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《Engineering Science》 2001-07
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The Technical Scheme and Key Equipment for Solving the Difficult Technical Problems of Underground Radio Communications

Situ Mengtian (The Institute of China Electronic System Engineering Company, Beijing 100039, China)[  
Two difficult technical problems in underground radio communications, i.e. weak signal reception and counter lightning pulses interference are described, and ways to solve these problems are proposed .The design scheme of the telegraph terminal used for weak signal reception and counter lightning pulses interference is exhaustively studied. The performances of this terminal are analyzed, and results of laboratory measure and field tests are also given. [
【CateGory Index】: TN929.4
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