On-orbit service relative navigation experiment platform and work method

Abstract

The invention discloses an on-orbit service relative navigation experiment platform and a work method. The on-orbit service relative navigation experiment platform comprises a three-axis electric turntable, a three-dimensional electric transversely-moving platform, a simulation control computer, a fault spacecraft equivalent device, a binocular stereo vision system and a navigation computer system. In the process of an experiment, the simulation control computer is utilized to generate an experiment scene, the three-axis electric turntable is controlled to simulate relative posture motion, and the three-dimensional electric transversely-moving platform is controlled to stimulate relative position motion; a pulse circuit triggers the binocular stereo vision system to collect images of the fault spacecraft equivalent device in a cycled mode, and a navigation computer processes the binocular images, conducts navigation and target parameter identification calculation through a relative navigation algorithm module to be verified, uploads the navigation and parameter identification result to the simulation control computer and conducts comparison and evaluation with the truth value set in the stimulation scene. The experiment platform is low in cost, high in simulation fidelity and capable of meeting the requirement of a relative navigation algorithm in quick validation of spacecraft on-orbit service.

Description

technical field [0001] The invention relates to a low-cost semi-physical simulation experiment platform that can be used for the experimental verification of relative navigation algorithms, and belongs to the technical field of relative navigation of non-cooperative spacecraft. Background technique [0002] Human space technology is developing rapidly, and increasingly complex space missions put forward higher and higher requirements for the performance and reliability of space vehicles. Especially in the complex space environment, how to ensure the sustained and stable orbital operation of the spacecraft has become a major technical problem in the field of aerospace. As we all know, design defects, launch failures, space high-energy particles and other reasons may cause the space vehicle to malfunction, fail, or even be abandoned, unable to perform the target mission; on the other hand, the exhaustion of fuel and the aging failure of components may shorten the life of satel...

AI Technical Summary

Problems solved by technology

[0007] At present, there are two main ways to verify the relative navigation algorithm of on-orbit service on the ground: one is to simulate the relative motion between two spacecraft by using a large manipulator and guide rail represented by DLR in Germany; Floating platform, two of which are translation degrees of freedom, and the other one is rotation degrees of freedom, it is not yet possible to fully simulate 3 translation degrees of freedom and 3 rotation degrees of freedom

And both of these experimental methods require high cost input

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