附录C 英文缩写名词对照表
缩写名词英文全称中文译名
A/D Analog/Digital 模/数（转换）
ADPCM Adaptive DPCM 自适应差分脉冲编码调制ADSL Asymmetric Digital Subscribers Loop 非对称数字用户环路 AM Amplitude Modulation 振幅调制（调幅）
AMI Alternative Mark Inverse 传号交替反转
ARQ Automatic Repeat reQuest 自动重发请求
ASCII American Standard Code for
Information Interchange 美国标准信息交换码ASK Amplitude Shift Keying 振幅键控
ATM Asynchronous Transfer Mode 异步传送模式
BER Binary Error Rate 误比特率
BPF Band Pass Filter 带通滤波器
BPSK Binary Phase Shift Keying 二进制相移键控
CCITT International Consultive Committee for
Telegraph and Telephone 国际电报电话咨询委员会
（1993年更名为ITU）CDM Code Division Multiplexing 码分复用 CDMA Code Division Mulitple Access 码分多址
CMI Coded Mark Inversion 传号反转
CRC Cyclic Redundancy Check 循环冗余校验
DC Direct Current 直流
DFT Discrete Fourier Transform 离散傅里叶变换
DM Delta Modulation 增量调制
DPCM Differential PCM 差分脉码调制
鼓膜式板框压滤机
DPSK Differential PSK 差分相移键控
DSB Double Side Band 双边带
DSSS Direct-Sequence Spread Spectrum 直接序列扩谱
DTMF Dual Tone Multiple Frequency 双音多频
DVB Digital Video Broadcasting 数字视频广播
ETSI European Telecommunications Standards Institute
欧洲电信标准协会
F Frame 帧
FDD Frequency Division Duplex 频分双工
FDM Frequency Division Multiplexing 频分复用
FDMA Frequency Division Multiple Access 频分多址
FEC Forward Error Correction 前向纠错氨分解制氢
FH Frequency-Hopping 跳频
FIR Finite Impulse Response 有限冲激响应快干毛巾
FSK Frequency Shift Keying 频移键控
GMSK Gaussian MSK 高斯最小频移键控
GSM Global System for Mobile Communications 全球移动通信系统
HDB3 3rd Order High Density Bipolar 3阶高密度双极性
HDTV High Definition Television 高清晰度电视
IC Integrated Circuit 集成电路
IDFT Inverse Discrete Fourier Transform 逆离散傅里叶变换
IEEE Institute of Electrical and Electronics Engineers
电气和电子工程师学会
ISDN Integrated Services Digital Network 综合业务数字网
ISO International Standards Organization 国际标准化组织
ITM Information Transfer Mode 信息传递方式
ITU International Telecommunications Union 国际电信联盟
ITU-T ITU Telecommunication Standardization Sector
国际电信联盟-电信标准化部门
LAN Local Area Network 局域网
LDPC Low-Density Parity-Check 低密度奇偶校验
LED Light-Emitting Diode 发光二极管
LPF Lower Pass Filter 低通滤波器
MAN Metropolitan Area Network 城域网
MASK M-ary Amplitude Shift Keying 多进制振幅键控
MFSK M-ary Frequency Shift Keying 多进制频移键控
MPSK M-ary Phase Shift Keying 多进制相移键控
MSK Minimum Shift Keying 最小频移键控
NBFM Narrow Band Frequency Modulation 窄带调频
NBPM Narrow Band Phase Modulation 窄带调相
NRZ Non-Return to Zero 不归零
NT Network Termination 网络终端
OFDM Orthogonal Frequency Division Multiplexing 正交频分复用
OOK On-Off Keying 通-断键控
OQPSK Offset Quadrature Phase Shift Keying 偏置正交相移键控
OSI Open Systems Interconnection 开放系统互连
OTDM Optical Time Division Multiplexing 光时分复用OWDM Optical Wavelength Division Multiplexing 光波分复用
PAM Pulse Amplitude Modulation 脉冲振幅调制PCM Pulse Code Modulation 脉（冲编）码调制PCS Personal Communication System 个人通信系统PDH Plesiochronous Digital Hierarchy 准同步数字体系PDM Pulse Duration Modulation 脉冲宽度调制PDN Public Data Network 公共数据网
PLL Phase-Locked Loop 锁相环
PN Pseudo Noise 伪噪声
PPM Pulse Position Modulation 脉冲位置调制PSK Phase Shift Keying 相移键控
PSTN Public Switch Telephone Network 公共交换电话网
QAM Quadrature Amplitude Modulation 正交振幅调制QDPSK Quadrature DPSK 正交差分相移键控QPSK Quadrature Phase Shift Keying 正交相移键控
RAM Random Access Memory 随机存取存储器RE Radio Frequency 射频
远程运维服务
ROM Read-Only Memory 只读存储器
RZ Return-to-Zero 归零
SDH Synchronous Digital Hierarchy 同步数字体系SDM Space Division Multiplexing 空分
接种棒复用
SDMA Space Division Mulitple Access 空分多址
SHF Super High Frequency 超高频
SOC System On Chip 单片系统
SOH Section OverHead 段开销
SONET Synchrous Optical Network 光同步网络
SSB Single Side Band 单边带
STM Synchronous Transport Module 同步传送模块STM Synchronous Transfer Mode 同步传递方式
TCM Trellis Coded Modulation 网格编码调制TDM Time Division Multiplexing 时分复用
TDMA Time Division Multiple Access 时分多址
TE Terminal Equipment 用户终端设备
TS Time Slot 时隙
UHF Ultra High Frequency 特高频平面音响
VCO V oltage Controlled Oscillator 压控振荡器VSB Vestigial Side Band 残留边带
WAN Wide Area Network 广域网WBFM Wide Band Frequency Modulation 宽带调频WDM Wave Division Multiplexing 波分复用WLAN Wireless Local Area Network 无线局域网WPAN Wireless Personal Area Network 无线个域网WWAN Wireless Wide Area Network 无线广域网
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