摘要
针对仿生偏振光-地磁-GPS的多信息源融合导航平台中的地磁导航需求,设计一种基于磁阻技术的补偿式三维地磁传感器系统。详细介绍了三维地磁传感器的原理、设计方法,分析了影响传感器精度的误差来源,并有针对性地进行了误差分析与补偿方法的研究。本传感器可实现航向角、俯仰角以及横滚角的动态实时测量,为多信息源融合下的自主导航系统提供一种精确有效的地磁导航辅助信息。
A three-dimensional earth magnetism sensor is developed with pose compensation according to the need of a kind of new integrated navigation strategy which extracts information from polarized-light assisting with geomagnetism and GPS. An overview of the principle of the three-dimensional geomagnetism sensor is summarized. The hardware circuit and the procedure of the system is introduced. The error sources is analyzed and the error analysis and compensation method is studied. The sensor can realize dynamic measurement of the heading angle, the pitch angle and the roll angle. The sensor can be used as an important tool of the earth magnetism navigation, and can also provide navigation information for navigation system of multi-sources of information fusion.
出处
《传感器与微系统》
CSCD
北大核心
2010年第7期33-36,共4页
Transducer and Microsystem Technologies
基金
国家大学生创新性实验计划资助项目
安徽建筑工业学院青年专项基金资助项目
关键词
地磁罗盘
磁阻传感器
MEMS加速度计
误差补偿
地磁导航
geomagnetic compass
magnetoresistive sensor
MEMS accelerometers
error compensation
geomagnetic navigation
