The study of high precision assistant navigation system with micro-magnetic sensors

Huang X., Fang J., Guo L., Jiang Y.
School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China; School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China

Abstract: Low-cost MEMS sensors often suffer from inaccuracy and are influenced greatly by temperature variation, and the orientation error is cumulate with time. The GPS can provide long term stability with high accuracy, but it has its insufficiencies, such as disturbed easy, lower data updating rate and so on, it is hard to meet the demand of real-time measuring. The micro-magnetic sensors, an independence precision tool, can offer real-time yaw attitude angle, and this can correct the orientation cumulate error, and it increase the independence in flight of the UAV. Based on analyzing the selection principles of testing sensor, comparing 3 kinds micro-magnetic sensors, the GMI magnetic sensor is best to test geomagnetic field. The Regional model of geomagnetic field is built, and a GMI-magnetic sensor navigation method is put forward. Three-axis magnetic sensor measure the geomagnetic field, and it is matching with the geomagnetic map, then the geomagnetic elements on currently position are knew, combining with the information of accelerometer, the position information can be gotten by matching algorithm.
Author Keywords: Geomagnetic field; Geomagnetic map; Magnetic sensor; Match; Navigation

Year: 2007
Source title: Proceedings of SPIE - The International Society for Optical Engineering
Volume: 6795
Art. No.: 67952S
Cited by: 1
Link: Scorpus Link
Document Type: Conference Paper
Source: Scopus
 Authors with affiliations:
  1. Huang, X., School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China, School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
  2. Fang, J., School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
  3. Guo, L., School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
  4. Jiang, Y., School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
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