A joint control method for the relative position and attitude of an aerospace vehicle on orbit

Abstract

The invention relates to an aerospace aircraft on-orbit operation relative position attitude joint control method; aiming at the limited thrust and saturation characteristics of an engine, the methodcan realize integrated control of a random target attitude and a random target position through multiple feedback compensation measures; the method is high in efficiency, high in task adaptability, simple in flow, and easy to realize, thus solving the problems that an existing on-orbit operation relative position and relative attitude control method is strong in repeatability, large in workload, and poor in the task adaptability. The joint control method is based on an adaptive engine distribution method that does not depend on an engine layout form, and a distribution algorithm of different engine layout results does not need to be redesigned, thus effectively simplifying the design flow; for an aircraft in multichannel coupling engine layout configuration, the method is strong in task adaptability.

Description

technical field [0001] The invention relates to a joint control method for the relative position and attitude of aerospace vehicle on-orbit operation, and belongs to the technical field of on-orbit operation of reusable aircraft. Background technique [0002] Aerospace vehicle is a new type of aircraft, which shuttles across the atmosphere and travels between the sky and the earth. The aircraft takes into account the dual characteristics of aerospace and aviation vehicles. With the rapid development of space technology and the continuous expansion of space applications, major aerospace countries have successively developed a large number of aerospace vehicles for various mission requirements, and proposed a large number of new concept plans. With continuous improvement, the requirements for autonomy are getting higher and higher. Among them, the short-distance on-orbit operation puts forward higher requirements for the flexible ability of the aircraft to adapt to the missio...

AI Technical Summary

Problems solved by technology

[0007] In the traditional on-orbit operation, the relative position and relative attitude control adopts a discrete design, which has problems such as strong repeatability, heavy workload, and poor task adaptability. It is necessary to propose a method suitable for this type of space based on the control accuracy requirements of on-orbit operations. The joint control method of the relative position and attitude of the space vehicle, in order to achieve the goal of safe, reliable and autonomous on-orbit capture, replacement and assembly of the vehicle

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