关键词: 瞬时故障, 故障注入, 故障检测, CatBoost ,

Abstract:  Low-orbit Internet communication systems are of great significance in the field of modern communications， but due to their highly complex characteristics， the detection of transient system faults has always been a challenging problem. This paper analyzes the fault sources of possible transient faults in the low-orbit Internet communication system， establishes a transient fault model of the low-orbit Internet communication system， and proposes a CatBoost-based transient fault detection method for the low-orbit Internet communication system with the features of efficiency and accuracy. Firstly， fault is injected into the compiled intermediate code， and relevant instruction features are extracted through control flow graph and propagation path analysis; Secondly， the CatBoost machine learning algorithm is used to train the fault prediction model； Finally， the instructions are reinforced with partial redundancy according to the prediction results of the model to realize autonomous fault detection. Comparative experimental results show that the instantaneous fault prediction model based on CatBoost proposed in this article has a higher detection rate and lower space-time overhead.

Key words:  , transient fault, fault injection, fault detection, CatBoost