摘要
本文对OFDM体制下DRM系统中基于导频辅助调制(PSAM)的信道估计器进行了分析,描述了数字调幅广播中导频单元的分布,在DRM系统基础上分别结合最小平方准则(LS)和线性最小均方误差准则(LMMSE),提出了信道估计方法,并在Matlab环境下,使用Watterson信道模型进行了蒙特卡罗模拟,给出了性能比较。
Based on PSAM in DRM system, the OFDM channel estimators are analyzed, and the distribution of pilot references in DRM system is described in this paper. A channel estimation method related to DRM system is proposed by combining LS (least square) and LMMSE (linear minimum mean-squared error) rules. A Monte Carlo simulation is implemented by using Watterson channel model in Matlab system, and the comparison on performance is presented.
出处
《北京电子科技学院学报》
2004年第4期9-13,共5页
Journal of Beijing Electronic Science And Technology Institute
基金
国家自然科学基金项目(60072013)资助
