元胞自动机数字噪声发生器性质与实现研究  

Study on Performance and Implementation of Cellular Automata Digital Noise Generator

作　　者：李春霞[1] 葛锐[1] 王飞雪[1] 

机构地区：[1]国防科学技术大学ATR国防重点实验室,长沙410073

出　　处：《信号处理》2003年第5期399-403,共5页Journal of Signal Processing

摘　　要：提出并研究了一种新型硬件数字噪声源——元胞自动机数字噪声发生器。在介绍元胞自动机随机数产生方法的基础上,着重在产生噪声的随机性方面将其和同余法(LCG)对比,对产生的序列做了均匀分布的统计检验以及包含比特相关和实数序列相关的相关性分析;在硬件实现方面,将其和线性移位寄存器(LFSR)方法做了对比,并探讨了其硬件实现中的具体问题。结果表明,该方法实现比LFSR方法还简单,产生噪声的随机性比LCG方法更高或相当,不失为数字噪声源设计的优选方案。The cellular automata digital noise generator is presented and studied as a new hardware digital noise resource. After the introduction of the method and its property, comparison of the randomness property of uniformity and correlation, which includes both the bit relation and the real number serial relation, is made between the sequences generated by this method and the Linear Congruent Generators (LCG) method. Then in respect of hardware implementation, the presented method is compared with the Linear Feedback Shift Register (LFSR) Generators, and its concrete hardware implementation is briefly explored. The results show that this method is easier to implement than LFSR and can achieve higher or comparable randomness by compared with LCG, thus it is a choice scheme for the design of digital noise source.

关 键 词：元胞自动机 数字噪声发生器 性质 随机性 信号处理 

分 类 号：TN911.7[电子电信—通信与信息系统]