空间目标RCS序列的盒维数分析  

The Box Dimension of RCS Series of Space Object

作　　者：肇刚[1] 曹占辉[1] 李言俊[1] 

机构地区：[1]西北工业大学航天学院,陕西西安710072

出　　处：《计算机仿真》2009年第3期69-72,共4页Computer Simulation

基　　金：国家自然科学基金(60575103);高等学校博士点学科专项科研(20060699024)

摘　　要：针对采用常规理论从空间目标RCS序列中提取有效特征非常困难的问题,在空间目标RCS序列的研究中引入非线性理论的盒维数法。分析影响空间目标RCS序列产生混沌的机理,运用盒维数理论研究空间目标RCS序列,基于计算得到的盒维数探讨空间目标RCS序列的混沌特性。实测数据计算结果表明,与旋转目标相比,三轴稳定目标RCS序列所含随机噪声成分较多,混沌成分较少,接近随机噪声。这与实际分析的情况相符合,证明了方法的有效性,为空间目标的识别与分类提供了一条新的途径。To solve the problem that it is difficult to choose features from the Radar Cross Section （RCS） based on conventional theory, the box dimension of the nonlinear theory is introduced into the research of RCS of space object. The box dimension is used to analyze the RCS and research the chaotic features. The result shows that the RCS of the triaxial stabilization target has more random noise and less chaos than that of rotary object. So it is similar to random noise. The result is in line with the actual analysis and proves the effectiveness of the method. The method provides a new way for the recognition and classification of space objects.

关 键 词：空间目标 雷达散射截面序列 盒维数 

分 类 号：V556.6[航空宇航科学与技术—人机与环境工程]