有线电视网络常用英语词汇

1、有线电视网络常用英语词汇aal(atm adaptation layer)异步转移模式适配层ac(alternating current)交流access network 接入网aci(adjacent channel interference)邻频干扰additional channel:增补频道adjacent channel transmission 邻频道传输adsl(asymmetrical digital subscriber line)不对称数字用户线路agc(aotomatic gain control)白动增益控制aic(auxilliary information chan

2、nel)辅助信息信道alc(aotomatic level control)自动电平控制am(amplitude modulation)幅度调制(调幅)aml(amplitude modulated microwave link)调幅微波链路amplifier放大器application layer 应丿ij层arp(addrcss resolution protocol)地址识别协议asc(aotoniatic slope control)自动斜率控制atm (asynchronous transfer mode)异步传输模式(协议)bal(bit aliocation)比特分配bandwi

3、dth 带宽bb(basis band)基带bber(background block error rate)背景块谋码率bc(broadcast channel)广播信道bcn(broadcast communication network) 播通信网bdc(block down converter)卜变频器ber(bit error rate)误帀马率b isdn(broadbandintegrated services digital network)宽带综合业务数字网络bit stream比特流(码流)bpf(band pass filler)带通滤波器bps(bits per sec

4、ond)比特 / 秒，也写作 b/sbri(basic rate interface)基本速率接口broard band communication 宽带通信brr (bit rate reduction)比特率压缩c/cso(can ier to composite second order beat ratio)载波复合二次差拍比c/ctb(carrier to composite triple beat ratio)载波复合三次差拍比c/i(carricr to intermodulation ratio)载波互调比c/n(carrier to noise ratio)载噪比ca(con

5、ditional access)有条件存取(有条件接收)cable router线缆路由器cac(conditional access control)条件接收控制caid(conditional access idcntificr)有条件存取(接收)标志catv(cable television)有线电视catv (community antenna television)共用天线电视ccir(intcrnational radio consultative committee)国际无线电咨询委员会ccitt(consultative committee of international t

6、elephone and telegraph)国际电报电话咨询委员会ccu(communication control unit)通信监测单元cdma(code division multiple access)码分多址channel 频道channel 信道chi叩附加调频cif(commom interleaved frame)公共交织帧ch(china information infrastrcture)中国信息基础设施(计划)circuit switching 电路交换cli(catv leakage and ingress)冇线电视泄漏与窜入cm(cablc modem)电缆调制解调

7、器又名线缆调制解调器cm(cross modulation)交扰调制cmckcable modem to cpe interface)电缆调制解调器至用户屋内设备接口cmtrl(cable modem telephone return interface)电缆调制解调器中回传电话接 ucmts(cable modem termination system)电缆调制解调器(cable modem)端接系统coaxial cable同轴电缆cofdm(coded orthogonal frequency division multiplexing)编码正交频分复用communication 通信c

8、ommunity reception 集体接收cpe(customer premises equipment)用户屋内设备cs(communication satellite)通信卫星csma/cd(carrier sense multiple access/collision detection)公共载波复用通路/冲突检测(用于以太网), 也叫带碰撞检测的载波侦听多址、载波侦听多重接入/碰撞检测cso(composite second order beal)复合二次差扌口ctb(composite triple beat)复合三次差拍cw(control word)控制字data数据davi

9、c(digital audio video council)数字音视频理爭会db(data broadcasting)数据广播db(decibel)分贝dbs(dircct broadcast satellite)直播卫星dc(direct current)直流dcf(dispersion compensation fiber)色散补偿光纤，也叫色散位移光纤dc-smf(dispersion compensation single mode fiber)色散补偿单模光纤dct(discrete cosine transfoi m)离散余弦变换dfb(distributcd fccdback)分

10、布反馈(激光器)dfb-ld(distributed feedback-ld)分布反馈型一激光二极管dft(eiscrete fourier transformation)离散傅里叶变换dhcp(dynamic host configuration protocol)动态主机配置协议dib(digital integrated broadcasting)数字综合广播digital数字的distribution point 分配点dll(data link layer)数据链路层dls(dynaniic label segment)动态标记段dmb(digital multimedia broa

11、dcasting)数字多媒体广播docsis(data over cable service interface specification)有线电视网络上的数据接 口规格downstream 卜行dqdb(dislributed queue double bus)分布队列双总线drc(dynamic range control)动态范围控制dscty(data service component type)数据业务成分类型dsf(dispersion shift fiber)色散位移光纤dsl(digital subscriber line)数字用户线路dsm(digilal storage

12、 media)数字的存储或传输器件dsp(digital signal processor)数字信号处理器dtv(digital tv)数字电视dvb(digital video broadcasting)数字视频广播dvb-c(digital video broadcasting-cable)用于电缆的数字视频广播dwdm(denseness wavelength division multiplexing)密集波分复用dxc(digital cross connection)数字交叉连接(设备)ebu(european broadcasting union)欧洲丿播联盟echo ratin

13、g 回波值ecm(entitlement checking message)授权校验信息edfa(erbium-doped fiber amplifier)掺饵光纤放大器edtv(enhanced definition television)增强清晰度电视eia(elcctronic industries association)电子工业协会elrp(equivalent isotropic radiated power)等效全向辐射功率eld(ensemble identifier)信号群(组)标志emm(enlillemenl management message)授权管理信息epg (e

14、lectronic program guides)电子节目指南equalization 均衡erp(equivalent radiated power)等效辐射功率esr(enor block second ratio)误块秒率ethernet 以太(网)eti(ensemble transport interface)信号群(组)传输接口eti(na) ensemble transport intcrfacc(nctwork-ad叩ted)网络适应的信号群(组)传输接口 etn(ensemble-transport-network)信号群(组)传输网络ets(european telecom

15、munications standard)欧洲通信标准etsi(european telecommunications standards institute)欧洲通信标准学会fcc(federal communications commission)联邦通信委员会fddi(fibcr distributing data interface)光纤分布式数据接口fdm(frequency division multiplexing)频分复用fdma(frequency division multiple access)频分多址fec(forword error coitection)前向纠错fe

16、ed馈送feedback error correction 反馈纠错ff(feed forwoid)前馈(放人器)fet(fast fourier transformation)快速傅里叶变换fi(frequency information)频率信息fib(fast information block)快速信息块fic(fast information channel)快速信息信道fidc(fast information data channel)快速信息数据通道fidcld(fast information data channel identifier)快速信息数据通道标志fig(fast information group)快速信息组f