摘要
研究在突发通信系统中的帧同步信号检测方法和一种新的帧同步机制。针对常规的长帧同步序列相关特性不佳的问题,借鉴巴克码的思想,提出了一种分别采用周期相关和非周期相关的二次同步方案,从而实现在极低信噪比(-10dB)下的同步。新的帧同步序列相关特性明显好于传统的一次同步序列的特性。在突发通信系统中,采用此方案序列作为帧同步序列,其可靠性更高,帧同步建立时间较短,性能优异。
This paper burst communication system. based on the coding idea o presents a new frame synchronization scheme and the signal detection method for the Because the correlation property of conventional frame synchronization is non-ideal, f Barker code, a double synchronization scheme is proposed with the periodic and non-periodic correlation respectively. And this scheme is suitable for very low SNR （-10dB） situation. The correlation property of this new frame synchronization sequence is obviously better than the old one. In the burst communication system, this design of new frame synchronization gives high reliability and shorter frame synchronization setup time.
出处
《通信技术》
2009年第12期204-206,共3页
Communications Technology
关键词
突发通信
帧同步
巴克码
同步序列
相关特性
burst communication
frame synchronization
Barker code
synchronization sequence
correlation property
