摘要
针对航天遥感高速数据接收信道利用极化复用模式时出现的交叉极化干扰,提出了采用粗均衡的最小均方根算法与细均衡的横模算法相结合的方法,构建了交叉极化干扰对消模型。并通过仿真试验,验证了组合对消方法的可行性,能改善极化复用系统的信噪比,较好地抵消了交叉极化干扰信号影响,减小了交叉极化干扰带来的遥感信道误码率的恶化。
In view of the Cross-Polarization interference in the space remote sensing high-rate data receiving channel when using polarization multiplexing,a method of combining the coarse equalization minimum root mean square algorithm with the fine equalization transverse mode algorithm is proposed,and the Cross-Polarization interference cancellation model is constructed.Through the simulation experiment,the feasibility of the combined cancellation method is verified.Improve effectively the BER of polarization multiplexing system.The Cross-Polarization interference signal is eliminated,and the deterioration of remote sensing channel bit error rate caused by cross polarization interference is reduced.
作者
操礼长
谢学东
王志超
CAO Lichang;XIE Xuedong;WANG Zhichao(Xi’an Satellite Control Center,Xi’an 710043,China)
出处
《无线电工程》
北大核心
2021年第3期212-216,共5页
Radio Engineering
关键词
极化复用
交叉极化干扰
干扰对消
最小均方根算法
横模算法
polarization multiplexing
Cross-Polarization interference
interference cancellation
LMS
CMA
