Splicing implementation device for linear-planar array mixed configuration charge coupled device (CCD) focal surfaces of surveying and mapping camera

Abstract

The invention discloses a splicing implementation device for linear-planar array mixed configuration charge coupled device (CCD) focal surfaces of a surveying and mapping camera and belongs to the technical field of space optical remote sensing. The device comprises an image plane substrate, a planar array CCD grinding cushion, four planar array CCD boxes, four planar array CCDs, four planar array CCD pressing plates, a linear array CCD retainer, a linear array CCD, a linear array CCD pressing plate and a linear array CCD heat conduction sheet, wherein the planar array CCDs are fixed in the four planar array CCD boxes through two planar array CCD pressing plates; the four planar array CCD boxes are fixed at four corners of the image plane substrate; the planar array CCD grinding cushion is fixed between the planar array CCD boxes and the image plane substrate; the linear array CCD is fixed on the image plane substrate through the linear array CCD retainer and the linear array CCD pressing plate; and the linear array CCD heat conduction sheet is fixed on the linear array CCD pressing plate. According to the splicing implementation device, a requirement of the surveying and mapping camera on the ground resolution being 5m is met; the photogrammetric survey can be realized without ground control points; a requirement on the satellite attitude stability is reduced; and the surveying and mapping accuracy is improved.

Description

technical field [0001] The invention belongs to the technical field of space optics remote sensing, and in particular relates to a splicing realization device for a surveying and mapping camera line-area array mixed with a CCD focal plane. Background technique [0002] The transmission-type three-dimensional surveying and mapping satellite is an effective means of obtaining global geospatial information. It is used to quickly obtain three-dimensional three-dimensional images on a global scale. Through ground surveying and mapping processing, it can implement accurate three-dimensional positioning of strike targets and generate basic geographic information of the global framework. Provide fast and accurate geographic information support for global emergency operations and joint operations under the conditions of modern information warfare. [0003] The three-line array three-dimensional mapping camera is the key optical payload of the three-dimensional surveying and mapping s...

AI Technical Summary

Problems solved by technology

[0004] The main reason for the low mapping accuracy of the traditional three-line array CCD camera is that the three-line array CCD flight line is composed of triangular locks with discrete intervals of "orientation time", and there are no special restrictions on the integration of many triangular locks in the adjustment. , especially the lack of effective joint point conditions between triangle lock models

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