2m波段方向图匹配测向算法研究  

Research on Algorithm of Direction Pattern Matching in 2m Band

作　　者：王骥 王洪源[1] WANG Ji;WANG Hongyuan(School of Information Science and Engineering,Shenyang Ligong University,Shenyang,Liaoning Province,110159 China)

机构地区：[1]沈阳理工大学信息科学与工程学院,辽宁沈阳110159

出　　处：《科技创新导报》2022年第29期111-114,共4页Science and Technology Innovation Herald

摘　　要：针对无线电测向采用幅度比较法存在的遮挡、衰落、失真和多径效应等因素产生的测向方向不准确问题,提出一种方向图匹配(APM)的测向算法,其基本原理是先使用加速度传感器(MEMS)检测天线的倾斜度,并确保天线的水平放置,然后采取控制变量法,计算天线阵元数目相同时,天线的各个初始指向与互相关曲线的关系。结果表明,方向图匹配的方法能够有效提高测向的精确度,特别是对于多旁瓣、大后瓣天线,其稳定性和可靠性比幅度比较式测向要强,因此符合实验需求。In order to solve the problem of inaccurate direction finding caused by factors such as occlusion,fading,distortion and multipath effect in radio direction finding by amplitude comparison method,a direction finding al‐gorithm based on APM is proposed.The basic principle is to first use an MEMS to detect the inclination of the an‐tenna and ensure that the antenna is placed horizontally,and then adopts the control variable method to calculate the relationship between the initial directions of the antenna and the cross-correlation curve when the number of an‐tenna elements is the same.The results show that the method of pattern matching can effectively improve the accu‐racy of direction finding,especially for multi-sidelobe and large backlobe antennas,its stability and reliability are stronger than that of amplitude comparison direction finding,so it meets the experimental requirements.

关 键 词：无线电测向 方向图匹配 加速度传感器 互相关函数 

分 类 号：TN98[电子电信—信息与通信工程]