On-orbit real-time magnetometer bias determination for micro-satellites without attitude information

Due to the disadvantages such as complex calculation, low accuracy of estimation, and being non real time in present methods, a new real-time algorithm is developed for on-orbit mag- netometer bias determination of micro-satellites without attitude knowledge in this paper. This method uses the diffe...

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Bibliographic Details
Published inChinese journal of aeronautics Vol. 28; no. 5; pp. 1503 - 1509
Main Authors Zhang, Zhen, Xiong, Jianping, Jin, Jin
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.10.2015
Subjects
Attitude-independent
Magnetometer bias
Micro-satellite
On-orbit determination
Real-time
估计精度
偏置
姿态信息
实时算法
微卫星
磁力计
计算能力
非实时
Attitude-independent
Magnetometer bias
Micro-satellite
Real-time
On-orbit determination
Online AccessGet full text
ISSN1000-9361
2588-9230
DOI10.1016/j.cja.2015.08.001

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Summary:Due to the disadvantages such as complex calculation, low accuracy of estimation, and being non real time in present methods, a new real-time algorithm is developed for on-orbit mag- netometer bias determination of micro-satellites without attitude knowledge in this paper. This method uses the differential value approach. It avoids the impact of quartic nature and uses the iterative method to satisfy real-time applications. Simulation results indicate that the new real-time algorithm is more accurate compared with other methods, which are also tested by an experiment system using real noise data. With the new real-time algorithm, a magnetometer calibration can be taken on-orbit and will reduce the demand for computing power effectively.
Bibliography:Magnetometer bias：On-orbit determinationMicro-satellite;Attitude-independent;Real-time
11-1732/V
Due to the disadvantages such as complex calculation, low accuracy of estimation, and being non real time in present methods, a new real-time algorithm is developed for on-orbit mag- netometer bias determination of micro-satellites without attitude knowledge in this paper. This method uses the differential value approach. It avoids the impact of quartic nature and uses the iterative method to satisfy real-time applications. Simulation results indicate that the new real-time algorithm is more accurate compared with other methods, which are also tested by an experiment system using real noise data. With the new real-time algorithm, a magnetometer calibration can be taken on-orbit and will reduce the demand for computing power effectively.
ISSN:1000-9361
2588-9230
DOI:10.1016/j.cja.2015.08.001