一种多级维纳滤波器实现方法  

A kind of multistage Wiener filter realization method

作　　者：周柱[1] 卢树军[1] 张尔扬[1] 杜青松[1,2] 邹建彬[1] 

机构地区：[1]国防科技大学电子科学与工程学院,湖南长沙410073 [2]湖南大学计算机与通信学院,湖南长沙410082

出　　处：《微型机与应用》2010年第18期64-68,共5页Microcomputer & Its Applications

摘　　要：分析了多级维纳滤波器的工作原理和改进方法,引入一种可靠的秩选方法,得到了一种稳妥的多级维纳滤波实现方式。与传统方式相比,引入本秩选方向后的算法很容易找到一个门限,使得输出SINR达到最优。对算法有限精度模型的抗干扰性能进行了仿真试验,试验结果证明,该算法模型能消除多个干扰,并且经过抗干扰滤波的信号未受损伤。The working principle and improving ways of MWF is analyzed, a stable rank determination method is introduced, based on this, a reliable MWF realization method is gained. Through simulation, it is illuminated that the proposed rank determination method can easily find a threshold for rank selection compared with the conventional method, by which the optimum output SINR is obtained. The finite precision model of the algorithm is simulated, it is proved that the algorithm model can eliminate multiple jams, and after ant-jam filtering, the signal is not disturbed.

关 键 词：GPS 抗干扰 多级维纳滤波 秩选 

分 类 号：TN911.72[电子电信—通信与信息系统]