System-level prognostics approach for failure prediction of reaction wheel motor in satellites
The reaction wheels actuated by motors are widely used for advanced attitude control of
satellites. During the satellite operation, the performance of reaction wheel motor degrades …
satellites. During the satellite operation, the performance of reaction wheel motor degrades …
Fault diagnosis of lubrication decay in reaction wheels using temperature estimation and forecasting via enhanced adaptive particle filter
Reaction wheels (RW), the most common attitude control systems in satellites, are highly
prone to failure. A satellite needs to be oriented in a particular direction to maneuver and …
prone to failure. A satellite needs to be oriented in a particular direction to maneuver and …
Remaining useful life prediction for space bearing with cage friction fault based on data pre-screening and gated recurrent unit
J Wang, Q Pan, T He, H Wang… - … Science and Technology, 2023 - iopscience.iop.org
The remaining useful life (RUL) of bearings in space inertia actuators is crucial for
performance maintenance requirements. But it is quite difficult to accurately predict the RUL …
performance maintenance requirements. But it is quite difficult to accurately predict the RUL …
Discrete Features Enhancement based Online Anomaly Detection for Satellite Telemetry Series
J Pang, G Zhao, D Liu, X Peng - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Telemetry data, collected from different onboard sensors and transmitted via a telemetry link,
are the only basis for monitoring the health status and failure of on-orbit spacecraft. The …
are the only basis for monitoring the health status and failure of on-orbit spacecraft. The …
Reducing the Computational Complexity of Pseudoinverse for the Incremental Broad Learning System on Added Inputs
H Zhu, Z Liu, CL Chen, Y Liang - arXiv preprint arXiv:1910.07755, 2019 - arxiv.org
In this brief, we improve the Broad Learning System (BLS)[7] by reducing the computational
complexity of the incremental learning for added inputs. We utilize the inverse of a sum of …
complexity of the incremental learning for added inputs. We utilize the inverse of a sum of …
Reliability Evaluation of Spacecraft Subsystem Based on a Dynamic Weighted Comprehensive Evaluation Method
X Ding, F Han, H Lu, E Gao, Q Yuan… - … Conference on Sensing …, 2022 - ieeexplore.ieee.org
On-orbit spacecraft has the characteristics of high cost, high complexity and difficult
maintenance. In order to ensure that the spacecraft can meet the on-orbit lifetime, it is …
maintenance. In order to ensure that the spacecraft can meet the on-orbit lifetime, it is …