应用于卫星多波束天线的自适应波束形成算法比较  

A Comparative Analysis of Adaptive Beamforming Algorithms for Satellite Multiple Beam Antennas

作　　者：王华力[1] 陈长征[1] 韩锋[1] 甘仲民[1] 

机构地区：[1]解放军理工大学通信工程学院,南京210016

出　　处：《电子学报》2001年第3期358-360,共3页Acta Electronica Sinica

基　　金：国家自然科学基金!(No .69931 0 4 0 );国防科研基金!(No.99J2 0 1 1JB380 3)

摘　　要：射频干扰会严重影响卫星通信链路性能 ,而自适应调零天线是一种有效的卫星抗干扰措施 .本文对应用于多波束天线的各种自适应波束形成算法进行对比分析 ,理论分析与仿真结果皆表明 ,DMI和RLS算法相对经典的LMS算法而言 ,在收敛速率和输出信噪干扰比上皆有相当的优越性 .Radio frequency interference will cause severe degradation on satellite communications link performance,and adaptive nulling antenna is an effective anti jamming measure for communication satellite.This paper presents a comparative analysis of various adaptive beamforming schemes when used with multiple beam antennas.The results of analysis and simulation show that both DMI and RLS algorithms offer the advantages of faster convergence rates and better SINR performance over simple LMS algorithm.These fast algorithms are quite proper to cope with undesired interference signals in an operational satellite communication environment.

关 键 词：自适应波束形成 自适应算法 通信卫星 多波束天线 

分 类 号：TN927[电子电信—通信与信息系统] TN828.5[电子电信—信息与通信工程]