Double-base-line non-cooperative target binocular measurement system

Abstract

The invention discloses a double-base-line non-cooperative target binocular measurement system, which comprises a group of long-base-line binocular camera, a group of short-base-line binocular camera, a data processing computer and two groups of active illuminating systems. The invention is a non-contact type non-cooperative target oriented image measurement system, no cooperative measurement object is mounted on a to-be-measured target, characteristic point extraction and determination measurement are carried out through the image stereoscopic vision principle of the binocular camera, to reduce rendezvous and docking conditions and adapt to rendezvous and docking capture of a completely unknown target. The invention adopts long and short base line binocular cameras to cover long and close ranges of the measurement region, designs the illuminating system corresponding to the long and short base lines, and adopts the active illuminating system to illuminate the non-cooperative target so as to reduce measurement system stray sunlight interference and work normally under external light source-free conditions.

Description

technical field [0001] The invention relates to a non-cooperative target binocular measurement system, in particular to a dual-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 targe...

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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