摘要
由于信号所受噪声的随机特性各种各样,为了能更形象模拟实际所受噪声的随机性,设计了一种可参数化的m序列,以此来得到多种随机性的序列。本文设计的m序列发生器采用反馈移位寄存器实现,其可设置参数包括两方面:级数和反馈系数,其中级数有4种设置,反馈系数有3种设置。仿真结果表明:在时钟信号的作用下,级数、反馈系数设置不同,系统输出序列的随机性不同,最后一共可得12种随机特性序列。
In order to imitate the randomness of the actual noise more vividly,a parameterized m-sequence is designed to obtain a variety of randomness sequences.The m-sequence generator designed in this paper is implemented by a feedback shift register.Its settable parameters include two aspects:series and feedback coefficient.Where the series have four types and the feedback coefficient have three types.The simulation results show that under the action of clock signal,the randomness of output sequence varies with the types of series and feedback coefficient.Finally,the system can obtain a total of 12 random characteristic sequences.
作者
杨湲
YANG Yuan(College of Electronic Information Engineering,China West Normal University,Nanchong 637009,China)
出处
《南阳理工学院学报》
2019年第4期49-53,共5页
Journal of Nanyang Institute of Technology
关键词
随机噪声
M序列
级数
反馈系数
可参数化
random noise
m-sequence
series
feedback coefficient
parametric
