连续相位调制信号的功率谱及带宽特性研究  

Study on Power Spectrum and Bandwidth Characteristics of Continuous Phase Modulation Signal

作　　者：马雯[1] 

机构地区：[1]中国电子科技集团公司第五十研究所,上海200063

出　　处：《现代电子技术》2010年第5期39-41,共3页Modern Electronics Technique

摘　　要：连续相位调制(CPM)的调制参数对信号的功率谱特性具有直接的影响。研究两者之间的关系,对优选调制参数,改善CPM的调制性能具有重要的指导意义。给出基于经典谱估计的CPM信号功率谱密度估计方法,该方法适用于任意形式的CPM信号,可利用FFT快速实现。利用该方法,仿真并分析了各种调制参数对CPM信号功率谱及带宽的影响,为实际应用中调制参数的选择提供了参考。The modulation parameters of Continuous Phase Modulation（CPM） have direct influence on the Power Spectral Density（PSD） of CPM signal. In order to optimize the modulation parameters and improve the modulation performance,it is necessary to study the relationship between the modulation parameters and spectral properties of CPM signal. The PSD estima- tion method based on classical spectral estimation is proposed,which is applicable to CPM signal of arbitrary form,and can be realized by using FFT algorithm. Using this method, the influence of various modulation parameters on the PSD and bandwidth characteristics of CPM signals are simulated and analyzed, references for the selection of modulation parameters are provided in real applications.

关 键 词：连续相位调制 调制参数 功率谱密度 FFT 

分 类 号：TN911.6[电子电信—通信与信息系统]