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A global multi-target all-time real-time monitoring system and method

A real-time monitoring system and multi-target technology, applied in the field of any multi-target all-time real-time monitoring system in the world, can solve the problems of limited application, low high-orbit resolution, and orbit revisit cycle that cannot meet the real-time monitoring requirements, and achieve The effect of saving manpower and material resources and using fewer stars for constellations

Active Publication Date: 2021-03-26
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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  • Description
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  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide a global multi-target all-time real-time monitoring system and method, to realize the simultaneous implementation of all-weather and all-weather video-like real-time monitoring for global multi-targets, and to solve the problems based on conventional Technical geostationary orbit monitoring low orbit cannot cover the whole world, high orbit resolution is low and application is limited; and other orbit revisit cycles cannot meet real-time monitoring needs and other problems

Method used

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  • A global multi-target all-time real-time monitoring system and method

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Embodiment Construction

[0044] Mobility Carrier Module Design

[0045] Realization of satellite dynamic imaging

[0046] Most of the existing research is based on the traditional static imaging method, that is, the imaging method of the satellite's directional push-broom to the ground. The satellite does not perform imaging during the attitude maneuvering process, the spatial orientation of the image plane is fixed to the ground, and the push-broom speed of the camera on the ground surface is consistent with the speed direction of the sub-satellite point. On-the-fly imaging is to adjust the direction of the optical axis in real time through the maneuvering of the attitude, which can realize the imaging task that the direction of the optical axis to the ground is constantly changing. The calculation formula is:

[0047]

[0048] In the formula, is the coordinates of the ground point in the WGS84 coordinate system; [X GPS Y GPS Z GPS ] T is the position coordinate of the satellite in the G...

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Abstract

The invention belongs to the field of satellite optical remote sensing, and discloses a global multi-target all-time real-time monitoring system and method. The system of the present invention includes a mobile carrier module, an image acquisition module, and a ground center module. The mobile carrier module is composed of 24 satellites evenly distributed on 4 orbital planes. The ascending node of the satellite is 10:30, and the orbital height is a sun-synchronous orbit. . Real-time monitoring of multiple targets can be carried out at the same time, the time resolution of photographic observation can be significantly improved, and the real-time monitoring effect similar to video can be achieved; and multiple observation targets can be customized by optimizing remote sensing constellations and users, and the attitude of satellites covering each target can be measured Maneuvering control can realize all-day video-like real-time monitoring of multiple targets around the world at the same time.

Description

technical field [0001] The invention belongs to the field of satellite optical remote sensing, and relates to a global arbitrary multi-target all-time real-time monitoring system and method based on imaging in motion. Background technique [0002] Space-based real-time monitoring. At present, only the geostationary orbit can realize all-day monitoring of fixed targets, and the orbit coverage and spatial resolution are limited. Due to the lack of agile maneuverability of existing remote sensing satellites, if a common sun-synchronous orbit is used to achieve a 10-minute revisit period for equatorial targets, at least 20 satellites are needed, and the time resolution of 10 minutes obviously does not meet the real-time monitoring requirements. In order to achieve global observation coverage and a temporal resolution of seconds, hundreds of satellites must be needed according to the traditional imaging mode, which will occupy a large amount of space resources and cause a large a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185H04N5/225
CPCH04B7/1851H04B7/18517H04N23/55H04N23/54
Inventor 吴俊李娜许云飞李玲隋叶叶程少园孙世君
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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