卫星电视技术常用缩语
<P>AAS(Automatic Addressing System)自动寻址系统</P><P>ABR(Available Bit Rate)可用比特率</P><P>ACU(Antenna Control Unit)天线控制器</P><P>ACI(Adjacent-Channel Interference)邻频干扰</P><P>A/D(Anolog to Digital Conversion)模拟数字转换</P><P>AFC(Automatic Frequency Control)自动频率控制</P><P>AFC(Audio Frequency Control)声频编码器</P><P>AFT(Automatic Frequency Tune)自动频率调谐</P><P>AGC(Automatic Gain Control)自动增益控制</P><P>AM(Amplotude Modulation)调幅</P><P>ANT(Antenna)天线</P><P>ASIC(Application Specific Integrated Circuit)专用集成电路</P><P>ASW(Acoustic Surface Wave)声表面波</P><P>AU(Adapter Unit)适配器，附加器</P><P>AUL(Average Useful Life)平均使用寿命</P><P>B(Baud) 波特(Byte)字节</P><P>B(bit)比特</P><P>BB(Baseband)基带</P><P>BER(Bit Error Rate)误码率，比特差错率</P><P>BF或 BPF(Band-pass Filter)带通滤波器</P><P>BPS(bps)(Bits Per Second)比特/秒</P><P>BPSK(Biphase Shift Keying)二相相移键控</P><P>BS(Broadcast Satellite)广播卫星</P><P>BSS(Broadcast Satellite Service )广播卫星业务</P><P>C/Ku-Band Compatible C/K波段兼容</P><P>CAS(Conditional Access System)条件接收系统</P><P>C Band (4 GHz to 6 GHz)C波段（4GHz到6GHz）</P><P>CCIR(International Radio Consultative Committee)原国际无线电咨询委员会</P><P>CCITT(Consultative Committee, International Telegraph and Telephone)国际电报电话咨询委员会</P><P>CDV(Compressed Digital Video)压缩数字视频</P><P>CH (Channel)信道、通道、频道</P><P>CHI(Channel Interface)通道接口</P><P>CHIO(Cannel Input/Output)通道输入/输出</P><P>CM(Communication Mutiplexer)通信复用器(Cross Modulation)交叉调节器制</P><P>C/N(Carrier/Noise)载（波）噪（声）比</P><P>CN(Communication Network)通信网络</P><P>CNR(C/N )(Carrier to Noise Ration)载噪比</P><P>CODEC(codec)(Coder-Decode)编解码器</P><P>COFDM(Coded Orthogonal Frequency Devision Multiplexing)编码正交频分复用</P><P>COMSAT(Communications Satellite Corporation)美国通信卫星公司</P><P>CP(Circular Polarization)圆极化</P><P>CP(Circular Polarigation)圆极化</P><P>CPU(Central Processing Unit)中央处理单元</P><P>CPW(Circular Polargation Wave)圆极化波</P><P>CS(Communication Satellite)通信卫星</P><P>D/A（Digital/Analog Conversion）数字模拟转换</P><P>DAC(Digital/Analog Conversion)数字模拟转换</P><P>dB(deciBel)分贝，表示对数比例值</P><P>dBi(dB antenna gain relative to anisotroppoc source)天线的增益（相对于各向同性辐射源）</P><P>DBS(dB power relative to one watt)直播卫星</P><P>dBW(dB power relative to one mili watt)相对于1W的功率的dB值</P><P>dBm(dB power relative to one mili watt) 相对于1mw 的功率dB值</P><P>DC(Direct Current)直流</P><P>D/C(Down Convertor)下变频器</P><P>DE(De-emphasis)去加重</P><P>Demod(Demodulation )解调</P><P>Domsat(Domestic Communi-Salellile)国内通信卫星</P><P>DG(Differential Gain)微分增益</P><P>DPX(Diplexer)双工器</P><P>DSNG(Digital Satellite News Gather)数字卫星新闻采集</P><P>DSP(Digital Satellite Processor)数字信号处理</P><P>DSR(Digital Satellite Radio)数字卫星广播</P><P>DSS(Digital Satellite System)数字系统</P><P>DTH(Direct to home)直播到户</P><P>DHI(Data Transmission Interface)数据传输接口</P><P>DTSC(Digital Television Standard Converter)数字电视制式转换器</P><P>DTV(Digital Television)数字电视</P><P>DVB(Digital Video Broadcasting) 数字视频广播 (Digital Video Bandwidth)数字视频带宽</P><P>ECC(Emitter Correction Code)纠错码</P><P>ECS(European Communications Satellite)欧洲通信卫星</P><P>EIRP（Effective Isotropic Radiation Power）等效全向辐射功率</P><P>ED(Energy Dispersal)能量扩散</P><P>EMM(Entitlement Management Message)授权管理信息</P><P>ENDE(Encoder/DECoder)编解码器</P><P>ENG(Electronic News Gathering)电子新闻采集</P><P>ENI(Equivalent Noise Input)等效噪声输入</P><P>EPG(Electronic Programme Guides)电子节目指南</P><P>ERP(Echo Return Loss)回波损耗</P><P>ES(Earth Station) 地球站 (Elementary Stream)基本码流</P><P>ESCR(Elementary Stream Clock Reference)基本码流时钟基准</P><P>f/D(Focal-Length-to –Diameter ratio of a reflector)卫星抛物反射面焦距对天线口径之比</P><P>FDM(Frequency Division Multiple)频分复用</P><P>FDMA(Frequency Division Multiple Access)频分多址</P><P>FE(Front End)前端</P><P>FEC(Forward Error Correction)前向纠错</P><P>FECR(Forward Error Corretion Rate)前向纠错率</P><P>FF(Feed Forward)前馈</P><P>FLL(Frequency Locked Loop)频率锁定环</P><P>FM(Frequency Modulation)调频</P><P>FM Threshold调频门限</P><P>FSS(Fixed Satellite Service)静止卫星业务</P><P>GaAs(Gallium Arsenide)砷化镓</P><P>Gb(Gigabit)吉比特</P><P>Gbps(Gigabits/Second)吉比特/秒</P>
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