Dual-mode amplification multi-path distribution system with anti-interference function and distribution method

Abstract

The invention discloses a dual-mode amplification multi-path distribution system with an anti-interference function and a distribution method. According to the invention, the system is provided with three GPS/Beidou antenna units; a detection and control unit is used for detecting the signal intensity of a first radio frequency active unit, a second radio frequency active unit and a third radio frequency active unit, and controlling the switching between a radio frequency switch and a multi-channel GPS/Beidou signal switching unit; the third GPS/Beidou antenna unit is connected with an anti-interference module, GPS/Beidou signals can be continuously output when other antenna units are interfered and cannot work, the antenna has three-channel input and multi-channel output, the number of antenna feeder systems is effectively reduced, and the construction difficulty and cost are reduced.

Description

technical field [0001] The invention relates to the field of mobile communication, and specifically relates to a dual-mode amplification and multi-channel distribution system and a distribution method with anti-interference function. Background technique [0002] Mobile communication is an indispensable and important part of today's social life, and it is also a public technology field that has developed rapidly in recent years. GPS / Beidou has become an international standard as a part of communication technology applications. At present, GPS / BeiDou has been widely used in navigation GPS / Beidou signals carry fixed synchronization signals in several aspects such as measurement, communication and timing. In the field of mobile communications, GPS / Beidou timing mainly provides reference synchronization signals for data transmission. [0003] With the large-scale construction and popularization of 5G networks in recent years, my country's mobile communication industry has ushere...

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Problems solved by technology

[0004] However, the current GPS / Beidou dual-mode intelligent amplification and multi-channel distribution system has great defects, because the GPS / Beidou satellite signal is quite weak (about -160dBW) when it reaches the ground user receiver, which is about 30dB lower than the thermal noise of the receiver ;Because the GPS / Beidou antenna of the GPS / Beidou dual-mode intelligent amplification distribution system does not have anti-interference function, the equipment often cannot be used normally in complex electromagnetic environments or under human interference, resulting in the loss of synchronization, timing and navigation capabilities of the base station, seriously Affecting the national economy and people's livelihood, so solving the anti-jamming problem of the GPS / Beidou dual-mode intelligent amplification and multi-channel distribution system has become a top priority

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