现代电子技术2024，Vol.47Issue(7)：33-36,4.DOI:10.16652/j.issn.1004-373x.2024.07.005
一种宽带非线性信道校正方法
A nonlinear wideband channel correction method
刘景元 1王威2
作者信息
- 1. 西南电子技术研究所,四川 成都 610036
- 2. 北京跟踪与通信技术研究所,北京 100094
- 折叠
摘要
Abstract
In view of the performance deterioration caused by channel nonlinearity when high-speed data modem receives broadband high-order modulation signals,a nonlinear wideband channel correction method base on two-layer adaptive equalization network is proposed for the high-speed data demodulators.The Volterra nonlinear pre-correction coefficient is obtained by recursive least square.Then,an adaptive baseband equalizer is used to remove the residual channel effect,so as to improve the capture trace performance of the high-rate data demodulator,and enable the demodulator to achieve stable 2.4 Gb/s 16 QAM signal reception in engineering applications.关键词
高速数传/信道校正/自适应均衡网络/Volterra非线性均衡/递归最小二乘法/自适应基带均衡器Key words
high-rate data transmission/channel correction/adaptive equalization network/Volterra nonlinear equalization/recursive least square/adaptive baseband equalizer分类
电子信息工程引用本文复制引用
刘景元,王威..一种宽带非线性信道校正方法[J].现代电子技术,2024,47(7):33-36,4.
