Method and device for eliminating radiation type leaky cable same frequency interference phenomenon

Abstract

The invention relates to the technical field of communication, in particular to a method and device for eliminating a radiation type leaky cable same frequency interference phenomenon. The device comprises two leaky cables, two matched loads and an anti-interference box or an anti-interference band. Each matched load is installed at one end of the corresponding leaky cable, the other end of each leaky cable is connected with a signal generator, signal sources of the two signal generators are input into the leaky cables with the same frequency and power, and the anti-interference box or the anti-interference band is installed outside the joint of the two matched loads and used for eliminating the same frequency interference phenomenon. According to the method and device for eliminating the radiation type leaky cable same frequency interference phenomenon, non-magnetic conductive metal materials are adopted, and reasonable design is conducted, so that a composite type anti-interference structure is formed, same frequency interference of the leaky cables is eliminated, and a reliable guarantee is provided for train communication quality and continuous operation.

Description

technical field [0001] The invention relates to a technology in the field of communication, in particular to a method and a device capable of eliminating the phenomenon of same-frequency interference of radiation-type leaky cables. Background technique [0002] As an important means of communication in closed space, radiating leaky cable is a special antenna adopted to improve the propagation characteristics of electromagnetic waves. In the safe operation of underground rail transit trains, how to ensure the safe and stable transmission of rail transit communication signals has always been an important task that the industry has long concerned. Fading, especially when the train enters or leaves the section, this unfavorable situation is more serious. In order to effectively improve the quality of information transmission, a device that can eliminate the phenomenon of co-frequency interference and possible accidents has been developed. become an unavoidable and important iss...

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Problems solved by technology

In the safe operation of underground rail transit trains, how to ensure the safe and stable transmission of rail transit communication signals has always been an important task that the industry has paid close attention to for a long time. In the previous applications of similar products in the industry, there were some co-frequency interference sections, and the communication signal strength was greatly increased. Fading, especially when the train enters or leaves the section, this unfavorable situation is more serious. In order to effectively improve the quality of information transmission, a device that can eliminate the phenomenon of co-frequency interference and possible accidents has been developed. become an unavoidable and important issue

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