Orbit planning method for large elliptical orbit and small-inclination-angle circular orbit

Abstract

The invention discloses an orbit planning method for a large elliptical orbit and a small-inclination-angle circular orbit, belongs to the technical field of orbit planning, and aims at solving the problem of orbit planning according to selected target area information, constraint conditions of orbit regression characteristics, constraint conditions of reconnaissance loads, launching deployment parameters, an accurate earth motion model and other data. And planning and designing of a large elliptical orbit and a small-inclination-angle circular orbit for detection of different types of target areas are completed. According to the design of the large elliptical orbit and the small-inclination-angle circular orbit, traversal is carried out at specific intervals for angle values within an effective inclination angle range, and longitude values of sub-satellite point trajectories of a satellite orbit corresponding to each inclination angle value i on latitude circles of multiple transit target points are calculated; and the difference between the geocentric longitude of the target point and the geocentric longitude value is calculated when the sub-satellite point trajectory passes through the latitude circle of the punctuation. According to the invention, orbit scheme design can be carried out on a large ellipse (small-dip-angle circle) orbit, and rapid and effective detection of a target area is realized.

Description

technical field [0001] The invention relates to the technical field of orbit planning, in particular to an orbit planning method for a large elliptical orbit and a small inclination circular orbit. Background technique [0002] The difference between conventional earth observation satellite orbit planning and emergency satellite launch orbit planning lies in the different mission design concepts. The conventional earth observation mission first launches the earth observation satellite, and after the specific observation target is given, the satellite is sent into the observation orbit through orbital maneuvering to observe the target. Satellite orbit planning for emergency satellite launch missions is driven by the needs of space missions. Satellite orbit planning is usually carried out according to the requirements of reconnaissance target missions, and the parameters of satellite launch orbits and operating orbits are weighed so that they can be quickly launched under the ...

AI Technical Summary

Problems solved by technology

[0004] The traditional emergency satellite launch orbit planning is mainly aimed at the planning and design of the satellite orbit after orbiting, usually without comprehensive consideration of the influence of various factors such as the launch orbit model, orbit return characteristics, illumination conditions constraints of optical loads, and the complex motion model of the earth.

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