Asteroid imaging simulator at deep space exploration transition stage

An imaging simulation and asteroid technology, applied in the field of simulators, can solve the problem that the stellar simulation method does not consider the asteroid star table, background noise platform jitter, etc.

Active Publication Date: 2011-07-06
BEIJING INST OF CONTROL ENG
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Problems solved by technology

[0003] First of all, the asteroid imaging simulation during the deep space exploration cruising period is a new concept; the traditional star simulation method does not consider the asteroid star catalog, background noise, platform shake and other issues

Method used

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  • Asteroid imaging simulator at deep space exploration transition stage
  • Asteroid imaging simulator at deep space exploration transition stage
  • Asteroid imaging simulator at deep space exploration transition stage

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Embodiment Construction

[0040] The present invention is described in detail below in conjunction with accompanying drawing and embodiment:

[0041] Asteroid simulation requires two star catalogs: the asteroid star catalog and the stellar star catalog. Magnitude analysis, magnitude conversion of sensor instruments, establishment of a single-star Gaussian imaging model under static conditions, and completion of static imaging analysis combined with technologies such as field of view, orbital position, and coordinate conversion; due to long exposure time, background noise, angular movement of the platform, Jitter has a great impact on imaging, so the imaging model of the moving platform must be considered; imaging simulation calculations are completed on the basis of static models and dynamic models. Finally, the hardware of the star simulator is improved to realize the projection of the small field of view, and the simulation of the low-brightness star magnitude is realized by using the optical attenua...

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Abstract

The invention belongs to simulators, more particularly relates to an asteroid imaging simulator at the deep space exploration transition stage. The asteroid imaging simulator has the advantages that an asteroid sensor is a key part for independent navigation at the deep space exploration cruising stage, and asteroid imaging stimulation technique is needed for supporting at both the algorithm study stage and the sensor ground experiment stage, therefore, the asteroid imaging simulator is one of important guarantee conditions for success development of asteroid navigation sensors, and in addition, partial outcomes can be popularized to be used for development on highly dynamic star simulator. Currently, the asteroid imaging simulator passes the ground examination of project account, and can meet the requirement of algorithm verification.

Description

technical field [0001] The invention belongs to a simulator, in particular to an asteroid imaging simulator for a deep space exploration transfer section. Background technique [0002] Asteroids are the main reference targets in the cruising phase of deep space exploration. Missions such as Deep Space One and Deep Space Impact all use asteroid sensors as key equipment for autonomous navigation. In the pre-research algorithm research stage, asteroid simulation image input is required for algorithm verification, and the special effects produced by asteroid sensor images due to long exposure time and platform movement are quite different from traditional star simulations, and new technologies are needed to tackle key problems. The research group has carried out asteroid star map simulation research on the basis of star simulation, successfully realized the simulation of asteroid star map and proposed the realization scheme of the simulator. [0003] First of all, the asteroid ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64G7/00
Inventor 王立周建涛尉志军郝云彩
Owner BEIJING INST OF CONTROL ENG
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