Imaging simulation method and device for space-based space target

Abstract

The invention provides an imaging simulation method and an imaging simulation device for a space-based space target. The method comprises the following steps: (1) calling an interface function stkInit to perform interconnection and initialization on an STK (Satellite Tool Kit) and a Matlab (matrix laboratory); (2) calling STK / Connect in the STK through a Matlab command line to build a scene, and setting parameters, wherein the parameters comprise attitudes and orbits of a target satellite and a monitoring satellite, and a focused imaging time period; (3) calling the STK / Connect through the Matlab command line to build an illumination angle and a relative vector of the monitoring satellite pointing at the target satellite; (4) outputting two-satellite rendezvous relative information with preset step length in the imaging time period; (5) acquiring an imaging arc section according to the two-satellite rendezvous relative information. By virtue of the combination of the accurate orbit extrapolation capacity of the STK and the flexible programming capacity and data-handling capacity of the Matlab, the focused information of space-based imaging can be comprehensively simulated and calculated, the calculation accuracy is high, and the operation is convenient.

Description

technical field [0001] The invention relates to the technical field of space-based space target optical imaging, in particular to a space-based space target imaging simulation method and device. Background technique [0002] Space target optical imaging simulation is of great value and significance in the development of space-based optical observation system. There are mainly two methods in the existing space-based space target imaging simulation planning technology. The first method: use the Access module in STK (Satellite Tool Kit) to conduct visibility analysis, and then determine the imaging arc segment; this method is mature, easy to operate and has high calculation accuracy, but it can only output Information such as the relative distance, relative azimuth angle, and relative elevation angle of the satellite cannot be given such information as the sun's illumination angle, azimuth angle rate, elevation angle rate, and satellite sub-satellite point latitude that are co...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a space-based space target imaging simulation method and device, through the STK / Matlab joint simulation planning, make full use of the precise orbit extrapolation model in STK, and combine the powerful and flexible numerical calculation ability of Matlab to solve the problem Problems existing in current technology in simulation of space-based space target imaging arc

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