2018 Fiscal Year Annual Research Report
Real-time Estimation of Time-varying Magnetometer Errors for Small Satellite Missions
| Project/Area Number |
16K18313
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| Research Institution | Japan Aerospace EXploration Agency |
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Principal Investigator |
Soken HalilErsin 国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 大学共同利用システム研究員 (80750489)
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Keywords | small satellites / magnetometer / calibration / attitude sensor / time-varying error |
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| Outline of Annual Research Achievements |
Experiments are concluded with a clear understanding about the time-variation of the magnetometer errors depending on different error sources such as ferromagnetic materials nearby. Time-variation is most observable on magnetometer bias terms. Isolating the experiment setup from the environment effects on Earth and mimicking the space environment was the most challenging task to get healthy experiment data.
The experiment data is used to evaluate a real time magnetometer calibration algorithm for small satellites that integrates sensor calibration and attitude estimation functions in a single algorithm. Another attitude-independent real time full magnetometer calibration algorithm that uses gyro measurements is also designed. Research results are being prepared for journal publication.
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