Simulation device for dual-camera dynamic rotary scanning stereoimaging

Abstract

A simulation device for dual-camera dynamic rotary scanning stereoimaging belongs to the technical field of space optical remote sensing, and is used for analyzing ground simulation stereoimaging. Thesimulation device comprises a simulation ground unit which simulates the surface of earth rotation in the actual imaging process and a simulation imaging unit which simulates a remote sensing satellite in the actual imaging process, wherein the simulation imaging unit rotationally scans the simulation ground unit, and a stereo image is obtained by analyzing the two scanned images. Imaging simulation is more flexible, the device can be fixedly installed according to simulation conditions, and the degree of freedom of installation and adjustment is large; a three-dimensional physical model is used as an imaging target, so that multi-element imaging simulation of various complex terrains can be realized, and the imaging simulation is closer to the real situation; the three-dimensional physical model driven by a driving wheel and a roller lead screw nut driven by a driving motor realize simulation of earth rotation and satellite motion attitudes respectively, so that imaging simulation ismore real, and the accuracy of a simulation result is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of space optical remote sensing, and in particular relates to a space-based dual-camera dynamic rotation scanning stereoscopic imaging simulation device. Background technique [0002] Relying on high-precision attitude adjustment technology and diverse working modes, in recent years, agile satellites, as emerging earth remote sensing observation satellites, have been active in various fields such as meteorology, military affairs, and transportation. Using agile satellites to achieve complex earth remote sensing observations has It has become the development direction of earth remote sensing observation at this stage. The existing agile optical imaging modes mainly focus on conventional push-broom, along-track stitching, and along-track stereoscopic imaging. Among them, the along-track push-broom stereoscopic imaging can obtain the characteristics of different distances from the images taken in different dire...

AI Technical Summary

Problems solved by technology

Theoretically, it is feasible to use the unidirectional rotation of the satellite itself to reduce the difficulty of satellite attitude control and the influence of the earth's rotation to a certain extent. Unable to verify its feasibility

Relevant research fields at home and abroad are mainly focused on the push-broom dual-camera stereo imaging mode along the track. There is a lack of a simulation system for dynamic scanning stereo imaging, which cannot provide powerful guidance for the analysis of high-resolution ultra-wide rotary scanning imaging quality.

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