A Fault Discrimination Method for Ground Guidance Orbit Maneuvering of Rendezvous Spacecraft

Abstract

The invention relates to a method for judging the failure of a rendezvous spacecraft's ground guidance orbit maneuver. The method is based on the orbit measurement data before and after the maneuver of the spacecraft, and according to the orbit error propagation mechanism, the spacecraft orbit deviates from the nominal orbit range after the maneuver under normal circumstances; through the orbit The simulation calculates the nominal orbit after the orbit maneuver, and makes a difference between the measured orbit and the nominal orbit after the maneuver; by comparing the deviation with the normal deviation range, it is judged whether the actual orbit maneuver of the spacecraft is normal. The party uses the existing orbit measurement data to judge orbital maneuver faults, which does not hinder the existing spacecraft flight control process; the error influence is propagated through the analytical method, and the algorithm is simple and the calculation speed is fast.

Description

A method for judging failures of rendezvous spacecraft ground guidance orbit maneuvering Technical field The present invention relates to a kind of comprehensive utilization track measurement data and rendezvous spacecraft track error propagating mechanism to carry out track The method of road maneuver fault identification. Background technique [0002] The space rendezvous and docking process can generally be divided into stages such as ground guidance, short-range guidance, translation approaching and docking. exist In the ground guidance section, the tracking spacecraft performs several orbital maneuvers with the support of ground measurement and control to reach the target spacecraft several times below. Aiming point at ten kilometers. Each track maneuver control process of ground guidance section can be divided into following several steps: measure spacecraft maneuver front track track, calculate orbital maneuver parameters of spacecraft, upload orbital maneuver ...

AI Technical Summary

Problems solved by technology

Reasonable track maneuver fault identification method