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Composite tracking method for airborne satellite communication antenna

A composite tracking and satellite communication technology, applied to antennas, antenna parts, antennas suitable for movable objects, etc., can solve problems such as difficult to achieve tracking accuracy for a long time, reduce equipment costs, avoid network complexity, The effect of improving tracking accuracy

Inactive Publication Date: 2017-06-30
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to calibration errors, inertial navigation drift and other reasons, it is difficult to meet the requirements of tracking accuracy for a long time. A composite tracking algorithm is needed to improve the tracking accuracy of the antenna.

Method used

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  • Composite tracking method for airborne satellite communication antenna
  • Composite tracking method for airborne satellite communication antenna
  • Composite tracking method for airborne satellite communication antenna

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] The function to be completed by the invention is to realize the real-time tracking of the satellite by the antenna under the flying state of the aircraft.

[0023] The compound tracking method of a kind of airborne satellite communication antenna of the present invention, such as figure 1 Said includes the following steps:

[0024] (1) The servo tracking system calculates the current theoretical angle of the target according to the GPS and inertial navigation data provided by the outside, and sends the current theoretical angle to the antenna;

[0025] (2) The antenna points to the current theoretical angle, and sends the received signal to the servo tracking system; the general antenna pointing is between 10dB beamwidth and 3dB beamwidth, and the servo tracking system can lock the signal within this range;

[0026] (3) The servo track...

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Abstract

The invention discloses a compound tracking method for an airborne satellite communication antenna. It calculates the theoretical angle of aiming at the target according to the GPS and inertial navigation data provided by the outside, and then adopts the compound tracking method of guiding and superimposing steps to obtain the angle deviation that needs to be corrected, and the superposition needs to be corrected on the basis of the calculated theoretical angle The angular deviation of the antenna can realize the real-time tracking of the satellite. It avoids the problem that the single digital guidance tracking will cause the antenna to fail to follow the maximum point of the signal due to inertial navigation drift, calibration errors, etc., thereby improving the tracking accuracy of the servo and ensuring the stability of the communication link.

Description

technical field [0001] The invention relates to the field of tracking of airborne satellite communication antennas, and is particularly suitable for tracking of small-diameter airborne satellite communication antennas. Background technique [0002] For small-caliber airborne satellite communication antennas, conical scanning or monopulse tracking is generally used at present. Although this is an easy-to-implement tracking method, the equipment system structure is relatively complicated and the cost is high. According to the attitude information of the aircraft provided by the outside, the tracking of the satellite can be realized by adopting the guidance tracking method, and the system structure is simple, which avoids the problems of network complexity and phase change. However, due to calibration errors, inertial navigation drift and other reasons, it is difficult to meet the requirements of tracking accuracy for a long time with single guidance tracking. A compound tracki...

Claims

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Application Information

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IPC IPC(8): H01Q3/08H01Q3/00H01Q1/28
CPCH01Q3/08H01Q1/285H01Q3/005
Inventor 赵海波陈佳林蔡文丽赵雷鸣张迎春侯永飞刘昊丁宸聪夏辉李欣
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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