摘要
针对椭圆球面波函数(Prolate Spheroidal Wave Functions,PSWF)脉冲调制信号的同步问题,通过分析PSWF脉冲信号的固有时频特性,提出了一种帧同步设计方法.发送端采用伪随机序列调制具有单峰包络特征的PSWF脉冲设计同步头序列,接收端通过包络检波器提取单峰包络函数构造具有尖锐自相关特性的新同步头序列,再捕获同步信号.
A frame synchronization designing method is proposed for prolate spheroidal wave function（PSWF） modulated signal. By analyzing the PSWF pulse inherent characters, the band-pass frame synchronization sequence is designed by PS code modulated PSWF signal at transmitter, which is with unimodality in its envelope. An envelope detector constructs the received synchronization sequence into a new frame synchronization sequence,which is with unimodality in its auto-correlation at receiver,and then the synchronization signal is captured.
出处
《电波科学学报》
EI
CSCD
北大核心
2013年第6期1088-1092,共5页
Chinese Journal of Radio Science
关键词
通信
脉冲调制
帧同步
communication pulse modulation frame synchronization
