泰山学者"建设工程专项经费 （）
