基于心脏形调制磁信号的目标定向机理

doi:10.12305/j.issn.1001-506X.2022.04.06

Abstract

Abstract:

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.

Key words: heart-shaped modulated magnetic signal, phase-based goniometry, permanent magnet, energized wire

CLC Number:

V249.32

Fenghua XIANG, Binfeng YANG, Bo LI, Zhen ZHAO, Jiaojiao GUO. Target orientation mechanism based on heart-shaped modulated magnetic signal[J]. Systems Engineering and Electronics, 2022, 44(4): 1113-1119.

Figures/Tables 16

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序号	真实位置/m	距离/m	真实角度/(°)	测量角度/(°)
1	(31.17, 39.09)	50	308.57	309.30
2	(51.51, 30.77)	60	308.57	309.29
3	(37.41, 46.91)	70	308.58	309.29
4	(49.88, 62.55)	80	308.57	309.29
5	(56.11, 70.36)	90	308.57	309.29
6	(62.35, 78.18)	100	308.57	309.30

Target orientation mechanism based on heart-shaped modulated magnetic signal

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