Non-fragile guaranteed-performance static output feedback attitude stability control method

Abstract

The invention discloses a non-fragile guaranteed-performance static output feedback attitude stability control method and belongs to the technical field of guidance and control. The non-fragile guaranteed-performance static output feedback attitude stability control method comprises steps of 1, constructing a three-channel attitude linearization state space model of an aircraft; 2, constructing anon-fragile guaranteed performance static output feedback control model of the aircraft; and 3, designing a non-fragile guaranteed-performance static output feedback controller. The non-fragile guaranteed-performance static output feedback attitude control method is advantaged in that a control parameter perturbation phenomenon caused by low-cost components can be effectively coped with, the situation of attitude oscillation and even instability divergence caused by control parameter perturbation is avoided, high-quality attitude control over the aircraft is achieved, high battlefield strike efficiency of the aircraft is guaranteed, and the method has a wide application background in the field of low-cost aircraft control.

Description

technical field [0001] The invention belongs to the technical field of guidance and control, and in particular relates to a non-fragile guaranteed energy static output feedback attitude stabilization control method. Background technique [0002] In order to achieve high-quality flight control of the aircraft, high-performance components are usually used in the design of the aircraft to achieve low latency and low uncertainty in the hardware link. However, high-performance components will inevitably bring high aircraft design costs, which not only brings a heavy burden to the country's finances, but also is not conducive to the improvement of the competitiveness of aircraft in the international market. Therefore, it is necessary to consider the use of low-cost components for aircraft development, thereby effectively reducing the production cost of the aircraft. [0003] However, the use of low-cost components will inevitably bring about a series of problems such as strong un...

AI Technical Summary

Problems solved by technology

[0003] However, the use of low-cost components will inevitably bring about a series of problems such as strong uncertainty, which puts forward higher requirements for the design of airborne software systems. How to use high-quality navigation, guidance, control and other algorithms to realize Effective compensation for system performance loss is the key technology to realize low-cost aircraft

It is difficult for traditional flight control schemes to ensure good attitude control dynamic performance in the presence of control parameter perturbations, which may lead to large overshoot, slow convergence, multiple oscillations, etc.

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