空军工程大学学报2025，Vol.26Issue(4)：68-74,7.DOI:10.3969/j.issn.2097-1915.2025.04.008
多径信道下最佳接收机研究
Research on Optimal Receivers in Multipath Channels
董鹏宇 1向新 1王鹏 1梁源 1李春辉 1王瑞 1李桥1
作者信息
- 1. 空军工程大学航空工程学院,西安,710038
- 折叠
摘要
Abstract
With the increasing needs of data transmission rate in wireless communication,it has become a job with more challenge to study how to optimize signal detection from noise in multipath channels and to construct the best receiver in keeping with the certain criteria.From the point of view of optimal receiver design,the function of matching filter is derived and analyzed deeply,and a method of solving the whiten-ing filter by means of minimum phase channel is proposed.The effectiveness and robustness of the se-quence detection receiver scheme for eliminating inter-code crosstalk are verified,providing a performance limit reference for receiver design in multi-path channels.The simulation results show that:the perform-ance of sequence detection based on Viterbi algorithm is superior to that of MMSE equalizer,even more than 10 dB in the bad channel with spectrum zero.For the number of less than 5 paths,the sequence de-tection method based on Viterbi algorithm can not only be adoptable but its computational complexity can also be acceptable.关键词
多径信道/码间串扰/最佳接收机/维特比算法/匹配滤波器/白化滤波器Key words
multipath channel/inter-symbol interference/optimal receiver/Viterbi algorithm/matching fil-ter/whitening filter分类
航空航天引用本文复制引用
董鹏宇,向新,王鹏,梁源,李春辉,王瑞,李桥..多径信道下最佳接收机研究[J].空军工程大学学报,2025,26(4):68-74,7.
