Control terminal and system and method for simultaneously pointing to two ground stations by satellite-ground double optical paths

A technology of pointing system and ground station, which is applied to the simultaneous pointing method and system of satellite-ground dual optical path to ground dual-station, and the control terminal field, which can solve the problems that cannot be realized

Active Publication Date: 2018-04-03
SHANGHAI ENG CENT FOR MICROSATELLITES
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Problems solved by technology

[0003] For quantum science experiment satellites, the satellite-ground alignment a...

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  • Control terminal and system and method for simultaneously pointing to two ground stations by satellite-ground double optical paths
  • Control terminal and system and method for simultaneously pointing to two ground stations by satellite-ground double optical paths
  • Control terminal and system and method for simultaneously pointing to two ground stations by satellite-ground double optical paths

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Embodiment Construction

[0071] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0072] It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic ideas of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in ...

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Abstract

The invention provides a control terminal and a system and method for simultaneously pointing to two ground stations by satellite-ground double optical paths. The method includes: enabling a secrete key communication equipment to point to a first ground station; calculating an azimuth angle and a pitch angle, under a load equipment coordinate system, of a two-dimensional rotating plate on an entanglement emitter which points to a second ground station; setting the two-dimensional rotating plate according to the azimuth angle and the pitch angle, under the load equipment coordinate system, of the two-dimensional rotating plate so as to enable the entanglement emitter to point to the second ground station under drive of the two-dimensional rotating plate. The control terminal and the systemand method for simultaneously pointing to the two ground stations by the satellite-ground double optical paths have advantages that high-precision satellite-ground alignment is realized through the double optical paths pointing to the two ground stations so as to meet effective quantum communication demands of satellites, and effectiveness of quantum satellite in-orbit experiments is guaranteed.

Description

technical field [0001] The invention relates to the technical field of quantum satellites, in particular to a method, system, and control terminal for simultaneous pointing of satellite-ground dual optical paths to ground dual-stations. Background technique [0002] In the prior art, radio or visible light is usually used to capture or align the aircraft and the ground station, and the pointing accuracy usually achieved is not high, about 0.3-0.5 degrees. This kind of precision can be achieved only by adopting classical methods. [0003] For quantum science experimental satellites, the satellite-ground alignment accuracy is required to reach 3.5u radians, which cannot be achieved by classical methods. Therefore, how to align the satellite with high precision has become one of the technical problems to be solved urgently. Contents of the invention [0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a me...

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Application Information

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IPC IPC(8): H04B7/185H04L9/08H04B10/70
CPCH04B7/18513H04B10/70H04L9/0852
Inventor 朱振才邓雷齐金玲万松蒋虎余金培周依林
Owner SHANGHAI ENG CENT FOR MICROSATELLITES
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