摘要
随机数发生器广泛用于系统仿真、测试、信息安全、密码学等诸多领域,本文在介绍CNNs电路模型概念基础上,利用3元CNNs构造了混沌系统。针对该混沌系统系统变量随机性较差的情况,给出了系统变量局部放大和参数扰动的改进方案,得到了随机性能较好的变量,最后通过仿真分析证明了所提出方法的有效性。
Random number generator is widely used in system simulation,testing,information security,cryptography and other fields;this paper introduces the concept of CNNs circuit model and constructs a chaotic system based on the 3-cells CNNs.For the of unsatisfactory statistical performance of pseudorandom number sequences generated by the chaotic methods,the methods of local magnified and time-varying parameters were given,and good random variables are obtained.Computer simulations show the effectiveness of the proposed method.
出处
《北京电子科技学院学报》
2010年第4期25-29,共5页
Journal of Beijing Electronic Science And Technology Institute
基金
国家自然基金(No.60773120)
