Estimation method of continuous-discrete maximum correlation entropy distributed cubature kalman filter

By employing the continuous-discrete maximum correlation entropy distributed capillary Kalman filter method in a multi-sensor network, the error and non-Gaussian noise problems of traditional algorithms when dealing with continuous-discrete nonlinear models are solved, achieving accurate state estimation and wide adaptability for aircraft targets.

CN116667817BActive Publication Date: 2026-07-28HEFEI UNIV OF TECH
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Patent Information

Application Number
CN202310639934.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-31
Publication Date
2026-07-28
Estimated Expiration
2043-05-31

AI Technical Summary

Technical Problem

Existing target tracking algorithms suffer from problems such as large discretization errors, limited application range, and inability to handle non-Gaussian noise when dealing with continuous-discrete nonlinear models, resulting in inaccurate state estimation.

Method used

The continuous-discrete maximum correlation entropy distributed capacitive Kalman filter method is adopted. By establishing a continuous-discrete target tracking model of a multi-sensor network, and combining the maximum correlation entropy criterion, 1.5-order ITO Taylor expansion, cubic capacitive rule and average consensus method, accurate target state information is calculated, non-Gaussian noise is processed and estimation accuracy is improved.

Benefits of technology

It improves the accuracy and reliability of target state estimation, breaks through the limitation of sampling interval, has a wide range of applications, and can perform accurate aircraft target tracking in non-Gaussian noise environments.

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Abstract

The embodiment of the application provides an estimation method of continuous-discrete maximum correlation entropy distributed cubature Kalman filtering, which comprises the following steps: establishing a continuous-discrete target tracking model in a multi-sensor network; based on a maximum correlation entropy criterion, a 1.5-order ITO Taylor expansion, a cubic cubature rule, an average consensus method and a minimum mean square error criterion, calculation is performed to obtain a continuous-discrete maximum correlation entropy distributed cubature Kalman filtering method; and for the continuous-discrete target tracking model, target tracking is performed according to the continuous-discrete maximum correlation entropy distributed cubature Kalman filtering method to obtain accurate target state information. The method can accurately estimate the parameters of an aircraft target and improve reliability.
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