多波束卫星通信系统逐渐向以用户为中心的波束合成体制转变,用户位置的随机性使得目标波束的中心指向应具有任意性,以保证用户服务质量。针对传统的7馈源选择方案波束间干扰较大的问题,设计了一种基于非相邻7馈源组合的馈源选择方案,在满足波束中心指向任意性的同时,通过波束成形算法加权求解,找到均方误差达到最小,实现最佳馈源组合方案,并通过仿真对方案性能进行了分析。
Multi-beam satellite communication system is gradually adopting user-centered beam forming system.The randomness of the users' position requires the beam pointing target to be arbitrary to qualify the users service. The traditional 7 feed options face the problem of significant interference among beams,the beam-forming option of non-adjacent 7-feed combination provides the best option,which realizes the arbitrariness of the beam pointing center and works out a minimum mean square error through weighted beam-forming algorithm.The performance of the solution is analyzed by simulation.