Fault Detection Method for Attitude Control System of Batch Satellite Based on Multi-Telemetry Consistency Evaluation

In view of the lack of consistency evaluation and fault detection methods for batch satellite, a fault detection method for attitude control system of batch satellite based on multi-telemetry consistency evaluation is proposed, while considering the multi-telemetry correlation characteristics of the satellite attitude control mode judgment. According to the overall design of batch satellite, the important features of various attitude control mode are chosen firstly to construct the multi-mode and multi-dimensional important feature baseline. Secondly, the multi-dimensional consistency analysis and evaluation model driven by telemetry of batch satellite is established to indicate the performance of attitude control system. Then, the fault detection method of threshold judgment, which is based on the evaluation result of the previous proposed evaluation model, is used to complete the fault detection of batch satellites’ attitude control system. At last, the effectiveness of the proposed method is illustrated by the practical application in Yaogan-42 batch satellite. It can assist the satellite designers to grasp the state of batch satellite more clearly, and is of great significance in test-data-driven analysis, evaluation and confirmation for the subsequent batch satellites.