10:45 〜 11:00
[PEM10-06] New Frontiers in Spaceflight Magnetometry: The Era of Boomless Magnetometers in Geospace Exploration
★Invited Papers
キーワード：Magnetometer, CubeSat, Interference Removal, Machine Learning
Magnetometers are essential instruments in space physics, but their measurements are often contaminated by various external interference sources. Traditionally, the solution to spacecraft magnetic interference has involved placing magnetometers at the end of a long deployable boom. This configuration significantly increases the cost and design complexity of a spacecraft and introduces new modes of failure. However, recent advances in signal processing have enabled the use of multiple bus-mounted magnetometers to identify and remove spacecraft interference more effectively. We introduce the Magnetic signal PRocessing, Interference Mitigation, and Enhancement (MAGPRIME) library. MAGPRIME collates several advanced interference removal algorithms, such as Underdetermined Blind Source Separation (UBSS), into a single, easy-to-use, open source software package for scientists and engineers. Additionally, we present two Monte Carlo benchmarks to compare the performance of various algorithms across different spacecraft configurations. The UBSS algorithm demonstrates significant efficacy in both boomless and short-boom magnetometer designs and is slated for use in the upcoming Geospace Dynamics Constellation mission, which aims to investigate the impact of solar inputs on the Thermosphere. Furthermore, the UBSS algorithm will be employed to remove stray magnetic fields from magnetometer measurements on the Lunar Gateway space station, which is set to orbit the moon. The advent of effective bus-mounted magnetometers, facilitated by MAGPRIME, paves the way for a new era of low-cost scientific payloads, enabling them to achieve high-quality measurements.