FQPSK的调制特性及性能仿真  

FQPSK Modulation Characteristic and Performance Simulation

作　　者：游莎莎[1] 刘胜利[1] 李国民[1] 

机构地区：[1]北京跟踪与通信技术研究所,北京100094

出　　处：《无线电工程》2008年第2期35-37,共3页Radio Engineering

摘　　要：FQPSK是针对高频谱效率和高功率效率要求产生的一种调制方式。主要研究了FQPSK的调制原理,并利用Systemview进行仿真,计算了其功率谱密度(PSD)。其误码率特性采用Matlab仿真进行了分析研究。仿真结果表明,FQPSK的波形具有恒包络,频谱具有主瓣窄、旁瓣滚降快的特点。FQPSK is a modulation technique for high spectrum efficiency and high power efficiency requirement. The technical principle of the modulation system is analyzed. The simulation and computation of its power spectral density is realized by Systemview and relative characteristics are simulated by madab.The simulation results show that FQPSK has the features of constant waveform, narrower main lobe and faster side lobe rolloff.

关 键 词：IJF—OQPSK FQPSK 功率谱密度 网格编码 

分 类 号：TN951[电子电信—信号与信息处理]