TWOSTEP: A fast robust algorithm for attitude-independent magnetometer-bias determination

被引：0
|
作者：
Alonso, Roberto [1 ]
Shuster, Malcolm D. [2 ]
机构：
[1] Jefe, Grupo de Control de Actitud, CONAE, Avenida Paseo Colón 751, 1063 Buenos Aires, Argentina
[2] Acme Spacecraft Company, 13017 Wisteria Drive, Box 328, Germantown, MD 20874, United States
来源：
Journal of the Astronautical Sciences | 2003年 / 50卷 / 04期
关键词：
Algorithms - Magnetic fields - Magnetometers - Mathematical models - Space flight - Statistics;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A fast robust algorithm is developed for the inflight estimation of magnetometer biases when the attitude is not known. This algorithm combines the convergence in a single step of an heuristic algorithm currently in use with the correct treatment of the statistics of the measurement, and does this without discarding data. The new algorithm works well even when the magnetometer bias is comparable in magnitude to the ambient magnetic field. The algorithm performance is examined using simulated data for both spinning and inertially stabilized spacecraft.
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页码：433 / 451
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