摘要
                
                    序列复杂度的稳定性是反映混沌伪随机序列特性的重要指标之一。在序列原生系数的基础上,提出重量原生系数的定义,并使用原生系数的绝对变化量和相对变化量作为衡量混沌伪随机序列复杂度稳定性的指标,得出了一些相关结论。对几类常用混沌伪随机序列的仿真证明,所提出的衡量指标能够有效区分混沌短序列复杂度的稳定性。
                
                Complexity stability of sequences is one of the important characteristics of chaotic pseudorandom sequences. Based on the definition of the index in primitive production process (IPP) of a sequence, the concept of weight IPP was proposed. Moreover, the absolute change and the relative change of IPP were recommended to measure the complexity stability of chaotic pseudorandom sequences and some conclusions were drawn. Numerical simulations on several chaotic pseudorandom sequences indicate that the proposed indices are effective in measuring complexity stability of short chaotic sequences.
    
    
    
    
                出处
                
                    《计算机应用》
                        
                                CSCD
                                北大核心
                        
                    
                        2009年第11期2946-2947,3017,共3页
                    
                
                    journal of Computer Applications
     
            
                基金
                    广东省自然科学基金资助项目(06025729)
            
    
                关键词
                    混沌序列
                    0-1平衡度
                    近似熵
                    线性复杂度
                
                        chaos sequence
                         0-1 balance degree
                         approximate entropy
                         linear complexity
                
     
    
    
                作者简介
(jinmei_liu@126.com)刘金梅(1975-),女,山东昌乐人,讲师,博士研究生,主要研究方向:信息安全、混沌保密通信;
丘水生(1939-),男,广东梅县人,教授,博士生导师,主要研究方向:非线性系统理论、混沌保密通信、功率电子学。