PCMA系统相位调制信号的谱特征分析  

Spectrum Feature Analysis for PCMA Signals with Phase Modulation

作　　者：张冬玲 张君[1] 欧阳喜[1] 葛临东[1] 

机构地区：[1]信息工程大学信息工程学院,河南郑州450002

出　　处：《信息工程大学学报》2011年第2期184-187,220,共5页Journal of Information Engineering University

基　　金：国家自然科学基金资助项目(61072046)

摘　　要：文章对PCMA系统相位调制信号的谱特征进行分析,重点从数学角度推导了OQPSK和π/4-QPSK的谱特征,并分析了谱特征在PCMA信号接收中的应用价值。仿真实验表明,BPSK、OQPSK和π/4-QPSK混合信号在信噪比10dB以上时可以获得很好谱线提取率,具有良好的稳健性。Spectrum line feature of PCMA signals with phase modulation is presented in this paper,particularly the features of OQPSK and π/4QPSK signals are derived in terms of mathematic theory.Furthermore some potential applications of these spectrum line features are explained also.Simulation results show that when the SNR is not lower than 10 dB,the percentage of correct extraction of BPSK、OQPSK and-QPSK signals is high with good robustness.

关 键 词：PCMA OQPSK Π/4-QPSK 谱特征 二次方谱 四次方谱 

分 类 号：TN911.3[电子电信—通信与信息系统]