上海航天（中英文）2024，Vol.41Issue(2)：62-66,80,6.DOI:10.19328/j.cnki.2096-8655.2024.02.008
多径信道下基于恒模算法的遥测信号盲均衡
Blind Equalization of Telemetry Signals in Multipath Channels Based on Constant Modulus Algorithm
王刚 1杨钖 1韩明 2李光1
作者信息
- 1. 太原卫星发射中心,山西 太原 030001
- 2. 北京宇航系统工程研究所,北京 100076
- 折叠
摘要
Abstract
Launch vehicles are vulnerable to multipath fading during the static tests in the tower,which leads to intersymbol interference in the telemetry signals.In this paper,the constant modulus algorithm(CMA)is used to carry out blind equalization research on the pulse code modulation/frequency modulation(PCM/FM)telemetry signals in multipath channels.Theoretical analysis and MATLAB simulation are carried out for the intersymbol interference in the telemetry channels,and a blind equalization function test platform is built to carry out experimental verification.The results show that the CMA has a fast convergence speed and a low bit error rate(BER),and has good robustness and practicability to the multipath interference.关键词
多径效应/遥测信号/恒模算法/盲均衡/误码率Key words
multipath effect/telemetry signal/constant modulus algorithm(CMA)/blind equalization/bit error rate(BER)分类
信息技术与安全科学引用本文复制引用
王刚,杨钖,韩明,李光..多径信道下基于恒模算法的遥测信号盲均衡[J].上海航天（中英文）,2024,41(2):62-66,80,6.
