Attitude maneuvering path planning method for avoiding frequency interference of low-orbit communication satellite

Abstract

The embodiment of the invention discloses an attitude maneuver path planning method for avoiding frequency interference of a low-orbit communication satellite, computer equipment and a storage medium, in one embodiment, the method comprises the following steps: S1, acquiring a current latitude argument of the low-orbit communication satellite, judging whether the low-orbit communication satellite arrives at a beam shutdown area or not according to the current latitude argument, and if so, performing a step S2; s2, planning an instruction attitude angle by adopting a segmented sine angular acceleration change rate planning method; s3, calculating constraint conditions of attitude maneuver path planning; and S4, selecting an objective function according to actual requirements, and solving planning path parameters of the objective function meeting constraint conditions. According to the embodiment, the flexible vibration in the attitude maneuver process can be effectively reduced, and the attitude control performance can be improved.

Description

technical field [0001] The present invention relates to the field of satellite attitude planning, and more particularly, relates to a method for planning an attitude maneuvering path of a low-orbit communication satellite to avoid frequency interference, a computer device and a storage medium. Background technique [0002] Limited by the orbital position and communication frequency resources of the satellite constellation system, different constellations often need to share communication frequencies, so the same communication frequencies between constellations interfere with each other. In order to avoid GEO or GSO satellite frequency interference and at the same time ensure the normal operation of the business, low-orbit communication satellites need to perform attitude maneuvers to avoid GEO or GSO satellite signal frequencies when they are operating near the equator. At present, the attitude bias strategy for frequency interference avoidance has received extensive attenti...

AI Technical Summary

Problems solved by technology

[0003] Usually, frequency avoidance is carried out by attitude bias strategy, and only the command attitude angle before the payload beam is turned off and the attitude angle before the beam is turned on after the maneuver is completed. At the start and end moments, the command attitude is discontinuous, which not only causes the controller input to saturate and affects the attitude tracking performance, but also for a satellite with a large-size flexible sail, the sudden change of the command attitude excites the vibration of the flexible sail, which affects the satellite The attitude tracking accuracy and stability of the system have extremely adverse effects

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