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Mid-term orbit prediction method and device of low-orbit spacecraft and storage medium

A technology for orbit forecasting and spacecraft, which is applied in the field of aerospace, can solve the problems of low precision of low-orbit spacecraft and achieve the effect of improving accuracy

Active Publication Date: 2018-11-16
中国人民解放军63920部队
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a medium-term orbit prediction method, device, and storage medium for low-orbit spacecraft, so as to at least solve the problem of low precision in medium-term orbit prediction for low-orbit spacecraft

Method used

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  • Mid-term orbit prediction method and device of low-orbit spacecraft and storage medium

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Embodiment 1

[0030] The embodiment of the present invention provides a medium-term orbit prediction method of a low-orbit spacecraft.

[0031] figure 1 It is a flow chart of a medium-term orbit prediction method for a low-orbit spacecraft according to an embodiment of the present invention. Such as figure 1 As shown, the method includes the following steps:

[0032] Step S102, determining target parameters, wherein the target parameters at least include atmospheric density parameters at the location of the target spacecraft, equivalent windward area of ​​the target spacecraft, and atmospheric drag coefficient.

[0033] In the technical solution provided by the above-mentioned step S102 of the present invention, the target parameters are determined, wherein the target parameters at least include the atmospheric density parameter at the location of the target spacecraft, the equivalent windward area of ​​the target spacecraft and the atmospheric drag coefficient.

[0034] The medium-term ...

Embodiment 2

[0083] The technical solutions of the present invention will be illustrated below in conjunction with preferred embodiments.

[0084] figure 2 It is a flowchart of a high-precision medium-term orbit prediction method for a low-orbit spacecraft according to an embodiment of the present invention. Such as figure 2 As shown, the method includes the following steps:

[0085] Step S201, determining the precise orbital elements of the spacecraft at the initial moment.

[0086] When determining the precise orbit of the spacecraft, the precise orbit elements at the initial time are obtained.

[0087] Step S202, determine the space environment parameters during the forecast period, and calculate the atmospheric density parameters.

[0088] On the basis of obtaining the precise orbit elements at the initial time, based on the forecasted multi-sky space environment parameter file (available from the Space Science Center or the Internet), calculate the atmospheric density parameters...

Embodiment 3

[0144] The embodiment of the present invention also provides a medium-term orbit prediction device for a low-orbit spacecraft. It should be noted that the low-orbit spacecraft medium-term orbit prediction device of this embodiment can be used to implement the spacecraft orbit prediction method of the embodiment of the present invention.

[0145] Figure 6 is a schematic diagram of a medium-term orbit prediction device for a low-orbit spacecraft according to an embodiment of the present invention. Such as Figure 6 As shown, the device may include: a determining unit 10 and a forecasting unit 20 .

[0146] The determining unit 10 is configured to determine target parameters, wherein the target parameters at least include atmospheric density parameters at the location of the target spacecraft, an equivalent windward area of ​​the target spacecraft, and an atmospheric drag coefficient.

[0147] The prediction unit 20 is used to predict the medium-term orbit of the target space...

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Abstract

The invention discloses a mid-term orbit prediction method and device of a low-orbit spacecraft and a storage medium. The method includes the steps that target parameters are determined, wherein the target parameters at least comprise the atmospheric density parameter of the position where the target spacecraft is located, and the equivalent windward area and the atmospheric drag coefficient of the target spacecraft; and the mid-term orbit of the target spacecraft is predicted through the target parameters. The effect that the mid-term orbit prediction accuracy of the low-orbit spacecraft is improved is achieved through the method and device.

Description

technical field [0001] The present invention relates to the field of aerospace, in particular to a medium-term orbit prediction method, device, and storage medium for low-orbit spacecraft. Background technique [0002] At present, the accuracy of orbit prediction of low-orbit spacecraft, for example, the accuracy of medium-term orbit prediction of low-orbit spacecraft orbits, is of great significance for spacecraft flight control tasks, strategy formulation and index design for rendezvous and docking tasks. The accuracy of medium-term orbit prediction will directly affect whether the space station mission can be successfully implemented, and it is a key aspect that must be paid attention to during the implementation of the space station mission. Therefore, how to make full use of the existing orbit measurement data and space environment forecast to improve the accuracy of spacecraft orbit determination and monitor the state of the space environment in real time is an importa...

Claims

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Application Information

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IPC IPC(8): B64G1/64B64G1/00
CPCB64G1/00B64G1/64
Inventor 陈明张宇韩意孔静谢剑锋段成林周立欧阳琦
Owner 中国人民解放军63920部队
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