摘要
针对突发分组模式的OFDM传输系统,提出了一种基于加权CAZAC序列的OFDM系统同步方案,在时域实现了符号定时和频偏估计。仿真结果显示定时精确稳定,频偏估计范围大、均方差小,在低信噪比和量化后表现优异,减小了硬件设计的复杂性。
A new method for OFDM synchronization based on training sequence for system of burst transmission mode is proposed. Symbol timing and frequency offset estimation are accomplished in time domain. Simulation results show it has an excellent accuracy timing, large estimation span and small MSE for frequency offset estimation. Additionally the method has strong reliability and stability, outstanding performance in low SNR or after being quan- tiffed, and low complexity of hardware design.
出处
《电视技术》
北大核心
2014年第1期132-135,共4页
Video Engineering
基金
国家重大科技专项03专项(2012ZX03004)
