基于PSP算法的UQPSK信号、OQPSK信号的单通道盲分离研究  

Algorithm of UQPSK Signal、OQPSK Signal Single Channel Blind Separate Based on Per-Survivor Processing

作　　者：张洋[1] 高勇[1] 

机构地区：[1]四川大学电子信息学院,成都610065

出　　处：《无线通信技术》2016年第2期11-14,19,共5页Wireless Communication Technology

摘　　要：针对卫星通信系统中常用的UQPSK、OQPSK调制信号,在非协作通信无任何先验知识的背景下,本文采用信息序列与信道参数联合估计的PSP算法,解决了两路UQPSK信号混合、两路OQPSK信号混合的单通道盲分离问题。仿真结果表明,该算法能很好的从混合信号中分离出两路信号,并估计出两路信号的信息序列。Satellite communication systems commonly used QPSK,OQPSK modulation signal. Under the background of non - cooperative communication without any prior knowledge , the proposed ap- proach uses a per - survivor processing （PSP） algorithm which is joint estimation of channel impulse responses （CIR） and data symbols to solve single - channel mixtures of two UQPSK signals and single - channel mixtures of two OQPSK signals. The simulation results show that this algorithm can effectively complete blind separate from two mixed signal and estimates information sequence signal.

关 键 词：UQPSK OQPSK PSP算法 盲分离 

分 类 号：TN927[电子电信—通信与信息系统]