直接序列扩频通信系统，实现PN码同步，采用串行滑动相关捕获相关峰-Direct sequence spread spectrum communication system, and PN code synchronization, sliding-related capture serial correlation peak

dsss有关的位同步帧同步数字锁相法实现位同步-dsss the bit synchronization method to achieve frame synchronization bit synchronous digital lock