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Based on the analysis of GPS deception jamming theory, this paper considers the control feathers of the UAV GPS/INS integrated navigation system and designs an innovation detection rule for the UAV navigation system state estimation. Methods of direct track deception and track fusion are used to achieve the intrusive control of the navigation system and the control of the UAV's trajectory through...
With the development of information technology, the accelerometer has been applied widely, such as navigation, target tracking, medical, consumer electronics. The signal, collected by accelerometer, is usually affected by the noisy signal. Before processing, the signal needs to be filtered. This article describes several filtering algorithm, commonly used in the acceleration data processing. Then,...
In this paper, a model-based Fault Detection, Identification and Estimation (FDIE) scheme has been developed for the condition monitoring of the electro-hydraulic actuator (EHA) system. The scheme combines the use of a model of the EHA system with the multiple-model (MM) estimation algorithm to evaluate if fault is present, its cause and its severity. Using a multivariate nonlinear stochastic model,...
In this paper, a fault detection, identification and estimation approach has been developed for the condition monitoring of the electro-hydraulic actuator (EHA) system using the multiple-model (MM) estimation algorithm. The MM estimation algorithm makes use of the extended Kalman filter (EKF) technique to generate estimates of states and key physical parameters, which are related to faults in the...
In this paper, an approach to fault diagnosis in a nonlinear stochastic dynamic system is proposed using the interacting multiple particle filtering (IMPF) algorithm. The fault diagnostic approach is formulated as a hybrid multiple- model estimation scheme. The proposed diagnostic approach provides an integrated framework to estimate the system's current operational or faulty mode, as well as the...
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