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基于细分系统方法的MEMS-IMU三轴陀螺仪的热校准

Tongxu Xu¹, Xiang Xu², Jingya Zhang³

¹The School of Electronic and Information Engineering, Changshu Institute of Technology, Suzhou, 215506, China. xutongxumail@163.com.

Scientific reports

|October 11, 2024

概括

本研究介绍了微电机系统 (MEMS) 三轴陀螺仪的新热校准方法. 这种方法有效地减少了与温度相关的漂移错误,提高了导航和定位应用的准确性.

科学领域:

工程工程师工程师工程师
仪器化仪器化仪器化
传感器技术传感器技术

背景情况:

微型电机系统 (MEMS) 技术的进步改善了惯性测量单元 (IMU) 的性能.
在智能移动终端中,MEMS三轴陀螺仪对于态度估计和导航至关重要.
温度引起的漂移错误对低成本和中成本的MEMS三轴陀螺仪的准确性有很大影响.

研究的目的:

为MEMS三轴陀螺仪开发一种有效且易于使用的热校准方法.
为了解决需要昂贵设备的传统校准方法的局限性.
为了提高MEMS三轴陀螺仪在各种应用中的精度.

主要方法:

对MEMS三轴陀螺仪的热漂移行为的分析和建模.
基于来自热漂移模型的24态模型的细分系统校准方法的建议.
通过模拟和实验校准进行验证.

主要成果:

模拟表明,拟议的方法准确地近似了实际参数的热漂移曲线.
校准实验显示,与使用原始参数相比,态度计算错误显著减少,高达90%.
拟议方法的有效性通过实践测试来验证.

结论:

开发的热校准方法有效地减轻了MEMS三轴陀螺仪中与温度相关的错误.
这种方法提供了一个具有成本效益的解决方案来提高陀螺仪的精度,使更广泛的用户受益.
该方法提高了MEMS三轴陀螺仪在导航和定位系统中的可靠性和适用性.

关键词:

导航导航导航导航导航有系统的校准.热漂移是一种热漂移.三轴陀螺仪的三轴陀螺仪

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