一种基于动态门限与LMS算法相结合的多径干扰抑制算法
A Multipath Interference Suppression Algorithm Based on Dynamic Threshold Combined with LMS Algorithm
郭立民 1于致博1
作者信息
- 1. 哈尔滨工程大学,黑龙江哈尔滨 150001
- 折叠
摘要
在船舰行驶过程中,信号的传输在岛屿反射与海面散射影响下易产生多径效应,使船舰的无线地空数据接收系统受到影响.为提高接收机的接收性能,首先完成了多径信道的建模,搭建了三径信道模型,并在此模型下,将动态门限法与最小均方(LMS)算法进行改进结合,并用此算法完成了信号处理的研究与仿真.仿真结果表明,所提算法优化方案可以提高在此种情况下信号接收系统的准确性.
Abstract
During the process of ship driving,the transmission of signals is easy to generate mul-tipath effect under the influence of island reflection and sea surface scattering,which affects the ship's wireless ground-air data receiving system.In order to improve the reception performance of receivers,this paper first completes the modeling of multipath channels,builds a three-path channel model,and combines the dynamic threshold method with the least mean square(LMS)algorithm under this model,and uses this algorithm to complete the research and simulation of signal pro-cessing.The simulation results show that the optimization scheme of the algorithm proposed in this paper can improve the accuracy of signal receiving system under such circumstance.
关键词
无线数据链/多径信道/干扰抑制/最小均方算法/动态门限Key words
wireless data link/multipath channel/interference suppression/least mean square algo-rithm/dynamic threshold引用本文复制引用
出版年
2024
NETL
NSTL
万方数据