一种改进型的CMMB接收机信道估计算法  

An Improved Channel Estimation Method for CMMB System

作　　者：蒋和[1] 王俊涛[2] 王雷[2] 

机构地区：[1]南京师范大学数学科学学院,江苏南京210046 [2]南京理工大学电光学院,江苏南京210094

出　　处：《测试技术学报》2013年第3期238-241,共4页Journal of Test and Measurement Technology

摘　　要：为了提高CMMB接收机的性能,本文在研究和总结了常规信道估计算法的基础上,提出了一种改进型的CMMB信道估计的插值算法,并在MATLAB仿真平台上进行了仿真验证.与传统内插算法不同,该算法在时域和频域分别进行一阶的线性插值,提高了CMMB系统的信道估计性能.To improve the performance of CMMB receiver, we proposed an improved channel estimation interpolation algorithm for CMMB system on the basis of the research and summary of the conventional channel estimation algorithms, simulated and verified the algorithm at MATLAB simulation platform. Unlike traditional interpolation algorithm, the algorithm uses onerder linear interpolation respectively in the time domain and frequency domain, and improves the channel estimation performance of the CMMB system.

关 键 词：CMMB OFDM 信道估计 导频 插值 

分 类 号：TN934.3[电子电信—信号与信息处理]