通讯类常用英文缩写名词.doc

通讯类常用英文缩写名词ADPCM??adaptive differential pulse code modulating??自适应差分脉冲调制ADSL? ? asymmetric digital subscriber line? ?? ?? ?不对称数字用户环路（线路）AGC? ???automatic gain control? ?? ?? ?? ?? ?? ?自动增益控制AM? ?? ?amplitude modulation? ?? ?? ?? ?? ?? ? 振幅调制AMI? ???alternate mark invertion? ?信号交替反转码（双极码）AMPS? ? advanced mobile phone system? ?现代移动通信系统AN? ?? ?access network? ?接入网ARQ? ???automatic repeat request? ?自动重发要求ASK? ???amplitude shift keying? ?移幅键控ASIC? ? application specific integrated circuit? ?专用集成电路ASCII? ?America standard code for information interchange ASCII码ATM? ? asynchronous transfer mode 异步转移模式AUC? ? authentication center 鉴权中心AWGN??additive white Guassion noise 加性白色高斯噪声AU? ???administer unit 管理单元AUG? ? administer unit group 管理单元BCH? ? bose-chaudhuri-hocquenghem 以名字命名的一种高效循环码B-ISDN??broadband ISDN 宽带ISDNBPF? ???band pass filter 带通滤波器BPSK? ?binary phase shift keying 二进制移相键控BQM? ? balanceable quaternary phase shift keying 平衡四相移键控BSC? ???binary symmetric channel base station controller 二进制对称信道基站控制器BTS? ???base transceiver station 基站CCIR International Consultive Committee for Radiotelecommunication 国际无线电咨询委员会CCITT Consultive Committee for International Telegraph and Telephone 国际电报电话咨询委员会CDF? ? cumulative distribution function 概率（累积）分布函数CELP? ?code excited linear prediction 码激励线性预测CDMA??code division multiple access 码分多址CIR? ? carrier to interference ratio 载（波）干扰比C/N? ? carrier to noise ratio 载波信噪比CPFSK??continuous phase frequency shift keying 连续相位移频键控CPM? ?continuous-phase modulation 连续相位调制CQM? ?complex quaternary phase shift keying 复四相调制CRC? ?cyclic redumdancy check 循环冗余校验CMI? ?code mark invertive 符号及转码dBI? ?dB with respect to a isotropic radiator power 相对各向性辐射器增益dBdBI? ?dB milli watt 以毫瓦为电平零分贝dBW? ?dB watt 以一瓦为电平零分贝DCT? ?discrete cosine transform 离散余弦变换DECT??digital European cordless telecommunication 泛欧数字无绳通信（系统）DFT? ?discrete Fourier transform 离散傅氏变换DLL? ?delay locked loop 延时锁定环DM（?M）delta modulation 增量调制DMC??discrete memor