基于alpha稳定分布的脉冲噪声模拟方法研究  

Research on Simulation Method of Impulsive Noise Based on Alpha-stable Distribution

作　　者：李召瑞 陈博航 吴晓蓓[1] 郭宝锋 LI Zhaorui;CHEN Bohang;WU Xiaobei;GUO Baofeng(School of Automation,Nanjing University of Technology,Nanjing 210094,China;Shijiazhuang Campus Army Engineering University of PLA,Shijiazhuang 050003,China)

机构地区：[1]南京理工大学自动化学院,南京210094 [2]陆军工程大学石家庄校区,石家庄050003

出　　处：《火力与指挥控制》2022年第7期14-19,25,共7页Fire Control & Command Control

基　　金：河北省自然科学基金资助项目(F2019506031,F2019506037)。

摘　　要：度量通信系统在一定信噪比条件下的性能,真实、稳定、可控的噪声环境是必不可少的。当前,脉冲性噪声已成为战场噪声的主要成分,传统以高斯分布作为噪声模型与实际通信环境并不匹配,造成通信系统性能度量不准确。以适合模拟脉冲类噪声的α稳定分布作为数学经验模型,研究噪声模拟方法。分析α稳定分布模型的性质,通过分析概率分布,确定其与脉冲噪声的匹配性,研究α稳定分布随机数生成方法和参数估计方法,以及参数估计精度验证方法,依据雷达、通信装备固定工作场景的采集数据,进行参数估计,确定参数取值特征与范围,形成针对性更强的环境噪声模拟方法与手段。It is necessary to measure the performance of communication system under a certain SNR and in a real,stable and controllable noise environment.At present,impulsive noise has become the main component of battlefield noise.Taking the traditional Gaussian distribution as the noise model does not match the actual communication environment,resulting in inaccurate measurement of communication system performance.Theαstable distribution suitable for simulating impulsive noise is used as a mathematical experience model to study the noise simulation method.Firstly,the property ofαstable distribution model is analyzed,the matching betweenαstable distribution and impulsive noise is determined by analyzing probability distribution.The method of generating random number and parameter estimation method ofαstable distribution are studied,and the accuracy verification method of parameter estimation is studied,according to the acquired data of radar and communication equipment in fixed scenes,the feature of value selection and therange of the parameters are determined,more targeted environmental noise simulation method and means are formed.

关 键 词：噪声 通信系统 Α稳定分布 参数估计 精度验证 

分 类 号：TJ01[兵器科学与技术—兵器发射理论与技术] TN972[电子电信—信号与信息处理]