Fault stands out in contrast: Zero-shot diagnosis method based on dual-level contrastive fusion network for control moment gyroscopes predictive maintenance

Hebin Liu, Qizhi Xu, Hongyan He

Abstract: Highlights•Control moment gyroscope diagnosis using neural network without fault samples.•A dual-level learning paradigm is proposed with theoretical derivation.•Faulty control moment gyroscopes show lower similarity.•Experiments conducted on real in-orbit spacecraft data.