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Ship borne communication-in-moving antenna tracking method

An antenna tracking and antenna technology, applied in the field of satellite communication, can solve the problems of inaccurate satellite angle, long time to search for satellites, poor stability, etc., and achieve the effect of satellite accuracy

Inactive Publication Date: 2018-05-18
NANJING UNIV OF POSTS & TELECOMM
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AI Technical Summary

Problems solved by technology

[0003] 1. When the mobile communication is turned on and initialized, the theoretical alignment angle calculated by the CPU is not accurate enough
[0004] 2. The traditional control algorithm is not advanced enough, the stability is poor, and it cannot maintain the alignment with the satellite for a long time
[0006] Aiming at the problem that the traditional star alignment angle is not accurate enough, the search satellite takes a long time, and the antenna on the sea cannot be aligned with the satellite for a long time to maintain communication

Method used

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  • Ship borne communication-in-moving antenna tracking method
  • Ship borne communication-in-moving antenna tracking method
  • Ship borne communication-in-moving antenna tracking method

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] The ship's mobile communication system adopts a stable tracking platform calculated by digital algorithms, which avoids the interference of additional mechanical price, maintenance, environment and other uncertain factors brought about by the mechanically stable structure. The three axes of pan, pitch and azimuth of the antenna are all equipped with motors, which can ensure the three-axis follow-up at any time, so as to achieve the purpose of real-time alignment with the target satellite. In the present invention, the work flow of the ship-borne mobile communication is as follows: figure 1 shown.

[0041] When the ship-borne mobile communication is turned on, the geographical location of the mobile communication is first obtained by GPS and ...

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Abstract

The invention discloses a ship borne communication-in-moving antenna tracking method, and relates to the technical field of satellite communication. Because the sea surface environment is complicatedand bumpy, the calculation model of the star coordinate of a conventional antenna is improved so that a communication-in-moving antenna can track a satellite in real time, and more precise star anglecalculation is provided. A conventional PID controller is improved, a PID-Fuzzy sectional combined controller is provided, the dynamic performance of the system is improved, and the requirements of real-time communication on a sea surface are satisfied.

Description

technical field [0001] The invention relates to the technical field of satellite communication, in particular to a method for tracking an antenna of a ship-borne communication in motion. Background technique [0002] The field of satellite communication has always occupied an important position in today's society. Now the fixed satellite communication technology is quite mature, but the mobile satellite communication has yet to be perfected. More than 70% of the earth is in the sea environment, so it is an urgent research topic to realize real-time communication in the sea environment. In some traditional mobile communication, it has the following disadvantages: [0003] 1. When the mobile communication is started and initialized, the theoretical alignment angle calculated by the CPU is not accurate enough. [0004] Second, the traditional control algorithm is not advanced enough, the stability is poor, and it cannot maintain the alignment with the satellite for a long tim...

Claims

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Application Information

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IPC IPC(8): G05D3/12
CPCG05D3/12
Inventor 万佑红陆磊赵来定贾振汪梓童
Owner NANJING UNIV OF POSTS & TELECOMM
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