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Method and apparatus for automatically adjusting Ka waveband mobile satellite communications antenna attitude

A mobile satellite communication and automatic adjustment technology, applied in the field of communication, can solve the problem that the dynamic satellite communication tracking method cannot adapt to the carrier of violent movement, etc., and achieve the effect of simple structure, lower precision requirements, and guaranteed reliability

Inactive Publication Date: 2009-07-29
NANJING PANDA ELECTRONICS +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to solve the problem that the existing dynamic satellite communication tracking methods cannot adapt to the violent movement of the carrier, and to invent a Ka-band mobile satellite communication antenna with high precision and continuous long-time work that is suitable for various loading conditions. Adjustment method and device

Method used

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  • Method and apparatus for automatically adjusting Ka waveband mobile satellite communications antenna attitude
  • Method and apparatus for automatically adjusting Ka waveband mobile satellite communications antenna attitude
  • Method and apparatus for automatically adjusting Ka waveband mobile satellite communications antenna attitude

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Embodiment 1

[0034] The invention discloses a method for automatically adjusting the attitude of a Ka-band mobile satellite communication antenna, so that the antenna is always aimed at the communication satellite, so as to realize the satellite communication during carrier movement. It uses the longitude and latitude equivalent obtained by GPS to control the polarization angle, initial azimuth and elevation angle of the antenna and:

[0035] a. Using the "inertia" of the antenna itself as the basic stable core, three orthogonal shafts are used to support the antenna body to suspend the antenna, so that the three rotational degrees of freedom of the carrier and the three rotational degrees of freedom of the antenna are separated, thereby Realize the most basic (core) suspension isolation;

[0036] b. Since the mechanical shaft is used for support, although the friction force of the bearing on the shaft is small when it rotates, it is not zero, so it must have an impact on the friction forc...

Embodiment 2

[0054] As shown in Figures 1, 2, 3, and 4.

[0055] An automatic attitude adjustment device for a Ka-band mobile satellite communication antenna, which includes a base 7, an azimuth axis 2, a roll axis 3, a pitch axis 4, an antenna and feed assembly 5, a measurement and control device 6, a roll beam 11, and a 7 The optical fiber sensor (i.e. FOG sensor) at the corresponding position on the upper part, as shown in Figures 1 and 2, the base 7 is installed on the carrier 1 (such as a mobile communication vehicle) through a damping spring, and the azimuth axis 2 is fixed on the base 7, supporting The column 10 is connected with the azimuth axis 2 through a pair of bearings, the upper end of the support column 10 is connected with the roll axis 3 on the roll beam 11 through a pair of lugs and their bearings, and the pitch axis 4 passes through the shaft holes on both sides of the roll beam 11 The upper bearing is connected to the beam, the Ka power amplifier 8, the measurement and ...

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Abstract

The invention discloses a method for automatically adjusting the posture of a Ka wave-band mobile satellite communication antenna and a device, wherein, three axes-an azimuth axis, a wobble shaft, and a pitch axis which drive the antenna to rotate are firstly arranged on a pedestal of the antenna in a space orthogonal mode to realize angular motion isolation of the three space orthogonal axes; then an antenna component is respectively configured with the azimuth axis, the wobble shaft, and the pitch axis as a center to lead an overall centroid of the antenna component installed on the pitch axis to fall on the pitch axis, the overall centroid of the antenna component installed on two sides of the axes of the wobble axis to fall on the wobble axis, and the overall centroid of the antenna component on the azimuth axis to fall on the azimuth axis; finally based on the antenna as a detecting standard of the antenna pointing deviation, pointing deviation caused by drifting of a sensor is eliminated by tracking a beckon signal of a satellite and alternately driving an intersection angle of the azimuth axis and / or the pitch axis, thus ensuring the antenna in an optimal receiving state. The method for automatically adjusting the posture of Ka wave-band mobile satellite communication antenna and the device have the advantages of high precision, simple structure, small volume, and low cost, can be widely applied to emergency communication, rescue and relief work, and also can be used for commercial purpose in vehicles, ships, trains, and the like.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for realizing communication with satellites by adaptively adjusting antenna attitude during carrier movement, specifically a method and device for automatically adjusting the attitude of Ka-band mobile satellite communication antennas. Background technique [0002] SATCOM earth stations require that the beam of the SATCOM antenna be pointed at the satellite at all times. There are two main beam directional technologies, one is to make the main beam of the antenna always point to the satellite through mechanical methods, this system is called a mechanical antenna system; the other is to use electronic scanning tracking, using phased array technology to achieve The scanning and tracking of the antenna beam, the mechanical structure of the antenna does not move or moves less, this system is called a phased array antenna system. The mechanical antenna syst...

Claims

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Application Information

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IPC IPC(8): H01Q3/08H01Q23/00
Inventor 董金春夏忠民
Owner NANJING PANDA ELECTRONICS
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