The Conjunctive Compensation Method Based on Inertial Navigation System and Fluxgate Magnetometer
Eliminating the magnetic interference of the carrier platform is an important technical link and plays a vital role in aeromagnetic survey. The traditional compensation method is based on the Tolles–Lawson (T-L) model and establishes the linear relationship between the aircraft interference magnetic...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-04-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/13/8/5138 |
| _version_ | 1797606471384432640 |
|---|---|
| author | Bingyang Chen Ke Zhang Bin Yan Wanhua Zhu |
| author_facet | Bingyang Chen Ke Zhang Bin Yan Wanhua Zhu |
| author_sort | Bingyang Chen |
| collection | DOAJ |
| description | Eliminating the magnetic interference of the carrier platform is an important technical link and plays a vital role in aeromagnetic survey. The traditional compensation method is based on the Tolles–Lawson (T-L) model and establishes the linear relationship between the aircraft interference magnetic field and the aircraft attitude. The compensation coefficients are solved by designing the calibration flight. At present, almost all aeromagnetic systems use the fluxgate magnetometer fixed to the aircraft to realize the attitude measurement of the flight platform. However, the fluxgate magnetometer has problems, such as non-orthogonal error, zero drift error, and linearity error limited by the production process, and the fluxgate magnetometer is also very susceptible to external magnetic interference as a magnetic sensor. These lead to the aircraft attitude calculated by the fluxgate magnetometer being inaccurate, thus reducing the compensation effect. In this article, we analyze the influence of the fluxgate magnetometer noise on compensation and propose a new conjunctive compensation method based on inertial navigation systems (INS) and fluxgate magnetometer information to improve the compensation effect. The flight experiment data show that the proposed method can significantly improve the quality of aeromagnetic data. Compared with the traditional compensation method only based on fluxgate magnetometer information, the improved ratio is increased by 30–60%, and it is a real-time compensation method. It shows that the proposed method has a remarkable compensation effect for aeromagnetic interference. |
| first_indexed | 2024-03-11T05:15:40Z |
| format | Article |
| id | doaj.art-1a61890e59694867aa27ab8e0f9c3e29 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T05:15:40Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-1a61890e59694867aa27ab8e0f9c3e292023-11-17T18:14:09ZengMDPI AGApplied Sciences2076-34172023-04-01138513810.3390/app13085138The Conjunctive Compensation Method Based on Inertial Navigation System and Fluxgate MagnetometerBingyang Chen0Ke Zhang1Bin Yan2Wanhua Zhu3Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, ChinaAerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, ChinaAerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, ChinaAerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, ChinaEliminating the magnetic interference of the carrier platform is an important technical link and plays a vital role in aeromagnetic survey. The traditional compensation method is based on the Tolles–Lawson (T-L) model and establishes the linear relationship between the aircraft interference magnetic field and the aircraft attitude. The compensation coefficients are solved by designing the calibration flight. At present, almost all aeromagnetic systems use the fluxgate magnetometer fixed to the aircraft to realize the attitude measurement of the flight platform. However, the fluxgate magnetometer has problems, such as non-orthogonal error, zero drift error, and linearity error limited by the production process, and the fluxgate magnetometer is also very susceptible to external magnetic interference as a magnetic sensor. These lead to the aircraft attitude calculated by the fluxgate magnetometer being inaccurate, thus reducing the compensation effect. In this article, we analyze the influence of the fluxgate magnetometer noise on compensation and propose a new conjunctive compensation method based on inertial navigation systems (INS) and fluxgate magnetometer information to improve the compensation effect. The flight experiment data show that the proposed method can significantly improve the quality of aeromagnetic data. Compared with the traditional compensation method only based on fluxgate magnetometer information, the improved ratio is increased by 30–60%, and it is a real-time compensation method. It shows that the proposed method has a remarkable compensation effect for aeromagnetic interference.https://www.mdpi.com/2076-3417/13/8/5138aeromagnetic compensationinertial navigation systemconjunctive compensation |
| spellingShingle | Bingyang Chen Ke Zhang Bin Yan Wanhua Zhu The Conjunctive Compensation Method Based on Inertial Navigation System and Fluxgate Magnetometer Applied Sciences aeromagnetic compensation inertial navigation system conjunctive compensation |
| title | The Conjunctive Compensation Method Based on Inertial Navigation System and Fluxgate Magnetometer |
| title_full | The Conjunctive Compensation Method Based on Inertial Navigation System and Fluxgate Magnetometer |
| title_fullStr | The Conjunctive Compensation Method Based on Inertial Navigation System and Fluxgate Magnetometer |
| title_full_unstemmed | The Conjunctive Compensation Method Based on Inertial Navigation System and Fluxgate Magnetometer |
| title_short | The Conjunctive Compensation Method Based on Inertial Navigation System and Fluxgate Magnetometer |
| title_sort | conjunctive compensation method based on inertial navigation system and fluxgate magnetometer |
| topic | aeromagnetic compensation inertial navigation system conjunctive compensation |
| url | https://www.mdpi.com/2076-3417/13/8/5138 |
| work_keys_str_mv | AT bingyangchen theconjunctivecompensationmethodbasedoninertialnavigationsystemandfluxgatemagnetometer AT kezhang theconjunctivecompensationmethodbasedoninertialnavigationsystemandfluxgatemagnetometer AT binyan theconjunctivecompensationmethodbasedoninertialnavigationsystemandfluxgatemagnetometer AT wanhuazhu theconjunctivecompensationmethodbasedoninertialnavigationsystemandfluxgatemagnetometer AT bingyangchen conjunctivecompensationmethodbasedoninertialnavigationsystemandfluxgatemagnetometer AT kezhang conjunctivecompensationmethodbasedoninertialnavigationsystemandfluxgatemagnetometer AT binyan conjunctivecompensationmethodbasedoninertialnavigationsystemandfluxgatemagnetometer AT wanhuazhu conjunctivecompensationmethodbasedoninertialnavigationsystemandfluxgatemagnetometer |