HF信道的OFDM系统联合定时和频移估计技术

Joint Estimation of Time and Frequency Offset of OFDM in HF Channel

提出了 1种应用于高频信道的突发方式下的联合同步和频偏估计方案。方案中报头设计在循环前缀的位置使用了新的格式 ,采用了新的报头方式 ,在 3k Hz音频带宽内的仿真表明 ,方案在中低速率数据传输中具有隐蔽性高、抗干扰能力强等优点 。

A robust symbol timing and carrier frequency synchronization scheme in HF channel is presented. New information is placed in the cyclic prefix, and new training symbol pattern is provided. Simulation results in voice frequency show that the joint estimation of time and frequency offset may be widely used in middle and low data rate transmission system in HF channel.