Ground verification system for relative navigation of spatial non-cooperative target

Abstract

The invention provides a space non-cooperative target relative navigation ground verification system, which comprises a double-star simulator, a visual relative navigation device, a dynamics simulation machine, an electric control device and a comprehensive monitoring device, and is characterized in that the visual relative navigation device is used for acquiring pose information of the double-star simulator for navigation calculation; a navigation result is obtained and sent to the dynamics simulation machine; the dynamics simulation machine is used for performing in-orbit orbit attitude dynamics simulation on the tracking star and the target star according to the received navigation result, determining real-time dynamics data of the tracking star and real-time dynamics data of the target star and sending the real-time dynamics data to the electric control device; the comprehensive monitoring device is used for generating a control instruction and sending the control instruction to the double-star simulator. The system can effectively perform high-precision verification on the relative navigation algorithm of the non-cooperative target, and the applicability of the system is improved.

Description

technical field [0001] The invention relates to the field of aircraft ground simulation experiments, in particular to a space non-cooperative target relative navigation ground verification system. Background technique [0002] With the rapid development of space technology, the research on non-cooperative targets is gradually heating up. Among them, non-cooperative targets generally refer to a class of space targets that cannot provide effective cooperative information, such as failed or malfunctioning spacecraft, abandoned spacecraft, enemy spacecraft, space debris, comets, and asteroids. Since this type of non-cooperative target has the characteristics of no specific identification, no response device, inability to perform action coordination, and is often in a rolling state of failure, the research on the location of non-cooperative targets is particularly important for the development of on-orbit services. [0003] At present, one way in related technologies is to use a...

AI Technical Summary

Problems solved by technology

[0003] At present, one way in related technologies is to use a high-precision six-degree-of-freedom coordinate translation platform, a high-precision splicable guide rail and a camera translation platform to construct a semi-physical simulation system based on a moving guide rail. However, this system only uses a CubeSat model as a non- The prototype of the cooperative target, and is affected by the range of motion and performance of the platform. The range of motion of the non-cooperative target is small and only moves in parallel. It is difficult to meet the increasing demand for ground simulation in terms of accuracy, and it has great limitations.

Another way is to map the relative position and orientation information of the two stars to two independent six-degree-of-freedom turntables in a scaled manner, and obtain the target position and velocity values ​​through the relative navigation measurement equipment. However, this method is limited by the range of motion of the platform, structure and Influenced by performance, the simulation accuracy of the relative motion of the two stars is insufficient, and it lacks the ability to perceive non-cooperative targets, and the applicable scenarios are limited

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