摘要
简要介绍SD-method调制方法及其与一般OFDM方法的关系,描述了基于导频信道估计的系统模型,分析并仿真验证了多径衰落信道模型下,SD-method系统的信道估计算法,对LS估计算法和MMSE估计算法的性能进行了对比,仿真结果验证了理论分析的正确性。
SD-method and the relations between it and general OFDM simply are introduced, given a description of the system model for channel estimation based on pilot symbol. The channel estimation algorithms for SD-method system over the muhipath fading channel model MMSE are compared. The results of simulation are given are analyzed and verified, and the functions of LS and to corroborate the theoretical analysis.
出处
《科学技术与工程》
2008年第13期3478-3481,3485,共5页
Science Technology and Engineering
基金
国家自然科学基金项目(60425413)资助
