安徽大学学报（自然科学版）2012，Vol.36Issue(5)：47-54,8.
常规雷达飞机目标回波多重分形特性分析
Analysis of the multifractal characteristics of the conventional radar return signal from aircraft targets
摘要
Abstract
The multifractal feature of the conventional radar return signal from aircraft targets offers the fine description of the dynamic characteristics which induce the target's echo structure, therefore it can provide a new way to the aircraft target classification and its recognition in the conventional radar. On the basis of introducing the research methods for the multifractal as well as the mathematical model of aircraft returns in the conventional radar, by means of the multifractal measure analysis, the multifractal characteristic curves of the aircraft returns such as the mass index and the multifractal singularity spectrum were analyzed in detail, and several multifractal characteristic parameters such as the symmetry degree Rτ of the mass index, the multifractal singularity spectrum width Δδ, the multifractal singularity spectrum asymmetric index Rσ and etc. , were defined. The experimental analysis showed that the conventional radar returns from three types of aircraft targets containing jets, propeller aircrafts and helicopters, had significantly different multifractal characteristic curves, and the three multifractal characteristic parameters could be used as effective features for aircraft target classification and recognition in the conventional radar. '关键词
常规雷达/多重分形/质量指数/奇异谱/目标分类Key words
conventional radar/ multifractal/ mass index/ singularity spectrum/ target classification分类
信息技术与安全科学引用本文复制引用
李秋生,袁新娣,管立新..常规雷达飞机目标回波多重分形特性分析[J].安徽大学学报（自然科学版）,2012,36(5):47-54,8.基金项目
国家自然科学基金资助项目(61071206) （61071206）
