Space target visibility analysis method based on STK model

A space target and space coordinate technology, applied in the field of space target detection, can solve problems such as not considering the limitation of observation satellite observation

Inactive Publication Date: 2014-09-10
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology

However, it does not consider the limitations of the observation satellite itself on observation, such as: the installation position of the optical camera, the detection field of view of the optical camera, the influence of the sensitivity of the camera itself on the observation, etc.

Method used

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  • Space target visibility analysis method based on STK model
  • Space target visibility analysis method based on STK model
  • Space target visibility analysis method based on STK model

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the drawings.

[0023] Step 1: See attached figure 1 , Input the target and the orbit information of the observation satellite into the STK software to establish the corresponding orbit model. Add an optical camera to the observation satellite, set the detector's working mode, type of field of view, angle of view, axis of sight and other parameters to make it consistent with actual working conditions;

[0024] Step 2: Run STK (Satellite Tool Kit) to check whether the target and the observation satellite are moving normally. If it is not normal, recheck the set parameters and run again until it runs normally. After confirming that the orbit is correct, set the space vector and angle information required for later calculations. As attached figure 2 As shown, the vectors Sun and Moon need to point to the sun and the moon, and the angle S between the sun, the target and the observation satellite 1 , The ...

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Abstract

The invention discloses a space target visibility analysis method based on an STK model. According to the method, the influences of orbit condition of an observed object, sun, moon, installation site of an optical camera, and field angle upon observation are analyzed and calculated, irradiance that the observed object experiences at an observation satellite, and whether or not the observed object can be successfully observed by the optical camera is judged comprehensively. The method is provided for judging whether or not a ground digital simulation space target can be observed.

Description

Technical field [0001] This patent belongs to the field of space target detection, and relates to a method for judging target visibility based on space-based optical observation. It is suitable for simulation and visibility judgment of space target detection. Background technique [0002] There are basically two ways to detect space targets: ground-based detection and space-based detection. Ground observation equipment has the advantages of volume, weight, power consumption and other conditions, while the interference of the earth's atmosphere and the limitation of fixed stations are its obvious shortcomings. Space-based optical observation is not restricted by the airspace, and is relatively close to the target. It is easy to obtain the image characteristics of the target, which greatly enhances the ability to observe the target. [0003] The visibility analysis of on-orbit targets for space-based optical observation is one of the key issues in space-based optical observation sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 丁国鹏凌丽郑伟波张涛李勉洪
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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