基于自适应门限的快速分组同步技术

Fast Packet Synchronization Technology Based on Adaptive Threshold

为了解决应用在高速突发通信场合的分组同步问题,介绍了一种基于自适应门限的快速分组同步技术,提出了基于自适应门限的算法和基于可编程逻辑器件(FPGA)的软件设计结构,给出了同步序列及其相关性仿真结果,分组同步相关峰和门限的定量分析和这种自适应门限算法在不同信噪比下的仿真曲线。该技术相比传统的分组同步搜索性能有明显的改善,具有同步序列短、传输效率高、实时性强、门限自适应以及同步稳定可靠等特点。

The paper introduces a fast packet synchronization technology applicable for high-speed burst communication. It can response the station of channel effectively and in real-time. It is different from traditional packet synchronization in that the performance of communication has been evidently improved. It features short synchronizing sequence, high transmission efficiency, strong real-time property, adaptive threshold, stability and reliability. The paper presents the simulation result of correlation about the synchronizing sequence, the algorithm of adaptive threshold and the design of software based on FPGA. Finally, the sinmlation curves of this algorithm for different SNRs are presented.