通信网络专业术语对照表(4)

网络常用资料,帮助有用的人

MPTS Multiple Programs Transport Stream 多节目码流

MultiCrypt Is used to describe the simultaneous operation of several CA systems. 多密

MUX Multiplexer 复用器

NIT Network Information Table 网络信息表

NTSC N ational Television Systems Committee NTSC 制式，全国电视系统委员会制式

NVOD Near Video On Demand 准视频点播

OAM Operation， Administration and Maintenance 操作维护管理

OFDM Orthogonal Frequency Division Multiplexing 正交变频分多路技术

PAL Phase Alternating Line 逐行倒相制

PAT Program Association Table 节目相关表

PCR Program Clock Reference 节目时钟参考

PDG Private Data Generator 专用数据发生器

PDH Pseudo synchronous Digital Hierarchy 准同步数字下列

PES Packet Elementary Stream 包基本流

P-frame Previous Frame 预知帧

PID Packet Identifier 数据包标识

PMT Program Map Table 节目映射表

PPV Pay Per View 节目按次付费

PSI Program Specific Information 节目详细信息

PSK Phase Shift Keying 相移键控法

PSTN Public Switched Telephone Network 公共开关电话网络

PSW Pan and Scan Window 摇摄及扫描窗口

QAM Quadrature Amplitude Modulation 正交振幅调制方式

QoS Quality of Service 服务质量

QPSK Quaternary Phase Shift Keying 正交（四相）相移键控调制

RF Radio Frequency 射频

RS Reed-Solomon

SAS Subscriber Authorization System 订户授权系统