倾斜补偿式地磁传感器的设计与误差补偿方法  

Design and error compensation method of tilt compensated earth magnetism sensor

作　　者：金海红[1] 吴东升[1] 田柳[2] 范之国[2] 

机构地区：[1]安徽建筑工业学院电子与信息工程学院,安徽合肥230022 [2]合肥工业大学计算机与信息学院,安徽合肥230009

出　　处：《传感器与微系统》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

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.

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 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]