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。
On the basis of analyzing MPPM code pattern and length, a super-frame synchronization method using combinational Barker code is designed.
在分析MPPM码型和帧长的特点基础上，设计了组合巴克码做为MPPM超帧同步码的方法。
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