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Multi-maneuvering target tracking method based on iteration adaptation

A technology of maneuvering target tracking and iterative self-adaptation, applied to radio wave measurement systems, instruments, etc., to achieve the effect of improving tracking accuracy

Inactive Publication Date: 2017-11-28
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0004] In order to avoid the deficiencies of the prior art, the present invention proposes an iterative adaptive multi-maneuvering target tracking method to solve the problem of multi-maneuvering target tracking in a dense clutter environment

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  • Multi-maneuvering target tracking method based on iteration adaptation
  • Multi-maneuvering target tracking method based on iteration adaptation
  • Multi-maneuvering target tracking method based on iteration adaptation

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Embodiment Construction

[0035] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:

[0036] figure 1 It is a multi-maneuvering target full-tracking graph model. From the figure, we can see that the data association problem is coupled with the state estimation of the maneuvering target. Therefore, an iterative mechanism is adopted to jointly optimize the incidence matrix, motion pattern and target state by utilizing the closed-loop feedback among the information.

[0037] figure 2 It is a technical scheme diagram of a kind of multi-maneuvering target tracking method of the present invention, and the specific implementation details of each part are as follows:

[0038] 1. Multi-maneuvering target tracking problem description

[0039] ●Status prediction model

[0040] The discrete-time state equation of the target is:

[0041]

[0042] Among them, the state transition function and noise control array is given, j=1,...,N M Indicates the...

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Abstract

The invention relates to a multi-maneuvering target tracking method based on iteration adaptation. According to t he invention, based on a data association problem and a target maneuvering problem in multi-maneuvering target tracking processes, a confidence propagation algorithm and a jump Markov system fixed interval smoother are used; under the unified framework of the variational Bayesian, united optimization is performed on target states and association matrixes through an iteration mechanism, so tracking precision of the maneuvering target is improved; and compared with the current multi-maneuvering target tracking algorithm, the provided method is characterized in that based on the iteration feedback idea, the data association problem and the target maneuvering problem are processed in an united manner under the unified variational Bayesian framework so the method has certain theoretical and actual engineering meanings in the target tracking field.

Description

technical field [0001] The invention belongs to the target tracking subsystem technology in the field of radar data processing, and relates to an iterative adaptive multi-maneuvering target tracking method, in particular to an iterative adaptive multi-maneuvering target tracking method based on a Variational Bayesian algorithm (Variational Bayesian, VB). Maneuvering target tracking method. Background technique [0002] The rapid development of modern aeronautics, especially the improvement of the maneuverability of various fighters and unmanned aerial vehicles, makes the multi-maneuvering target tracking problem an urgent problem to be solved. The problem of maneuvering target tracking in a clutter environment is to deal with the state estimation of multiple maneuvering targets. Since the observed measurement values ​​can come from the detected target or clutter, the problem to be solved in multi-maneuvering target tracking There are two main ones: one is to determine the c...

Claims

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Application Information

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IPC IPC(8): G01S7/41
CPCG01S7/41
Inventor 兰华马季容王增福潘泉
Owner NORTHWESTERN POLYTECHNICAL UNIV
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