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Satellite tracking method

A satellite tracking and satellite technology, applied in the field of electromagnetic beam tracking, can solve the problems of large error, time delay, low precision, etc., and achieve the effect of reducing dependence on precision, improving precision, and reducing delay and error.

Active Publication Date: 2018-03-09
CCT SPACE INFO IND & TECH LTD +1
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Problems solved by technology

[0004] Based on this, it is necessary to provide a satellite tracking method for problems such as low precision, large error, and time delay

Method used

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Embodiment Construction

[0055] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0056] figure 1 It is a flow chart of the satellite tracking method of an embodiment. The satellite tracking method is used to realize fast tracking and alignment of satellites, and includes the following steps S100-S500.

[0057] Step S100, acquiring a directivity coefficient function of the antenna.

[0058]The directivity coefficient of the antenna is used to indicate the concentrated radiation degree of the antenna, and the specific definition is: in the case of the same total radiation power, the ratio of the radiation power density of the antenna in the maximum radiation direction to the ra...

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Abstract

The invention provides a satellite tracking method, which relates to the field of electromagnetic wave beam tracking, and is used for realizing the rapid tracking and pointing of satellites. The method comprises the steps that the directivity factor function of the antenna is obtained; the Jacobi matrix of the directivity factor function which is used for determining the angle compensation direction of the antenna is obtained; the angle of deviation matrix of the antenna, relative to the satellite can be obtained through scanning, and the angle of deviation matrix is used for providing a function model to obtain the compensation angle; the compensation angle is obtained based on the directivity factor function, the angle of deviation matrix, and the Jacobi matrix, and the compensation angle is used for guiding the antenna to move at the next time; the compensation angle can be dynamically obtained during the aligning process, the antenna is continuously adjusted based on the compensation angle to scan, track and align the satellite. The invention is advantageous in that the satellite tracking errors can be rapidly converged through collecting wave beam signals having quite a few orquite low frequency, and the satellite aligning with high precision can be realized.

Description

technical field [0001] The invention relates to the field of electromagnetic beam tracking, in particular to a satellite tracking method. Background technique [0002] Accurate capture and tracking of satellite signals has always been a core indicator of satellite antennas. Most of the current automatic satellite tracking methods involve hardware analysis of the power level value rssi of satellite signals for beam signal indication. The current satellite tracking algorithm is a simple processing of the signal value of the satellite beam, by stepping and scanning near the incoming beam, searching for the maximum point of the signal, as the basis for star alignment, the signal processing method is very simple. There is a large time delay, the error is also large, and the accuracy needs to be improved. [0003] Moreover, part of the scanning method is only based on finding the position of the maximum received signal. This processing mechanism has no problem for unilateral rece...

Claims

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Application Information

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IPC IPC(8): G01S19/24
CPCG01S19/24
Inventor 杨飞袁世钊刘冰吴晓文
Owner CCT SPACE INFO IND & TECH LTD
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