AAS(Automatic Addressing System)自動尋址系統(tǒng)

ABR(Available Bit Rate)可用比特率

ACU(Antenna Control Unit)天線控制器

ACI(Adjacent-Channel Interference)鄰頻干擾

A/D(Anolog to Digital Conversion)模擬數(shù)字轉(zhuǎn)換

AFC(Automatic Frequency Control)自動頻率控制

AFC(Audio Frequency Control)聲頻編碼器

AFT(Automatic Frequency Tune)自動頻率調(diào)諧

AGC(Automatic Gain Control)自動增益控制

AM(Amplotude Modulation)調(diào)幅

ANT(Antenna)天線

ASIC(Application Specific Integrated Circuit)專用集成電路

ASW(Acoustic Surface Wave)聲表面波

AU(Adapter Unit)適配器，附加器

AUL(Average Useful Life)平均使用壽命

B(Baud) 波特(Byte)字節(jié)

B(bit)比特

BB(Baseband)基帶

BER(Bit Error Rate)誤碼率，比特差錯率

BF或 BPF(Band-pass Filter)帶通濾波器

BPS(bps)(Bits Per Second)比特/秒

BPSK(Biphase Shift Keying)二相相移鍵控

BS(Broadcast Satellite)廣播衛(wèi)星

BSS(Broadcast Satellite Service )廣播衛(wèi)星業(yè)務(wù)

C/Ku-Band Compatible C/K波段兼容

CAS(Conditional Access System)條件接收系統(tǒng)

C Band (4 GHz to 6 GHz)C波段（4GHz到6GHz）

CCIR(International Radio Consultative Committee)原國際無線電咨詢委員會

CCITT(Consultative Committee, International Telegraph and Telephone)國際電報電話咨詢委員會

CDV(Compressed Digital Video)壓縮數(shù)字視頻

CH (Channel)信道、通道、頻道

CHI(Channel Interface)通道接口

CHIO(Cannel Input/Output)通道輸入/輸出

CM(Communication Mutiplexer)通信復(fù)用器(Cross Modulation)交叉調(diào)節(jié)器制

C/N(Carrier/Noise)載（波）噪（聲）比

CN(Communication Network)通信網(wǎng)絡(luò)

CNR(C/N )(Carrier to Noise Ration)載噪比

CODEC(codec)(Coder-Decode)編解碼器

COFDM(Coded Orthogonal Frequency Devision Multiplexing)編碼正交頻分復(fù)用

COMSAT(Communications Satellite Corporation)美國通信衛(wèi)星公司

CP(Circular Polarization)圓極化

CP(Circular Polarigation)圓極化

CPU(Central Processing Unit)中央處理單元

CPW(Circular Polargation Wave)圓極化波

CS(Communication Satellite)通信衛(wèi)星

D/A（Digital/Analog Conversion）數(shù)字模擬轉(zhuǎn)換

DAC(Digital/Analog Conversion)數(shù)字模擬轉(zhuǎn)換

dB(deciBel)分貝，表示對數(shù)比例值

dBi(dB antenna gain relative to anisotroppoc source)天線的增益（相對于各向同性輻射源）

DBS(dB power relative to one watt)直播衛(wèi)星

dBW(dB power relative to one mili watt)相對于1W的功率的dB值

dBm(dB power relative to one mili watt) 相對于1mw 的功率dB值

DC(Direct Current)直流

D/C(Down Convertor)下變頻器

DE(De-emphasis)去加重

Demod(Demodulation )解調(diào)

Domsat(Domestic Communi-Salellile)國內(nèi)通信衛(wèi)星

DG(Differential Gain)微分增益

DPX(Diplexer)雙工器

DSNG(Digital Satellite News Gather)數(shù)字衛(wèi)星新聞采集

DSP(Digital Satellite Processor)數(shù)字信號處理

DSR(Digital Satellite Radio)數(shù)字衛(wèi)星廣播

DSS(Digital Satellite System)數(shù)字系統(tǒng)

DTH(Direct to home)直播到戶

DHI(Data Transmission Interface)數(shù)據(jù)傳輸接口

DTSC(Digital Television Standard Converter)數(shù)字電視制式轉(zhuǎn)換器

DTV(Digital Television)數(shù)字電視

DVB(Digital Video Broadcasting) 數(shù)字視頻廣播 (Digital Video Bandwidth)數(shù)字視頻帶寬

ECC(Emitter Correction Code)糾錯碼

ECS(European Communications Satellite)歐洲通信衛(wèi)星

EIRP（Effective Isotropic Radiation Power）等效全向輻射功率

ED(Energy Dispersal)能量擴散

EMM(Entitlement Management Message)授權(quán)管理信息

ENDE(Encoder/DECoder)編解碼器

ENG(Electronic News Gathering)電子新聞采集

ENI(Equivalent Noise Input)等效噪聲輸入

EPG(Electronic Programme Guides)電子節(jié)目指南

ERP(Echo Return Loss)回波損耗

ES(Earth Station) 地球站 (Elementary Stream)基本碼流

ESCR(Elementary Stream Clock Reference)基本碼流時鐘基準

f/D(Focal-Length-to –Diameter ratio of a reflector)衛(wèi)星拋物反射面焦距對天線口徑之比

FDM(Frequency Division Multiple)頻分復(fù)用

FDMA(Frequency Division Multiple Access)頻分多址

FE(Front End)前端

FEC(Forward Error Correction)前向糾錯

FECR(Forward Error Corretion Rate)前向糾錯率

FF(Feed Forward)前饋

FLL(Frequency Locked Loop)頻率鎖定環(huán)

FM(Frequency Modulation)調(diào)頻

FM Threshold調(diào)頻門限

FSS(Fixed Satellite Service)靜止衛(wèi)星業(yè)務(wù)

GaAs(Gallium Arsenide)砷化鎵

Gb(Gigabit)吉比特

Gbps(Gigabits/Second)吉比特/秒