Multi-model self-correcting unscented Kalman Filter method
A technology of unscented Kalman and Kalman filtering, which is applied in the field of robust Kalman filtering and can solve problems such as inapplicability
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[0117] The present invention will be described in detail below in conjunction with the drawings.
[0118] The present invention provides a multi-model self-calibration unscented Kalman filter method, and its flow chart is as follows figure 1 As shown, the time update flowchart is as figure 2 As shown, it includes the following six steps:
[0119] Step 1: Establish the basic equation of the system
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[0122] Z k =h k (X k )+V k (43)
[0123] Where X k Represents the state vector of the system, with Corresponding to the kinetic model with unknown input and the standard kinetic model, Z k Represents the system measurement vector, f k (·) and h k (·) are the nonlinear state recurrence equation and the measurement equation, b k Represents unknown input, W k With V k Are the system noise vector and the measurement noise vector, and the variance matrix is Q k And R k And meet
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[0125] In the formula, Cov[·] is the covariance, E[·] is the mathematical expectatio...
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