A Joint Scheduling Method for Satellite-Earth TT&C Resources of Mid-Low Orbit Constellation Based on Satisfaction of Orbit Determination Constraints

A technology of constraint satisfaction and joint scheduling, which is applied to integrated navigators, special data processing applications, instruments, etc.

Inactive Publication Date: 2016-08-17
CHINA XIAN SATELLITE CONTROL CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, the existing TT&C resource scheduling methods are all for the purpose of data transmission. According to the review, there are no relevant reports and materials related to the solution to the problem of joint scheduling of satellite-ground TT&C resources supporting low-orbit satellite orbit determination.

Method used

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  • A Joint Scheduling Method for Satellite-Earth TT&C Resources of Mid-Low Orbit Constellation Based on Satisfaction of Orbit Determination Constraints
  • A Joint Scheduling Method for Satellite-Earth TT&C Resources of Mid-Low Orbit Constellation Based on Satisfaction of Orbit Determination Constraints
  • A Joint Scheduling Method for Satellite-Earth TT&C Resources of Mid-Low Orbit Constellation Based on Satisfaction of Orbit Determination Constraints

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Embodiment Construction

[0099] The present invention will be described in further detail below in conjunction with specific examples.

[0100] The scenario in this example is as follows:

[0101] The space scene consists of 100 medium and low orbit satellites. Among them: 24 medium-orbit satellites form the Walker24 / 3 / 1 constellation, the orbital height is 21528km, and the orbital inclination is 55°; each satellite can establish an inter-satellite link at the same time; 24 sun-synchronous orbit satellites, the orbital height is 500km to 2000km, with an orbital inclination of about 98°; 52 low-orbit satellites, with an orbital altitude of 500km to 2000km, and an orbital inclination of 60° to 100°.

[0102] The ground scene consists of 7 ground stations. Among them: 6 ground stations are equipped with single-beam measurement and control equipment, and 1 ground station is equipped with 4-beam measurement and control equipment. The 7 ground stations are located in the northeast, northwest, midwest, sout...

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Abstract

The invention discloses a method for joint scheduling of satellite-earth measurement and control resources of a low-orbit constellation based on orbit determination constraint satisfaction, and belongs to the field of joint scheduling of satellite-ground measurement and control resources. The method includes: ① building a geometric visible model; ② building a link visible model; ③ establishing constraints for orbit determination; ④ preprocessing; ⑤ determining resource allocation principles; Compared with the prior art, the present invention has the advantages that: the method has the characteristics of reasonable scheduling results, efficient scheduling process, and strong versatility of the scheduling method. It solves the resource scheduling problem of space-ground-based integrated measurement and control. Realized the transition from domestic ground-based measurement and control to space-ground joint measurement and control.

Description

technical field [0001] The invention mainly relates to the field of joint scheduling of satellite-ground measurement and control resources, in particular to a method for joint scheduling of satellite-ground measurement and control resources supporting low-orbit constellation orbit determination. Background technique [0002] Satellite constellation (referred to as "constellation") refers to a satellite system that is composed of multiple satellites, the satellite orbit forms a stable spatial geometric configuration, and the satellites maintain a fixed space-time relationship, and is used to complete specific space missions. The orbital altitude of a single satellite in the low-or-medium orbit constellation is kept within the range of 500km to 25,000km, and the main space missions it undertakes include: communication, navigation, and earth observation. [0003] The measurement and control system is responsible for the measurement and control of the satellite from the stage of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00G06F17/50G01C21/24
Inventor 李晶余培军张天骄耶刚强陈建荣朱俊刘建平白剑谷小松姜博樊恒海郭启旺
Owner CHINA XIAN SATELLITE CONTROL CENT
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