Research on Fault Diagnosis of Three Degrees of Freedom Gyroscope Redundant System

As the core component of the navigation system, the gyroscope directly affects the navigation performance of the system. In this paper, the three-degree-of-freedom gyroscope is used as the object, firstly, the three gyroscope redundant configuration forms are studied, and the combined gyroscope data simulation platform is built by using the UAV and the gyroscope sensor, and simulate possible failures by interfering with a gyroscope during flight tests. Secondly, the faulty gyro detection and identification are carried out by using the measured redundant information. At the same time, the gyroscope fault detection algorithm with redundant configuration is proposed, the accuracy and feasibility of the method are verified by the measured data of the gyroscope. The simulation shows that the method can accurately detect the gyroscope failure, improve the data utilization of the gyroscope, and increase the reliability of the navigation system.