2024
DOI: 10.1088/1361-6501/ad28ae
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Test mass charge estimation for the space inertial sensor with extended Kalman filter

Weihong Gu,
Kai Cheng,
Wei Hong
et al.

Abstract: Charge Management System (CMS), aimed at mitigating charge-induced noise on an isolated free-falling test mass (TM), is a crucial component of space inertial sensors in various spaceborne gravitational missions. The estimation of TM charge is one of the tasks of CMS, directly impacting CMS performance. However, current methods for TM charge estimation suffer from slow response and significant estimation errors. This paper presents a new charge estimation method that combines the force modulation principle with… Show more

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