Effect upon vehicle position precision of errors in measuring magnetic field device

摘要：

The relative position between magnetic target and the device, which is installed on vehicle under water, is determined by measuring magnetic field magnitude and its gradient of target on condition that geomagnetic field anomaly can be viewed as a magnetic dipole object. The errors of measuring magnetic field and its gradient caused by nonorthogonality between axes, different sensitivity of each axis, and installation center departure of magnetometers are analyzed in theoretically. These errors of magnetic field magnitude and its gradient can act effect on the localization precision of underwater vehicle, which is analyzed theoretically and simulation numerically. These results show that magnetometer performances such as nonorthogonality between axes, and different sensitivity of each axis have the remarkable influence on the localization precision.

关键词： Magnetic dipole Magnetic field gradient localization error magnetometer.

作者: Huang Yu Sun Feng Hao Yan Ling

作者单位: college of Science,Harbin Engineering University,Harbin 150001,China college of Automation,Harbin En college of Automation,Harbin Engineering University,Harbin 150001,China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 3924-3929

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）