基于GMI的便携式车载磁航系统及其自适应数据处理方法

By using a portable vehicle-mounted magnetic navigation system based on GMI and an adaptive data processing method, the problems of GMI sensors being susceptible to common-mode interference, temperature drift, and inconsistent power supply methods in the vehicle environment are solved, achieving high-precision, stable heading calculation and portability.

CN122192346BActive Publication Date: 2026-07-17LANZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
LANZHOU UNIV
Filing Date
2026-05-15
Publication Date
2026-07-17

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Abstract

本发明提出了基于GMI的便携式车载磁航系统及其自适应数据处理方法，系统含有高敏模拟感知与调理模块、数字解算与控制模块，高敏模拟感知模块含有GMI磁传感单元、全差分信号调理链路、高精度量化单元；数字解算与控制模块包括主控微处理器、环境感知单元、惯性测量单元、GPS导航模块、存储单元模块、数据传输模块、蜂鸣器报警模块以及人体交互按键。自适应数据处理方法包括S1同步数据采集、步骤S2热磁耦合迟滞补偿、步骤S3瞬态异常抑制、步骤S4物理基线重构、步骤S5航向融合解算。优点：误差极低、适配车载宽温环境、车载共模与传导噪声免疫、满足小型化以及便携性要求。
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