Small celestial body attachment convex trajectory guidance method
The invention discloses a small celestial body attachment convex trajectory guidance method, relates to a small celestial body attachment guidance method, and belongs to the technical field of deep space exploration. The convex trajectory guidance law is composed of an energy optimal item and a slid...
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creator | ZHANG CHENGYU LONG JIATENG ZHU SHENGYING CUI PINGYUAN LIANG ZIXUAN |
description | The invention discloses a small celestial body attachment convex trajectory guidance method, relates to a small celestial body attachment guidance method, and belongs to the technical field of deep space exploration. The convex trajectory guidance law is composed of an energy optimal item and a sliding mode item, for small celestial body dynamics coupling, concave-convex parts of a three-dimensional space trajectory are defined on two mutually orthogonal planes of a landing point fixed connection coordinate system, and by changing an acceleration coefficient and the fixed constant accelerationtime of energy optimal guidance, the attachment track keeps convex or convex from concave; for the situation that the magnitude and direction of the small celestial body gravitation change along withthe position of a land device, the gravitation of the current period is predicted and counteracted when each guidance period starts. In order to cope with interference, the lander trajectory in the current period is predicted |
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language | chi ; eng |
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subjects | AIRCRAFT AVIATION CALCULATING COMPUTING COSMONAUTICS COUNTING ELECTRIC DIGITAL DATA PROCESSING PERFORMING OPERATIONS PHYSICS TRANSPORTING VEHICLES OR EQUIPMENT THEREFOR |
title | Small celestial body attachment convex trajectory guidance method |
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