Initial synchronisms of CDMA communication system receiver include PN code sync, symbol sync, frame sync, sync of scramble code, and so on.
CD MA通信系统接收机的初始同步包括PN码同步、符号同步、帧同步、和扰码同步等。
A novel symbol synchronization is presented with frame synchronization of PPM. On the basis of analyzing frame sync code pattern and length, a PPM frame scheme is designed.
在分析帧同步码型和长度要求的基础上，设计了一种PP M帧结构，提出了利用帧同步来实现PPM符号同步的方法。
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