A dual-reflector satellite antenna rotation gap tracking system and method

A technology of satellite antenna and double reflector, which is applied in the field of satellite communication, can solve the problem of low cost of near-satellite interference, achieve low cost, simple equipment, and reduce the effect of near-satellite interference

Active Publication Date: 2017-07-21
SINOTRUST MARINE ZS SATELLITE COMM CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the deficiencies existing in the existing satellite antenna automatic tracking system, the present invention provides a dual-reflector satellite antenna rotating missing area tracking system and method with high precision, low inter-star interference and low cost

Method used

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  • A dual-reflector satellite antenna rotation gap tracking system and method
  • A dual-reflector satellite antenna rotation gap tracking system and method
  • A dual-reflector satellite antenna rotation gap tracking system and method

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Embodiment 1

[0033] In embodiment one, if figure 1 , figure 2 As shown, an automatic tracking system for a ring-focus antenna includes a main reflector 1, a sub-reflector 2, and a feed source 3. The main reflector 1 is equipped with a servo tracking unit and a main control unit. The main reflector 1 and the sub-reflector 2 and the feed source 3 are coaxially arranged, the sub-reflector 2 can rotate around the axis and is equipped with a rotating mechanism 4, and the sub-reflector 2 has a local signal failure area 5 eccentrically set at the point where the field strength density is the largest.

[0034] In Embodiment 1, the local signal failure area 5 can be realized by means of local default, signal absorbing coating, and the like.

[0035] In embodiment one, if figure 1 As shown, when the axis of the main reflector 1 is aligned with the satellite, the main reflector 1 converges microwave signals to the sub-reflector 2, and the field intensity distribution on the sub-reflector 2 is unev...

Embodiment 2

[0039] In the second embodiment, if Figure 10 , Figure 11 As shown, the main reflective surface 1 rotates, and the local signal failure area 5 is set at the edge position of the main reflective surface 1. Signals with periodic fluctuations in strength are used as a basis for automatic tracking of satellite dishes.

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Abstract

Disclosed are a rotation missing plot tracking system and method for a double-reflection-surface satellite antenna, which are used for solving the deficiency of an existing satellite antenna automatic tracking system, characterized by comprising a main reflection surface, a secondary reflection surface and a feed source, wherein the main reflection surface is provided with a servo tracking unit and a main control unit; the main reflection surface, the secondary reflection surface and the feed source are coaxially arranged; one of the main reflection surface and the secondary reflection surface can rotate around an axial centre and is provided with a rotation mechanism; and the rotating main reflection surface or secondary reflection surface is eccentrically provided with a signal local-failure zone. Compared with stepped tracking, the present invention has a high precision and is quick in response; compared with conical scanning tracking, a main reflection surface and a secondary reflection surface are coaxially arranged, thereby decreasing a side lobe, reducing the interference of an adjacent satellite and improving the applicability; and compared with single-pulse tracking, by using a rotating and eccentrical signal local-failure zone, a quasi-sinusoidal signal of a model intensity period change can be acquired, which has a simple device and a low cost.

Description

technical field [0001] The invention relates to the field of satellite communication, in particular to a system and method for tracking a rotating missing area of ​​a satellite antenna with double reflectors. 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. Therefore, the antenna automatic tracking technology is one of the core technologies of the satellite antenna, and it is the premise to realize the stable communication between the mob...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q3/20H01Q19/19
CPCH01Q3/20H01Q19/19
Inventor 亓常松潘洪军卓卫国虞海华
Owner SINOTRUST MARINE ZS SATELLITE COMM CO LTD
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