A program angle optimization design method for multi-constraint autonomous aircraft

Abstract

The invention relates to a program angle optimization and designing method of a multi-constraint autonomous aircraft. The method comprises the following steps: 1) setting an initial time of an earth orientation period as T0, setting the initial time of an earth orientation period termination time and a space-based digital period as T1, and setting a space-based digital period termination time as T2; 2) according to a track parameter and a launch point parameter of the aircraft, calculating a program angle of the aircraft at the earth orientation period based on an attitude transition matrix ofa body coordinate system related by a body coordinate system; 3) determining an antenna and a space-based satellite of the aircraft based on visible performance of the antenna of the aircraft at thespace-based digital period on the space-based satellite, and calculating the program angle of the aircraft at the space-based digital period; and 4) smoothing according to the program angle of the aircraft at the earth orientation period in the step 2) and the program angle of the aircraft at the space-based digital period in the step 3).

Description

technical field [0001] The invention relates to a program angle optimization design method of a multi-constraint autonomous aircraft, which belongs to the field of aircraft guidance, navigation and control. Background technique [0002] When the aircraft is in orbit, the attitude determination and control are often carried out through the space orientation homing devices such as the earth sensor, the sun sensor and the star sensor, so as to ensure that the attitude of the aircraft changes according to the mission requirements. However, for the aircraft under the pure inertial group navigation scheme, the attitude change required by its mission can only be realized through the program control scheme, and in the program control scheme, the design of the program angle is a key link. The program angle represents the expected attitude sequence of the aircraft during the mission, and needs to meet the attitude actions specified by the flight mission. The existing program angle des...

AI Technical Summary

Problems solved by technology

Therefore, there are many challenges in the design of aircraft program angles for flight missions with combined space-ground measurement and control requirements, and the previous program angle design methods are difficult to directly apply

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