High-orbit target approaching observation method based on finite time constraint

Abstract

The invention discloses a high-orbit target approaching observation method based on finite time constraint. The method comprises: determining the relative position relation between a high-orbit service spacecraft and a target spacecraft; determining an approaching mode, an observation moment and an observation position; calculating the relative longitude drift rate, the orbital transfer amount andthe orbital transfer moment; the high-orbit service spacecraft realizing the rounding and floating of the orbit through twice orbital transfer; calculating a traversing moment set of the high-orbit service spacecraft traversing the target orbit plane; calculating an included angle between the orbit plane of the high-orbit service spacecraft and the target orbit plane; selecting an intermediate moment of the crossing moment set to carry out orbital transfer on the high-orbit service spacecraft, so that an orbital plane of the high-orbit service spacecraft coincides with a target orbital plane;and the high-orbit service spacecraft running on the new orbit after orbital transfer for 12 hours before a preset observation moment; and the high-orbit service spacecraft reaching a predetermined observation position through one-time orbital transfer. According to the method, the problems of non-standardization and complex illumination condition constraints of the current approach process method are solved, and the development of subsequent high-orbit observation tasks is supported.

Description

technical field [0001] The invention relates to a limited-time-constrained approaching observation method for a high-orbit target, which belongs to the technical field of aerospace and is used for a high-orbit service spacecraft to perform approaching observation on a high-orbit target. Background technique [0002] It is generally believed that the ideal geostationary orbit (GEO) is a circular orbit with an orbital inclination of 0° and an orbital radius of 42164 km. The orbital period of GEO is the same as the rotation period of the earth. Strictly speaking, there is only one GEO in space. A GEO satellite can cover about 40% of the earth's surface. When three satellites are evenly arranged on the GEO, except for the two poles of the earth, the rest of the area can be covered. Since the satellites running on GEO are stationary relative to any point on the ground, the ground station can easily track them, which provides convenience for many satellite applications. The milit...

AI Technical Summary

Problems solved by technology

[0007] At present, my country has not established a complete space-based space target observation system, and cannot realize all-weather, full-orbit, and short-distance space target monitoring

Images