Double-sided array stereoscopic mapping system based on small satellite platform

Abstract

The double-sided array three-dimensional surveying and mapping system based on the small satellite platform relates to a double-sided array three-dimensional surveying and mapping system, which solves the problems of complex processing methods in existing surveying and mapping systems, high requirements for the attitude stability of the satellite platform, and inconvenient data processing that cannot be transmitted in real time. and other issues, including star system, measurement and control system, attitude and orbit control system, power supply system, thermal control system, first star sensor, second star sensor, data transmission system, three-axis gyro, front-view area camera, rear The on-track angle detection system of the area array camera and the front and rear optical systems. The front-view area array camera and the rear-view area array camera share the imaging and focusing controller; the on-track angle detection system of the front- and rear-view optical system is used to detect the change of the on-track angle of the front-view optical system and the rear-view optical system in real time. The invention combines satellite-borne integration and low-orbit operation technology to carry out large-scale double-array three-dimensional surveying and mapping research based on small satellites, reduce the satellite attitude and orbit measurement accuracy requirements, and realize no-control-point surveying and mapping.

Description

technical field [0001] The invention relates to a double-sided array three-dimensional surveying and mapping system, in particular to a double-sided array three-dimensional surveying and mapping system based on a small satellite platform that can realize large-scale three-dimensional surveying and mapping. Background technique [0002] The main task of transmission-type large-scale three-dimensional surveying and mapping satellites is to obtain three-dimensional image information of the earth's surface, implement precise positioning of targets, and measure and produce digital topographic maps, digital elevation models and digital image maps. With the single line array technology system, it is necessary to construct the same-orbit or different-orbit stereoscopic images through side swing, which requires extremely high mobility of the satellite platform and high requirements for the attitude stability of the platform. The dual-line array photography mode can achieve continuous...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a double-sided array three-dimensional surveying and mapping system based on a small satellite platform in order to solve the problems of the existing surveying and mapping system, such as complex processing methods, high requirements for the attitude stability of the satellite platform, and inconvenient data processing that cannot be transmitted in real time.

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