A single-baseline non-cooperative target binocular measurement system

Abstract

The invention discloses a single-baseline non-cooperative target binocular measurement system, which comprises a single-baseline binocular camera, an active lighting system and a data processing computer. The illumination emission angle is greater than or equal to the field angle of a single camera, and the data processing computer processes the imaging of the single baseline binocular camera. The present invention is a non-contact image measurement system for non-cooperative targets. For completely non-cooperative targets or semi-cooperative targets, there is no cooperative measurement object installed on the measured target. The extraction and confirmation measurement of feature points can reduce the conditions for rendezvous and docking, and is suitable for rendezvous, docking and capture with completely unknown targets; the invention uses an active lighting system to illuminate non-cooperative targets to reduce solar stray light interference in the measurement system and Normal operation without external light source.

Description

technical field [0001] The invention relates to a non-cooperative target binocular measurement system, in particular to a single-baseline non-cooperative target binocular measurement system, which belongs to the field of non-contact visual measurement of non-cooperative targets and is applicable to the movement of non-cooperative spacecraft in the autonomous approach process The relative measurement of parameters can also be used for the relative measurement of motion parameters of non-cooperative targets on the ground at ultra-short distance. Background technique [0002] In autonomous spacecraft rendezvous and docking missions, optical imaging sensors are currently used internationally to measure the relative position and attitude of targets within a distance of tens of meters before docking. Therefore, it is necessary to install marker lights or reflectors on the target spacecraft, install measuring equipment on the rendezvous spacecraft to measure them, establish the tar...

AI Technical Summary

Problems solved by technology

In order to make the measurement system cover the measurement range of tens of meters to sub-meters, the current measurement technology in the field of aerospace technology is limited to the measurement of cooperative targets. Active target generators or passive corner reflectors are used as cooperative targets, and monocular cameras can be used. The position measurement of the target relative to 6 degrees of freedom can still meet the measurement requirements for the cooperative target binocular measurement system in principle, but it is more complicated than the monocular camera

[0003] however, for non-cooperative targets, that is, without any pre-installed markers, to achieve the rendezvous and docking mentioned above, it is not possible to use some spatially distributed marker lights or known measurement objects such as reflectors as reference targets

For the rendezvous and docking measurement of non-cooperative targets, in order to make the measurement system cover the measurement range of tens of meters to submeters, aerospace is still exploring in this technical field, and there is no very mature technology

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