Hypersonic aircraft self-adaptive learning control method based on deviator characteristic model

Abstract

The invention discloses a hypersonic aircraft self-adaptive learning control method based on a deviator characteristic model. Two variable corrected parameters are introduced, and by properly regulating the corrected parameter, the control increment at each step is limited so as to solve the problem that an executive mechanism rudder shakes too quick. The method comprises the following steps of: establishing the deviator characteristic model for laying a foundation for a golden section self-adaptive learning control law; providing a dual-parameter distinguishing method for reducing a transient error of the system control; and providing a golden section self-adaptive learning control design method based on the deviator characteristic model, thereby limiting the size of the control increment by regulating the control law corrected parameter, and reducing the relevance of a characteristic model coefficient and a state, and solving a coefficient distinguishing problem of the characteristic model. Aiming at the hypersonic aircraft, the golden section self-adaptive learning control law and the dual-parameter distinguishing algorithm based on the deviator characteristic model are designed to reduce the transient error and the shake of the rudder.

Description

technical field [0001] The invention relates to a control method for a hypersonic aircraft, in particular to an adaptive learning control method for a hypersonic aircraft based on an offset characteristic model, and belongs to the technical field of aircraft control. Background technique [0002] Hypersonic vehicle technology is the third epoch-making milestone in the history of aviation after the invention of aircraft and breaking the sound barrier, and it also opened up a new mode of entering space. Due to the unique advantages of hypersonic aircraft, as a weapon, it will occupy an important position in the rapid strike and long-range penetration of future wars. Therefore, the research of hypersonic aircraft has received great attention from the governments of major military powers. A hypersonic vehicle must adopt a special flight mode, which makes its flight envelope more complex and becomes a complex nonlinear system with mutual coupling between parameters and states, la...

AI Technical Summary

Problems solved by technology

For the hypersonic vehicle adaptive learning control method based on the offset characteristic model given by the present invention, there is no disclosed method with complete practical significance

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