随机信号的多分辨率模型  

Random Signal Multiresolution Model

作　　者：黄洪全[1,2] 何子述[1] 方方[2] 龚迪琛[2] 

机构地区：[1]电子科技大学电子工程学院,四川成都611731 [2]成都理工大学地学核技术四川省重点实验室,四川成都610059

出　　处：《原子能科学技术》2010年第7期887-892,共6页Atomic Energy Science and Technology

基　　金：国家教育部博士点基金资助项目(20060616010)

摘　　要：对统计特性较为复杂的随机信号,往往难以用准确的数学表达式进行描述。本工作以核随机信号为例,利用小波分析方法对其进行分解,提取多分辨率模型,并利用该模型和随机抽样方法对核随机信号的统计特性进行模拟。结果表明,本工作所用的模型方法可以任意精度描述信号的随机特性,并具有参数较少的特点。It is difficult to describe the relatively complicated statistical properties of random signal by accurate mathematical expression.In this paper,nuclear random signal was decomposed by wavelet analysis method,and the multiresolution model was obtained.Its statistical properties were simulated by this model and random sampling method.The results show that this model can describe the statistical properties of random signal with arbitrary accuracy,and its parameters are less.

关 键 词：随机信号 统计特性 小波 多分辨率模型 

分 类 号：TN782[电子电信—电路与系统] TL82[核科学技术—核技术及应用]