摘要
对多路径传播条件下 QPSK扩频多径信号的统计特性进行了分析 ,给出了多径接收信号的包络和相位的概率分布特性 ;并在相干和非相干接收情况下 ,分析了多径信号的识别和获取方法 ;在此基础上 ,深入研究了导频辅助的相干 Rake接收和 M元正交调制的非相干 Rake接收技术。
Analyses the statistical performance of QPSK spreading spectrum multipath signals when it was transmited in multipath,and presents the probability distribution performance of the amplitude and phase of multipath singals.Also analyses the methods of identifying and capturing maltipath signals when it was received in coherent and noncoherent reception methods.Based on the foundation, this paper go deep into researching the technology of pilot-aided coherent Rake reception and orthogonal M-ary noncoherent Rake reception.
出处
《现代电子技术》
2002年第10期60-63,共4页
Modern Electronics Technique
