摘要
OFDM技术作为一种适用于高速无线传输的调制技术近年来越来越受到关注,但其显著问题是对时频偏移十分敏感.提出一种基于PN序列的OFDM系统的同步过程,包括符号同步,载波同步和采样率同步.仿真结果证明这种同步体制具有较好的同步精度.
The OFDM technique has recently gained increased interest as a modulation scheme for high-speed wireless transmission. However, The principal weakness of OFDM is its sensitivity to time and frequency offsets. In this paper, a synchronization scheme based on PN sequence was presented, include symbol synchronization,carrier synchronization and sample rate synchronization. The simulation results show that it has better synchronization precision.
出处
《云南民族大学学报（自然科学版）》
CAS
2005年第1期43-45,共3页
Journal of Yunnan Minzu University:Natural Sciences Edition
基金
国家科技部科研基金资助(编号:01C26215110971).
