Missile Fault Diagnosis Method Based on CVA

As an effective means of unmanned strike or defense, missile has a higher requirement for security with its rapid development. However, the complex mechanism of missile systems determines that the accuracy of the model obtained by mechanism analysis cannot be guaranteed. While the system model obtained by algorithm based on test data has higher credibility. Aiming at the missile systems which cannot be modeled by mechanism analysis, this paper first obtains a linear model to approximate the actual missile system by the canonical variable analysis (CVA) that using the state data and input data generated in missile tests, and designs a fault diagnosis (FD) system based on the above linear model, which can predict the output of the missile system without fault. When the error between the real output and the predicted output of the missile exceeds a threshold, it can be considered that the missile has failures and corresponding measures should be taken.