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Movable type VSAT antenna tracking method

An antenna tracking and mobile technology, applied in the field of satellite communication, can solve the problems of complex system equipment and high cost, and achieve the effects of accurate data, low cost and fast calculation speed

Active Publication Date: 2017-02-22
西安坤蓝电子技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Single-pulse tracking can achieve high-precision tracking and fast tracking speed, but the system equipment is complex and costly

Method used

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  • Movable type VSAT antenna tracking method
  • Movable type VSAT antenna tracking method
  • Movable type VSAT antenna tracking method

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Embodiment Construction

[0025] Embodiments of the present invention are described in detail below, and the embodiments are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0026] The purpose of the present invention is to realize low-cost, fast and smooth tracking of satellites by mobile antennas. For this reason, a mobile VSAT antenna tracking method based on AEC pedestal is proposed.

[0027] When using this method, the initial state of the antenna should be when the pitch axis of the antenna is in a horizontal state, the pitch angle of the antenna electrical axis is equal to the theoretical pitch angle, and the antenna has captured the satellite. The basis for judging whether the antenna captures the satellite is whether the AGC level output by the beacon receiver reaches the peak level.

[0028] When the pitch axis of the antenna is in the horizontal state, the pitch angle of the antenna electrical axis is equal to the theor...

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PUM

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Abstract

The invention provides a movable type VSAT antenna tracking method. In the antenna beam range, by means of a sine wave scanning mode, the orientation adjusting direction and size are determined according to the size relation of positive and negative half-cycle AGC level mean values. When the antenna electrical boresight is aligned with the center of the lobe, the difference of the positive and negative half-cycle AGC level mean values is approximately zero to be taken as the basis for aligning with a satellite. No additional hardware circuit needs to be added on the basis of the original stepping tracking hardware, the cost is low, and the method is simple and easy to realize, and the random interference can be effectively eliminated by the error signal obtained by the difference of the positive and negative half-cycle AGC level mean values in the same frequency and phase of the scanning frequency. According to the invention, the tracking error size and direction can be directly solved, and the misoperation of a system is reduced.

Description

technical field [0001] The invention relates to a mobile VSAT (small satellite terminal station) antenna tracking method, in particular to a VSAT antenna azimuth tracking method without course data, which belongs to the field of satellite communication. Background technique [0002] At present, the commonly used tracking methods for satellite communication include step tracking, conical scanning tracking and monopulse tracking. Step tracking is low in cost and is often used for fixed earth station antennas. It is a tentative tracking mode. The direction of the first step is randomly determined. According to the change in the AGC level after the movement, determine the direction of the next movement and whether Track in place. This tracking mode is slow, one step angle is adjusted at a time, it is difficult to ensure the smoothness of the movement, and it is difficult to track the target when the carrier and the target are in relative motion, and it is more prone to misjudgm...

Claims

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Application Information

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IPC IPC(8): H01Q3/08H01Q1/12
CPCH01Q1/125H01Q3/08
Inventor 谢治许张英敏李寒苏有道谢宏甄学军张勇
Owner 西安坤蓝电子技术有限公司
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