Anti-delay high-precision active disturbance rejection attitude control method based on fixed time differentiator prediction

A fixed time, attitude control technology, applied in attitude control, vehicle position/route/height control, non-electric variable control and other directions, can solve problems such as falling into a hysteretic loop state, poor performance, and attitude reciprocating oscillation
CN111198570AActive Publication Date: 2020-05-26HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2020-05-26

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Abstract

The invention discloses an anti-delay high-precision active disturbance rejection attitude control method based on fixed time differentiator prediction, which belongs to the technical field of guidance and control. The specific scheme is as follows: the anti-delay high-precision active disturbance rejection attitude control method based on the fixed time differentiator comprises the following steps of: 1, designing a fixed time convergence differentiator and obtaining an attitude change rate observation value, 2, predicting a real-time flight state based on the fixed time convergence differentiator, 3, constructing an aircraft three-channel attitude error tracking model, and 4, constructing an active disturbance rejection control system, and generating a real-time pneumatic rudder swing instruction through the active disturbance rejection control system by utilizing the real-time flight state of the aircraft. Development and production cost of aircrafts in China can be effectively reduced, and technical support is provided for improving aviation strength in China.
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Description

technical field

[0001] The invention belongs to the technical field of guidance and control, and relates to a time-delay-resistant and high-precision self-disturbance rejection attitude control method based on fixed-time differentiator prediction. Background technique

[0002] The use of high-performance components is an important guarantee for the high-quality flight of the aircraft. However, the high cost brought by high-performance components has also brought a heavy burden to the national finances. While ensuring the flight quality of aircraft, reducing the production cost of aircraft and improving the cost-effectiveness of aircraft mission execution are effective ways to enhance my country's aviation strength.

[0003] However, reducing the production cost of the aircraft means using low-cost but poor-performance components, which puts forward higher requirements for the design of the airborne software system. How to use high-quality navigation, guidance, control and o...

Claims

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