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A method for realizing the pointing attitude of a quantum satellite to a ground optical station

An implementation method and technology of ground measurement and control stations, applied in the field of realizing the pointing attitude of quantum satellites to ground optical stations, can solve the problem that the characteristics of quantum polarization state cannot meet the requirements of carrying out effective scientific experiments, etc.

Active Publication Date: 2021-06-29
INNOVATION ACAD FOR MICROSATELLITES OF CAS +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for realizing the pointing attitude of the quantum satellite to the ground optical station, so as to solve the problem that the quantum polarization state characteristics existing in the on-orbit test of the quantum satellite load cannot meet the requirements of carrying out effective scientific experiments

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  • A method for realizing the pointing attitude of a quantum satellite to a ground optical station
  • A method for realizing the pointing attitude of a quantum satellite to a ground optical station
  • A method for realizing the pointing attitude of a quantum satellite to a ground optical station

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Embodiment 1

[0052] This embodiment provides a method for realizing the pointing attitude of a quantum satellite to a ground optical station. The method for realizing the pointing attitude of a quantum satellite to a ground optical station involves a ground measurement and control center, a scientific application system, and a quantum satellite, wherein: the scientific application system is used for Provide a scientific experiment plan, including the configuration of the ground optical station participating in the scientific experiment, the geographic coordinates of the ground optical station, and the forecast data of the entry and exit time of the quantum satellite transiting the ground optical station; the quantum satellite includes a satellite platform, and the satellite The key communicator, entanglement source, entanglement transmitter, scientific experiment control and processor carried by the platform; the ground measurement and control center calculates the first attitude guidance la...

Embodiment 2

[0076] This embodiment also provides a method for realizing the pointing attitude of the quantum satellite to the ground optical station, such as figure 1 As shown, the method for realizing the pointing attitude of the quantum satellite to the ground optical station involves a ground measurement and control center, a scientific application system and a quantum satellite, wherein: the scientific application system is used to provide a scientific experiment plan, including the ground optical station participating in the scientific experiment Configuration, geographical coordinates of the ground optical station, and the forecast data of the entry and exit time of the quantum satellite transiting the ground optical station; the quantum satellite includes a satellite platform, and a key communicator, an entanglement source, and an entanglement launch carried by the satellite platform machine, scientific experiment control and processing machine; the ground measurement and control ce...

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Abstract

The invention provides a method for realizing the pointing attitude of a quantum satellite to a ground optical station. The scientific application system formulates a scientific experiment plan, including the configuration of the ground optical station participating in the scientific experiment, the geographical coordinates of the ground optical station and other parameters, and the quantum satellite transit scientific experiment. The entry and exit time forecast data of the ground optical station involved in the plan; the quantum satellite includes a satellite platform, and the satellite platform carries optical loads such as a key communicator, an entanglement source, and an entanglement transmitter; the satellite involved in the present invention points to the ground optical station. Note that the attitude guidance law includes two parts: the first attitude guidance law and the second attitude guidance law, with the second attitude guidance law first and the first attitude guidance law in the latter order to form a satellite Upnote attitude guidance law for ground optical station pointing. Through the strategy of satellite platform yaw attitude maneuvering in orbit, the problem of maintaining the polarization state of quantum satellite optical devices encountered in quantum satellite scientific experiments can be solved.

Description

technical field [0001] The invention relates to the technical field of quantum satellites, in particular to a method for realizing the pointing attitude of a quantum satellite to a ground optical station. Background technique [0002] When the quantum science experiment satellite conducts satellite-to-ground quantum communication experiments, the satellite platform needs to point the attitude of a specific ground optical station. On this basis, the payload uses its own rotation mechanism and algorithm to complete high-precision positioning of the ground station within a limited maneuvering range. Pointing, so as to ensure that the quantum science experiment satellite carries out effective satellite-ground communication. Quantum communication uses the quantum polarization state to carry information, and the ground optical station and the quantum satellite share the same reference frame to compare the quantum polarization state, thereby realizing quantum communication. During...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/10B64G7/00
CPCB64G1/10B64G7/00
Inventor 蒋虎邓雷余金培李晓红
Owner INNOVATION ACAD FOR MICROSATELLITES OF CAS