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基于余弦函数的部分响应CPM信号优化方法研究

发表时间:2019-12-31  浏览量:305  下载量:19
全部作者: 贾佩松,薛伟,王晓琴
作者单位: 哈尔滨工程大学信息与通信工程学院
摘 要: 针对连续相位调制(continuous phase modulation,CPM)系统的特性,本文研究了基于余弦函数建模对部分响应CPM信号基带码元进行优化,并通过人为引入码间干扰提高最优化能量谱信号的方法,实现了部分响应CPM信号的基带码元优化。应用Matlab软件绘制了基带信号的相位变化轨迹及归一化能量谱,结果表明所得信号的频谱特性具有较大的改善,达到了预期的目标。
关 键 词: 通信技术;连续相位调制;余弦函数;码间干扰;频谱特性
Title: Optimization method research of partial response CPM signal based on cosine function
Author: JIA Peisong, XUE Wei, WANG Xiaoqin
Organization: College of Information and Communication Engineering, Harbin Engineering University
Abstract: In allusion to the characteristics of continuous phase modulation (CPM) system, baseband element optimization of partial response CPM signal was studied based on cosine function in this paper. By the method of artificially introducing inter symbol interference (ISI) to improve the optimized energy spectrum signal, the baseband element optimization of partial response CPM signal had been realized. Matlab software was applied to plot the phase change trajectory and normalization energy spectrum of baseband signal. And the results showed that the spectrum characteristics of the signal had been greatly improved to achieve the desired goal.
Key words: communications technology; continuous phase modulation (CPM); cosine function; inter symbol interference (ISI); spectrum characteristic
发表期数: 2019年12月第6期
引用格式: 贾佩松,薛伟,王晓琴. 基于余弦函数的部分响应CPM信号优化方法研究[J]. 中国科技论文在线精品论文,2019,12(6):1000-1007.
 
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