Automatic power control apparatus and control method for up link of satellite earth station

A technology of automatic power control and earth station, applied in the direction of transmission control/equalization, radio transmission system, electrical components, etc., can solve the problems of normal communication interruption, voice distortion and sequence, affecting the quality of communication signal transmission, etc., to improve the signal quality quality, resistance to rain attenuation, and automatic uplink power control

Inactive Publication Date: 2009-04-08
NANJING CHINA SPACENET SATELLITE TELECOM
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Problems solved by technology

[0002] There are many factors that are subject to interference in satellite communications, including climate, rainfall, clouds, air temperature, etc., which will cause interference to the satellite communication link; the most influential factor is rainfall, and the satellite signal attenuation caused by rainfall is called rain attenuation; and Interference from environmental factors will affect the transmission quality of communication signals, wh

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  • Automatic power control apparatus and control method for up link of satellite earth station

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Embodiment Construction

[0020] The practical application of the present invention will be further described in detail below in conjunction with the technical scheme and accompanying drawings.

[0021] As shown in Figure 1: a satellite earth station uplink automatic power control device, including antenna 1, down-conversion low-noise unit 2, satellite beacon receiver 3, signal attenuation controller 4, satellite signal transmitter 5, uplink The power amplifying frequency conversion unit 6 is characterized in that the antenna 1 is connected to the down-conversion low-noise unit 2 and the up-link power amplifying frequency conversion unit 6 is connected through a feed source, and the down-conversion low-noise unit 2 is connected to the satellite beacon receiver 3 through a coaxial cable, and the satellite signal The target receiver 3 is connected to the signal attenuation controller 4 through a control cable, and the signal attenuation controller 4 is connected to the satellite transmitter 5 and the upli...

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Abstract

The invention discloses an automatic power control device for an uplink of a satellite earth station and a control method thereof, belonging to the technical field of wireless network communication. The antenna of the invention is connected with an uplink power amplifying frequency conversion unit and a downlink frequency conversion low-noise unit by a feed source; the downlink frequency conversion low-noise unit is connected with a satellite beaconing receiver by a coaxial cable; the satellite beaconing receiver is connected with a signal attenuation controller by a control cable; the signal attenuation controller is connected with a satellite transmitter and the uplink power amplifying frequency conversion unit by the coaxial cables. The invention solves the interference of environment factors on a satellite signal link and achieves the goals of automatically controlling the power and resisting interference by increasing and decreasing the amplified intensity of the signals of a power amplifying control unit.

Description

technical field [0001] The invention relates to a satellite earth station uplink automatic power control device and method, in particular to a control method for controlling transmission power based on the intensity of received satellite beacon signals, and the invention belongs to the technical field of wireless network communication. Background technique [0002] There are many factors that are subject to interference in satellite communications, including climate, rainfall, clouds, air temperature, etc., which will cause interference to the satellite communication link; the most influential factor is rainfall, and the satellite signal attenuation caused by rainfall is called rain attenuation; and Interference from environmental factors will affect the transmission quality of communication signals, which are specifically reflected in the application layer as packet loss in data transmission, discontinuous video transmission, and distorted voice sequence, which may even lead...

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Application Information

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IPC IPC(8): H04B7/005H04B7/185
CPCH04B7/18517
Inventor 石坚李玮顾捷骆贵新
Owner NANJING CHINA SPACENET SATELLITE TELECOM
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