一种基于FPGA的AWGN信号的实现
n Implementation of AWGN Based on FPGA
本文给出了一种基于FPGA的加性高斯白噪声信号（Additive White Gaussian Noise AWGN信号）的生成算法，给出了使用ModelSim仿真的数字域仿真结果。该AWGN信号的实现主要包括两个重要环节：产生具有均匀分布特性的噪声信号；由均匀分布的信号产生具有高斯分布特性的加性白噪声信号。均匀分布信号是通过移位寄存器产生伪随机m序列，间隔一定的时刻抽取某些状态值获得。由中心极限定理，多个随机序列相加其和值的分布趋近于一个正态分布。由此得到AWGN信号。
his pape presents a kind of algorithm that aimd to generate Additive White Gaussian Noise signal based on FPGA ,And gives the results of using ModelSim simulation in the digital domain.The realization of the AWGN signal include two maily steps.Firstly,Producing the noise with uniform distribution characteristics; Generating the noise with uniform distrbution characteristics use shift registers.It was called m sequences.It can be generated by extracting some sate of shift registers. By the central limit theorem. Adding multiple these signals and the result can tend to AWGN signas.Then can get AWGN signals.
王勇、马有德
微电子学、集成电路电子电路通信
m序列随机信号FPGA中心极限定理
M sequenceRandom signalsFPGACentral Limit Theorem
王勇,马有德.一种基于FPGA的AWGN信号的实现[EB/OL].(2013-07-25)[2025-08-21].http://www.paper.edu.cn/releasepaper/content/201307-345.点此复制
评论