Coarse Symbol Timing Synchronization (CSTS) algorithm for OFDM systems that is robust to a multi-path fading channel

为了减少无线信道中存在的多径和频偏对中国移动多媒体广播(CMMB)系统传输信号同步的影响，本文结合CMMB标准协议规定的具体帧结构，分析了符号同步对系统的影响，讨论了传统最大似然(ML)算法的优缺点，并基于文献中的无数据辅助算法，提出了一种适合该系统并且复杂度较低的粗符号定时同步算法。仿真结果表明，在AWGN及多径信道环境下，新算法可以有效克服传统算法相关峰不明显的缺陷，其估计性能更好-In order to reduce the influence for synchronization of

Timing Synchronization for 802.11a WLANs under Multipath Channels In the Wireless Local Area Network (WLAN) standard adopted by the IEEE 802.11a standardization group, each data packet starts with a preamble, which consists of ten short train