漏泄电缆在井下移动通信中应用的研究

3,(,410083):,,,,,:;;:TD655:A:1005-2763(2006)06-0079-03StudyonApplicationofLeakageCableinMineMobileCommunicationZhangTao,ChenJianhong(SchoolofResourcesandSafetyEngineering,CentralSouthUniversity,Changsha,Hunan410083,China)Abstract:Thepropagationcharacteristicofelectromagneticwavealongundergroundlanewayisexpounded.Itispointedoutthatthebasicreasonforthedifficultyofminewirelesscommuni2cationisthevariousdeclineofelectromagneticwave.Accordingtothetheoryofleakagecablecommunication,byapplyingtheleakagecabletechniquetominemobilecommunication,amo2bilecommunicationsystemwithhighresistancetodecline-leak2agecablemobilecommunicationsystemforminecommunicationwasdesigned.Therefore,thehighqualitytransmissionofwire2lessdata,videoandvoiceinminewillbeachieved,thestronglyguaranteeforsafetyproductioninminewillbeprovided.KeyWords:Leakagecable,Mobilecommunication,Mine,,,,[1,6],,,,,,[6,7]1,[2],,,,,,10-3/m100kHz,170dB/km,1MHz550dB/km10-2/m,100kHz,1720dB/km,,,,,,,,,,,,,,,ISSN1005-2763CN43-1215/TD266MININGR&D,Vol.26,No.6200612Dec.20063:2006-01-17:(200449).:(1982-),,,,.[3],[3],,2,,,,,2.1,,,,,:,,,,(),,,,2.2,[4,5,8]2.2.1,,[5,8]:=1f+2f+3:1;2;3;f,MHz1,23(),2.2.2,r(1.5m)(dB)[5,8],:Lc=[Pt]-[Pr]:Pt;Prrr,,rR0R,:Lc=10lg(R/R0),,,,,()5055dB,2.2.3,12ab,,,ab,1082006,26(6),,,,(AGC)3,223.1,,8/16,32/,350m(FLA),(FLT),(FBU)(FHE),,,,(FPC),,,,,(2040dB/km);,,,,20150MHz(Data/Voice)148159MHz(),163174MHz(),(Video)10120MHz(,)3.2,,,,(1)3,(),;(),,,,(),,,,;,,,(2),20cm,1m,,(3),(4),,(5)(91)18,:5:km20.00280.02450.02730.06360.25140.00270.06630.0500.00940.28260.00700.06643.41280.42130.72700.30900.03560.70505.61070.19090.05280.03640.06310.34320.23160.27980.03620.004350.27480.82686:%10.989.120.0079.100.9014.352.6981.002.0660.827.5112.965.510.6312.5655.6215.3810.6118.3828.0133.844.380.5333.24,,,,:[1],.[J].,2001,(4):3134.[2],,.[J]..2005,30(4):334338.[3],.[J].,2004,20(6):1317.[4],,.[J].,2002,(2):5560.[5],.[J].:2001,56(S):817.[6].[J].,2002,(1):1420.[7],,,.[J].,2003,(4):101103.[8].[J].,2004.6(2):109114.(81),,,,,,,(6),,,,4,,,,,,,,,:[1],,,.CDMA[J].,2001,30(5).[2].-[D].:,1990.[3].[J].,1994,(3).[4],.[J].,2002,(6):4043.[5].[J].,2002,(4):35.[6],,,.[J].,2001,(9).[7]S.,R.,P.-M.,.[J].,,.,2001,(5).[8],.[J].,2003,(7).19,:GIS