A Random Nonstationary Pulse Train Model

作     者：Leon Cohen Leon Cohen

作者机构：Department of PhysicsHunter College of the City University of New York695 Park Ave.New YorkNY 10065USA 

出 版 物：《Journal of Beijing Institute of Technology》 (北京理工大学学报（英文版）)

年 卷 期：2021年第30卷第3期

页      面：228-237页

核心收录：

学科分类：02[经济学] 0202[经济学-应用经济学] 020208[经济学-统计学] 07[理学] 0714[理学-统计学（可授理学、经济学学位）] 070103[理学-概率论与数理统计] 0701[理学-数学] 

主　　题：nonstationary process mean and autocorrelation function time-frequency distribution Gaussian waves 

摘      要：A simple and mathematically tractable model of a nonstationary process is *** process is the sum of waves where the parameters of the waves are *** expres-sions for the mean and autocorrelation function at each position as a function of time are *** the case of infinite time,the model evolves into a stationary *** time-frequency distri-bution at each position is also *** explicit example is given where the initial waves are *** case where there is dispersion in the propagation is also discussed.