The paper discusses key technologies of the digital television system, analyzes the TS parameters and clarifies the application methods of Transport Stream Analyzer in digital cable television system.
论述数字电视系统的关键技术，对传输码流参数进行分析，提出码流分析仪在有线数字电视系统中的应用方法。
The digital credential would be a "voluntary trusted identity" system that would be the high-tech equivalentof a physical key, a fingerprint and a photo ID card.
该数字证书可以成为一个“自愿受信身份”系统，从而成为物理密钥、指纹以及身份证的高科技等价物。
Digital set-top box is a key part in HDTV system.
在数字电视系统中，数字机顶盒是该系统的关键部件。
Public key Infrastructure (PKI) supports public key crypto system and digital signature on the national information highway and would play an important role in providing those services.
公钥基础结构支持国家信息高速公路上的公钥密码体制和数字签名，将在提供这些服务中起非常重要的作用。
In this Paper, the Principles of hot box digital recognition and centralized detection system are expounded and certain key components analyzed theoretically.
本文阐明了数字式热轴自动判别及集中检测的原理，并从理论上对一些重点环节进行分析。
The choice of auto focus value for an image is the key factor to auto focus system of digital camera.
图像自动聚焦算法聚焦值的选择是数字相机自动聚焦系统的关键问题。
This study embodies the key-technology application of digital gas fields, in the mean time, it puts forward the distributed load balance of digital gas fields 'storage management information system.
这项研究在体现数字化气田关键技术应用的同时，提出了数字化气田仓储管理信息系统的分布式负载平衡问题。
The scheme perfectly integrates digital signature scheme with public key cryptography system.
该方案是数字签名与公钥密码体制的有机集成。
Data compressed encoding and uncompressed decoding is one of the key technologies applied widely in digital communication system at present.
数据压缩编码与解压解码技术是目前广泛应用的数字通信系统中的关键技术之一。
The model not only realizes key management, encrypted communication, digital signature and identity authentication, but also is fit for network system with real time and large data transfer.
本模型不仅适用于实时的、大数据传输的网络系统，而且实现了密钥管理、加密管理、数字签名以及身份认证等功能。
Digital down conversion plays a key role in the digitized and software-oriented process of the receiver system.
数字下变频在接收系统的数字化和软件化过程中起到了至关重要的作用。
Conditional Access System (CAS) is one of the key technologies of digital television.
条件接收系统(CAS)是数字电视的关键技术之一。
The key component of the system is a digital intermediate frequency receiver employing DSP and FPGA to obtain amplitude and phase data in real-time, which improves measurement speed and flexibility.
该系统的关键部件是一个数字中频接收机，利用DSP和FPGA实时获取幅度和相位数据，从而提高了测量速度和灵活性。
To design the high reliability DSP (Digital Signal Processing) applied system is the key problem in the application of DSP chip.
设计高可靠性的DSP(数字信号处理器)应用系统是DSP芯片实际应用中所遇到的关键问题。
As a key technology in digital quadrature demodulation system, the direct IF sampling filter with sharp cutting-off transition band can improve the performance of demodulation system.
中频采样是数字正交鉴相系统中的一项关键技术，具有锐截止特性的中频采样滤波器可以改善鉴相系统的性能。
This system realizes key management, encrypted communication, digital signature and identity authentication etc.
本系统实现了密钥管理、加密管理、数字签名以及身份认证等功能。
This paper presents the overall scheme of the intelligent machining system for pistons from digital control, measurement and intelligent machining techiques. Some of key technologies are discussed.
从数字控制技术、测量技术和智能加工技术三方面论述了活塞外圆智能加工系统的总体规划和一些关键技术问题。
The key of the fully digital PWM speed regulation system is how to get the PWM signals on-line.
全数字PWM 交流主轴驱动系统的关键在于如何实时地得到PWM 开关信号。
The aim of the project is to develop a digital vibratory feeding system and carry out study, in depth, on its key technologies.
本课题旨在研发一数字化振动传输系统，并对其关键技术进行深入研究。
VHDL is considered as a core of digital system design and a key technique of implement digital systems design.
硬件描述语言(VHDL)是数字系统高层设计的核心，是实现数字系统设计新方法的关键技术之一。
Accurate measurement of geometrical distortion of image display system with wide-angle objective lens is the precondition and key of digital distortion correction.
准确地测量含有广角耦合物镜的图像显示系统的几何畸变是实现图像显示系统几何畸变数字校正的前提和关键。
Discussed is key technology needed in system and proved is feasibility of the digital pipeline technology applied in gas pipelines in serve.
讨论了构建系统所需的支撑技术，证明了数字化管道技术应用于在役输气管道的可行性。
In the system design FPGA slug as a key device realizes digital phase control of high intensity focused ultrasound through base software programming.
在该系统设计中，以FPGA芯片作为核心器件，通过底层软件编程实现高强度聚焦超声的数字化相位调控。
As a key technology in digital imaging system, autofocus plays an important role in terms of improving performance of digital imaging products.
作为数字成像系统的关键技术之一，自动对焦技术对于提升我国数字成像产品的竞争力具有十分重要的作用。
CCD driver system is the key part of digital camera, which is related camera's performance technical parameters.
CCD驱动系统是数码相机的核心部分，它关系到整个相机的性能和技术指标。
System clock recover is the key in digital TV system.
系统时钟恢复是数字电视系统设计中的难点。
The individualized services of digital library are the key part in the service system of a digital library and it is also the necessary of the reality and the current trend in a digital library.
数字图书馆的个性化服务是整个数字图书馆服务系统中十分关键的部分，是数字图书馆的现实需要和大势所趋。
The key of digital transmission system lies in carrier synchronization and channel equalization.
数字传输系统的关键在于载波同步和信道均衡。
In the dissertation, the key realization and application techniques of airborne digital map system are studied, and in the end system simulation is also presented.
针对综合低空突防系统工程应用的需要，本文研究了机载三维数字地图系统的实现和应用的关键技术，最后进行了综合仿真。
In the dissertation, the key realization and application techniques of airborne digital map system are studied, and in the end system simulation is also presented.
针对综合低空突防系统工程应用的需要，本文研究了机载三维数字地图系统的实现和应用的关键技术，最后进行了综合仿真。
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