摘要
针对高速高动态宽带卫星信道中线性失真和非线性失真并存的问题,提出一种基于新型级联结构的宽带非线性盲均衡算法。算法通过构建一种线性与非线性级联的滤波器算法结构,以同时矫正宽带卫星信道带来的线性畸变和非线性畸变。为验证算法的有效性,在10 Gbit/s高速数传接收机平台进行了实验。实验结果表明,相比传统的线性均衡算法,该算法可以同时矫正信道的线性畸变和非线性畸变,工程应用价值高。
To address the problem of coexistence of linear and nonlinear distortion in high-speed and high-dynamic wideband satellite channels,a wideband nonlinear blind equalization algorithm based on a novel cascade structure is proposed.The proposed algorithm can simultaneously correct the linear and nonlinear distortion caused by a wideband satellite channel by constructing an extended cascade structure of FIR linear filter and nonlinear function.In order to verify the effectiveness of the algorithm,experiments are carried out on a 10 Gbit/s high-speed data transmission receiver platform.Experimental results indicate that compared with the conventional linear equalization algorithm,the proposed algorithm can correct both linear and nonlinear channel distortion,and has high engineering application value.
作者
刘洋
LIU Yang(Southwest China Institute of Electronic Technology,Chengdu Sichuan 610036,China)
出处
《通信技术》
2025年第2期123-127,共5页
Communications Technology
基金
成都市科技项目技术创新研发项目(重点项目)(2024-YF08-00106-GX)。
关键词
卫星信道
线性失真
非线性失真
新型级联结构
宽带信号盲均衡
satellite channel
linear distortion
nonlinear distortion
novel cascade structure
blind equalization of wideband signal
