摘要
在突发OFDM通信系统中,帧同步起着至关重要的作用,帧同步方案优劣直接影响着整个通信系统的性能。本文针对呈现强干扰、恶劣时变、严重的频率选择等特性的电力线信道,提出一种能量检测+精确同步的帧同步方案。设计了能量检测和精确同步的数字实现算法,并给出仿真结果,最后对设计方案硬件实现需求进行了评估。
In the OFDM burst communication system,frame synchronization plays a vital role and directly affects the performance of the entire communication system.This paper proposed a frame synchronization scheme with energy detection and accurate synchronization for the power channel which presents strong interference,poor time-variation and severe frequency selection.The digital algorithm for energy detection and accurate synchronization is designed,and the simulation results and the needs assessments of the hardware implementation are given.
出处
《实验室研究与探索》
CAS
北大核心
2012年第12期75-77,241,共4页
Research and Exploration In Laboratory
关键词
突发通信
正交频分复用
帧同步
能量检测
burst communication
OFDM
frame synchronization
energy detection
