Wave-like satellite-searching method for onboard satellite antenna

A satellite antenna and wave technology, applied in the field of satellite communications, can solve the problem of long time consumption of satellite antennas, and achieve the effect of ensuring safe and reliable navigation, reducing the time of searching for satellites, and reducing the time of signal interruption.

Active Publication Date: 2019-08-30
SINOTRUST MARINE ZS SATELLITE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the shortcomings of the existing satellite antenna star-seeking method that takes a long time, the present invention provides a wave-type star-seeking method for a ship-borne satellite antenna

Method used

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  • Wave-like satellite-searching method for onboard satellite antenna
  • Wave-like satellite-searching method for onboard satellite antenna
  • Wave-like satellite-searching method for onboard satellite antenna

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with embodiment and accompanying drawing.

[0034] In the example, such as Figure 4 Shown: a wave-type star-seeking method for a shipborne satellite antenna, including star-seeking initialization, circular rough sweep and sine fine sweep, the star-seeking initialization is used to determine the pitch command angle and polarization command angle of the antenna star-seeking and the azimuth command angle, during the rough scan of the circle, the attitude of the antenna is adjusted to the pitch command angle and the polarization command angle, the azimuth angle of the antenna rotates along the circle, and the pitch angle of the antenna is on both sides of the pitch command angle swing. In this embodiment, when the azimuth angle is rotated to find the star, the pitch angle also maintains a certain range of swing, and the scanning curve changes from a circle to a smooth curve bent along a circular trajecto...

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Abstract

The invention discloses a wave-like satellite-searching method for an onboard satellite antenna. The method comprises satellite-searching initialization, circumferential rough scanning and sinusoidalfine scanning. In the circumferential rough scanning, the attitude of the antenna is adjusted to a pitch instruction angle and a polarization instruction angle. The azimuth of the antenna rotates circumferentially and the pitch angle of the antenna swings on both sides of the pitch instruction angle. In the azimuth rotation satellite-searching process, the pitch angle also swings within a certainrange, and a scanned curve changes from a circle to a smooth curve which is bent along the circular path, which directly increases a scanning stroke. It can be actually considered as the case that theline scanning becomes surface scanning, and errors caused by calculation, mechanical or control systems are eliminated, thereby improving the satellite-searching efficiency and shortening the satellite-searching time. Especially when shielding causes signal interruption, the method can quickly search for the satellite again after the shielding condition is eliminated, thereby minimizing signal interruption time and ensuring safe and reliable navigation.

Description

technical field [0001] The invention relates to the field of satellite communication, in particular to a wave-type star-seeking method for a ship-borne satellite antenna. Background technique [0002] "Mobile Communication" is the abbreviation of "Moving Satellite Ground Station Communication System", which is used to realize the communication between mobile carriers and satellites. Satellite signals are weak and highly directional. In order to ensure that mobile carriers (such as ships, trains, etc.) receive stable signals to meet communication requirements, it is necessary to detect the deviation between the antenna and the satellite in real time and adjust the antenna attitude in time, Ensure that the antenna is aligned with the satellite in real time, so the satellite antenna automatic tracking technology is one of the core technologies of the satellite antenna. In addition, when the antenna is blocked and interfered by the external environment in the tracked state, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q3/02H01Q1/34
CPCH01Q1/34H01Q3/02
Inventor 胡莉烨虞海华唐武何文敏
Owner SINOTRUST MARINE ZS SATELLITE COMM CO LTD
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