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Maneuvering target motion coordinate interval estimation method based on centrosymmetric polyhedron

A technology of maneuvering targets and moving coordinates, applied in the direction of instruments, simulators, control/regulation systems, etc.

Pending Publication Date: 2022-01-04
DALIAN UNIV OF TECH
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Problems solved by technology

The traditional interval observer requires the state matrix of the dynamic error system to be Metzler and Hurwitz, so as to ensure the non-negativity and asymptotic stability of the dynamic error system, but in most cases, it is difficult to design the gain of the observer to satisfy these two conditions at the same time. A condition, so some researchers consider changing the coordinates to make the condition true, but this transformation matrix does not always exist

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  • Maneuvering target motion coordinate interval estimation method based on centrosymmetric polyhedron
  • Maneuvering target motion coordinate interval estimation method based on centrosymmetric polyhedron
  • Maneuvering target motion coordinate interval estimation method based on centrosymmetric polyhedron

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Embodiment Construction

[0058] Below in conjunction with accompanying drawing, the present invention will be further described, and the process flow of the maneuvering target motion coordinate interval estimation method based on the centrosymmetric polyhedron is as follows: figure 1 shown.

[0059] S1. Establish the state-space model of the maneuvering target motion coordinates of multiple turning rates, comprising the following steps:

[0060] S1.1 as figure 2 As shown, the kinematic equations for establishing discrete time are described as follows:

[0061]

[0062] v x (k+1)=cos(w i T s )v x (k)-sin(w i T s )v y (k)+T s v 1 (k)

[0063]

[0064] v y (k+1)=sin(w i T s )v x (k)+cos(w i T s )v y (k)+T s v 2 (k)

[0065] where s x is the displacement component on the x-axis, v x is the velocity component on the x-axis, s y is the displacement component on the y-axis, v y is the velocity component on the y-axis, ω is the turning rate, T s is the sampling time interval, ...

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Abstract

The invention provides a maneuvering target motion coordinate interval estimation method based on a centrosymmetric polyhedron. The maneuvering target motion coordinate interval estimation method comprises the following steps: establishing a state-space equation of a model; solving the observer gain; and carrying out iterative calculation of upper and lower bounds. Compared with an original method for designing the interval observer through a coordinate transformation method, a transformation matrix does not always has the problem, a centrosymmetric polyhedron is creatively applied to interval observation of the multi-turning-rate model of the maneuvering target so as to relax limitation of a traditional interval observer design process; the expression form is more visual, calculation is simpler, and more general conditions, namely, the condition that the modal transition probability matrix part of the system is unknown, are considered at the same time, so that the result has certain universality.

Description

technical field [0001] The invention relates to a method for estimating a coordinate interval of a maneuvering target based on a central symmetric polyhedron. Background technique [0002] With the development of society and the improvement of productivity level, control discipline plays an increasingly important role in industrial production and various engineering applications, especially in the field of aircraft control. Before applying various control algorithms to real aircraft, it is necessary to conduct simulation experiments in the model built by the software, and constantly adjust various parameters to achieve more precise control. For a maneuvering target, the establishment of a corresponding maneuvering model can well describe its movement coordinates and other characteristics, but due to its own limitations, a single model is very different from the actual movement model, and multiple models can truly reflect the maneuvering target Therefore, a multi-model model...

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Application Information

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IPC IPC(8): G05B17/02
CPCG05B17/02Y02T90/00
Inventor 费中阳唐琦陈伟重吴玉虎孙希明
Owner DALIAN UNIV OF TECH
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