A precise derivation method of the center coordinates of the return light energy of the pyramid assembly

Abstract

A method for precise derivation of light-return energy center coordinates of a pyramid combined part relates to the field of precise measurement of large-size space and grounds. The method comprises the steps that (1) a total station equipped with a built-in automatic search and collimation function is adopted, wherein an optical-mechanical structure is coaxial, and recognition accuracy for a pyramid light-return energy center can be guaranteed; (2) a forward intersection measurement method is adopted, and rendezvous solution and calculation are carried out to data returned by automatic search, collimation and recognition of the pyramid light-return energy center implemented by the total station; (3) spatial coordinates of the pyramid light-return energy center and a standard cubic lens coordinate system are uniformly established in a spatial forward intersection measurement coordinate system; (4) the pyramid light-return energy center is described under an optical standard coordinate system, so that a passive cooperative target which is the pyramid light-return energy center as well as optical standard relations can be derived; and (5) derivation accuracy is increased through multiple measurements and accurate collimation. The method provided by the invention has the advantages that relations among different pyramids in a pyramid assembly can be measured accurately; and the coordinates of each pyramid light-return energy center can be precisely derived into the standard cubic lens coordinate system.

Description

technical field [0001] The invention relates to the field of large-scale space and ground precision measurement, in particular to a method for precisely deriving the coordinates of the return light energy center of a pyramid assembly. Background technique [0002] In the manned third-phase rendezvous and docking mission, the short-distance rendezvous and docking adopts the method of camera active light emission and passive cooperative target pyramid assembly to complete the position and attitude measurement of the tracker and the target during the docking process, and carry out Accurate rendezvous and docking, so the accuracy of the spatial position relationship of the return light energy center of the passive cooperative target pyramid is the key technology for the attitude adjustment of the two aircraft. [0003] In the existing method, the geometric center of the protective glass on the front face of the pyramid is mainly guided to the coordinate system of the reference c...

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Problems solved by technology

[0003] In the existing method, the geometric center of the protective glass on the front face of the pyramid is mainly guided to the coordinate system of the reference cube mirror through a three-coordinate machine or a universal tool microscope, but it is impossible to complete the derivation of the coordinate value of the return light energy center of the pyramid assembly, and The energy center of the rendezvous and docking sensor is the measurement center of the rendezvous and docking sensor, so the measurement method of the three-coordinate machine or the universal tool microscope seriously affects the measurement accuracy of the rendezvous and docking active imaging sensor; The geometric center of the surface protection glass is translated to the return light energy center through the theoretical value, and the derivation accuracy is poor

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