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Reliable multi-source orbit extrapolation autonomous selection method

A reliable orbital extrapolation technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as large orbital data errors

Active Publication Date: 2021-10-22
BEIJING INST OF CONTROL ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If there is no external orbit data correction for a long time, the orbit extrapolation calculation will diverge, and the error of the obtained orbit data will gradually increase

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  • Reliable multi-source orbit extrapolation autonomous selection method
  • Reliable multi-source orbit extrapolation autonomous selection method
  • Reliable multi-source orbit extrapolation autonomous selection method

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Embodiment Construction

[0028] In order to better understand the above technical solutions, the technical solutions of the present application will be described in detail below through the accompanying drawings and specific examples. It should be understood that the embodiments of the present application and the specific features in the examples are detailed descriptions of the technical solutions of the present application, and It is not a limitation to the technical solutions of the present application, and the embodiments of the present application and the technical features in the embodiments can be combined without conflict.

[0029] The following is a further detailed description of a reliable multi-source orbital extrapolation autonomous selection method provided by the embodiment of the present application in conjunction with the accompanying drawings. The specific implementation methods may include (such as Figure 1~3 shown): maintain N+1 sets of orbit data in the orbit calculation task, N i...

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Abstract

A reliable multi-source orbit extrapolation autonomous selection method comprises the following steps of (1) maintaining N + 1 sets of orbit data in an orbit calculation task, wherein N is an N source in multi-source orbit extrapolation and 1 is selected orbit data; conducting multi-source orbit calculation in series, and finally conducting result fusion; (2) carrying out validity verification on a data source of multi-source track extrapolation, and carrying out variable data validity verification in order to realize seamless switching between primary source track data introduction and two track extrapolation; and (3) carrying out autonomous switching between GNSS orbit extrapolation and autonomous navigation. The autonomous selection method based on default selection, instruction enabling, instruction selection, seamless switching and autonomous switching is realized. Different orbit use requirements of ground station priority, initial source orbit data introduction, satellite long-term autonomous operation and the like are well supported, and the autonomous operation capability of the satellite is effectively improved.

Description

technical field [0001] The invention relates to a reliable independent selection method for multi-source orbit extrapolation, which belongs to the technical field of satellite attitude determination and control, and is a reliable independent selection method for multi-source orbit calculation tasks based on ground stations / GNSS / autonomous navigation method. Background technique [0002] Satellite orbit determination is one of the important guarantees for orbit control, precise attitude determination and other application tasks. Numerical method of orbit extrapolation has high calculation accuracy, but it relies on regular orbit measurement and orbit injection by ground stations, or on periodic GNSS measurement data provided by GNSS receivers. If there is no external orbit data correction for a long time, the orbit extrapolation calculation will diverge, and the error of the obtained orbit data will gradually increase. The autonomous navigation based on star sensitivity and...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F119/02
CPCG06F30/20G06F2119/02Y02D30/70
Inventor 吴培亚李光旭周中泽王裙余瑜刘潇翔石恒曹志威万丽景李乐尧李建平周艳丽
Owner BEIJING INST OF CONTROL ENG