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A tracking arc calculation method for igso satellites to ground moving targets

A technology for ground moving targets and arc tracking, applied to satellite radio beacon positioning systems, instruments, measuring devices, etc., can solve problems such as inapplicability to satellite communication link analysis

Active Publication Date: 2021-02-05
CHINA ACADEMY OF SPACE TECHNOLOGY
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Problems solved by technology

[0004] The technical problem to be solved in the present invention is: to overcome the deficiencies in the prior art, to provide a kind of IGSO satellite tracking arc calculation method for ground moving targets, and to solve the problem that the analysis method of the GEO satellite tracking ability for the target in the traditional communication task cannot be applied Due to the shortcomings of IGSO satellite satellite communication link analysis, it can analyze the continuous tracking ability of IGSO satellites to ground moving targets under the condition of satisfying ground elevation angle constraints, satellite antenna angle constraints, and target narrow beam antenna constraints, which is in line with the subsequent use of IGSO satellites. The actual engineering application requirements of satellite-to-earth communication

Method used

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  • A tracking arc calculation method for igso satellites to ground moving targets

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Embodiment Construction

[0030] Aiming at the deficiencies in the prior art, the present invention provides a calculation method for tracking arcs of IGSO satellites to ground moving targets, which is suitable for IGSO satellites whose orbital positions change in real time, and considers ground elevation angle constraints, satellite antenna angle constraints, and target narrow beam antenna constraints, It can be applied to moving targets on the ground, and can be directly applied to moving targets on the sea surface by relaxing the elevation angle constraint. figure 1 Shown is the analytical flow chart of the method of the present invention.

[0031] The inventive method comprises the steps:

[0032] (1) Within the specified time period, determine the time interval and the corresponding moving target position information at each moment;

[0033] The position of the moving target can be a pre-designed value, or a real-time position predicted according to the positioning information in the actual proce...

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Abstract

A calculation method for IGSO satellites to track moving targets on the ground, which solves the defect that the analysis method of GEO satellites' ability to track targets in traditional communication tasks cannot be applied to the analysis of satellite communication links of IGSO satellites, and can meet the constraints of ground elevation angles. , satellite antenna angle constraints, and target narrow-beam antenna constraints, the analysis of the continuous tracking capability of IGSO satellites to ground moving targets meets the actual engineering requirements for subsequent use of IGSO satellites for satellite-to-ground communications.

Description

technical field [0001] The invention relates to a calculation method for tracking an arc section of a ground moving target by an IGSO satellite, and is mainly applied in the field of space-based communication. Background technique [0002] IGSO refers to the geosynchronous geosynchronous orbit. Because its orbital period is the same as the earth's rotation period and has a certain inclination angle, it is projected on the ground as a closed curve similar to a figure-eight. The coverage of IGSO satellites changes continuously. When the inclination angle is greater than a certain value, IGSO satellites can cover the polar regions, so they have more advantages than GEO satellites. At present, the application field of my country's in-orbit IGSO satellites is mainly navigation, and the follow-up can consider providing satellite communication services for ground moving targets. [0003] In the traditional satellite communication mission, since the GEO satellite itself is geostati...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/42
CPCG01S19/42
Inventor 任迪雪丹李帅
Owner CHINA ACADEMY OF SPACE TECHNOLOGY
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