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The accuracy of geomagnetic reference map, geomagnetic sensor, and inertial navigation system is the key factor which affects the reliability of magnetic contour matching (MAGCOM) system. In order to improve the reliability of MAGCOM, the influence of the sensor's accuracy on the matching success rate has been studied. For different geomagnetic reference maps, the factors and their physical mechanism affecting matching success rate have been analyzed, the factors are geomagnetic sensor error, velocity error, and heading angle error. The error range of sensors was determined by the simulation computing which was based on a practical system and a simulation experimentation was implemented by using the geomagnetic reference map. The simulation results show that MAGCOM can allow the velocity error 0.14 m/s, the heading angle error 0.6 and the standard deviation of geomagnetic sensor noise 11 nT, when the matching success rate is 90%.
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Keywords:
- geophysical field navigation /
- geomagnetic field /
- magnetic contour matching /
- performance evaluation
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[9] Mu H, Ren Z X, Hu X P 2007 J. Chin. Inertial Technol. 15 322 (in Chinese) [穆华, 任治新, 胡小平 2007 中国惯性技术学报 15 322]
[10] Li S M, Zhang W Q 2004 Guidance & Fuz 25 19 (in Chinese) [李素敏, 张万清 2004 制导与引信 25 19]
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[1] Abdelkrim N, Aouf N 2010 IEEE Sens. J. 10 789
[2] Vadlamani A K 2007 Ph. D. Dissertation (USA: Ohio University)
[3] Wang X L, Tian Y F 2010 Chin. J. Geophys. 53 2724 (in Chinese) [王向磊, 田颜锋 2010 地球 53 2724]
[4] Guo C F, Hu Z D, Zhang S F, Cai H 2009 J. Astron. 30 1314 (in Chinese) [郭才发, 胡正东, 张士峰, 蔡洪 2009 宇航学报 30 1314]
[5] Sun H, Feng Y, An Z C, Mao F 2010 Acta Phys. Sin. 59 8941 (in Chinese) [孙涵, 冯彦, 安振昌, 毛飞 2010 59 8941]
[6] Goldenberg F 2006 IEEE/ION Position Location and Navigation Symposium San Diego, USA, April 25-27, 2006 p684
[7] Tyrén C 1982 J. Navigat. 35 242
[8] Peng F Q 2006 Hydrographic Surveying and Charting 26 73 (in Chinese) [彭富清 2006 海洋测绘 26 73]
[9] Mu H, Ren Z X, Hu X P 2007 J. Chin. Inertial Technol. 15 322 (in Chinese) [穆华, 任治新, 胡小平 2007 中国惯性技术学报 15 322]
[10] Li S M, Zhang W Q 2004 Guidance & Fuz 25 19 (in Chinese) [李素敏, 张万清 2004 制导与引信 25 19]
[11] Yan D Y, Ren J X, Song Y J 2007 Mach. Electron. 25 19 (in Chinese) [晏登洋, 任建新, 宋永军 2007 机械与电子 25 19]
[12] Zhao L 2012 Acta Phys. Sin. 61 104301 (in Chinese) [赵龙 2012 61 104301]
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