基于心脏形调制磁信号的目标定向机理  

Target orientation mechanism based on heart-shaped modulated magnetic signal

作　　者：向枫桦 杨宾峰[1] 李博[1] 赵震 郭娇娇 XIANG Fenghua;YANG Binfeng;LI Bo;ZHAO Zhen;GUO Jiaojiao(School of Information Engineering and Navigation, Air Force Engineering University, Xi’an 710077, China)

机构地区：[1]空军工程大学信息与导航学院,陕西西安710077

出　　处：《系统工程与电子技术》2022年第4期1113-1119,共7页Systems Engineering and Electronics

基　　金：国家自然科学基金(51577191)资助课题。

摘　　要：针对传统磁信标采用幅值进行目标定位存在测量误差大、定位精度低等诸多不足,提出一种基于心脏形调制磁信号的目标定向机理。首先,借鉴无线电导航天线的心脏形方向图原理,利用永磁体和通电导线生成心脏形调制磁信号。其次,探究不同距离对心脏形调制信号的影响,发现随着距离的增加,调制信号仍然是单峰信号。然后,研究通电导线的倾斜角度对调制信号的影响,发现通电导线倾斜30°时,心脏形调制信号效果更佳。最后,利用调制磁信号进行角度测量,发现测角误差与距离无关,并通过构建实验平台,利用无磁转台验证磁信号相位式测角的的可行性。Aiming at the traditional magnetic beacons using amplitude information for target localization suffer from many shortcomings such as large measurement errors and low localization accuracy,a target orientation mechanism based on heart-shaped modulated magnetic signals is proposed.Firstly,the heart-shaped directional map principle of the radio navigation antenna is borrowed to generate heart-shaped modulated magnetic signals using permanent magnets and energized wires.Secondly,the effect of different distances on the heart-shaped modulated signal is explored,and it is found that the modulated signal remains a single-peaked signal with increasing distance.Then,the effect of the tilt angle of the energized wire on the modulated signal is investigated,and it is found that the heart-shaped modulated signal works better when the energized wire is tilted at 30°.Finally,the angle measurement is performed using the modulated magnetic signal,and it is found that the measurement angle error is independent of the distance,and the feasibility of the magnetic signal for target orientation is verified by constructing an experimental platform and using a non-magnetic turntable.

关 键 词：心脏形调制磁信号 相位式测角 永磁体 通电导线 

分 类 号：V249.32[航空宇航科学与技术—飞行器设计]