一种多传感器融合的罗盘校正方法
By using a multi-sensor fusion method, electronic compass calibration is performed on the aircraft using a triaxial accelerometer and a triaxial magnetometer. This simplifies the operation steps and improves the accuracy of the magnetic heading angle, solving the problems of complexity and low accuracy in existing calibration methods.
CN116007600BActive Publication Date: 2026-07-17TAIYUAN AERO INSTR
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TAIYUAN AERO INSTR
- Filing Date
- 2022-12-30
- Publication Date
- 2026-07-17
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Figure CN116007600B_ABST
Abstract
本申请提供一种多传感器融合的罗盘校正方法，属于罗盘校正技术领域，该方法先在飞行器的磁航向角为0°时，通过三轴加速度计、三轴磁传感器的数据计算飞行器当前的三轴磁场强度；再控制飞行器开始顺时针旋转360°，将飞行器原始三轴磁场强度通过平移和伸缩变换处理得到三轴磁场强度校正值，飞行器原始三轴磁场强度由椭圆拉回正圆；之后将飞行器拉回至磁航向角为0°位置附近，控制飞行器从当前位置开始顺时针旋转360°；通过磁航向角和三轴陀螺、三轴加速度计的数据，以及三轴磁场强度校正值，得到一阶线性校正参数。通过多传感器融合方式实现校正，降低人工操作的严苛要求，简化罗盘校正过程，减少操作步骤，提高磁航向角的精度。
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