1) TV Level Measurer
电视信号场强仪
3) class A signal area
强电视信号区
4) store television field signal
存储电视场信号
6) TV signal
电视信号
1.
In this paper, a few methods for the application of standard time and frequency disseminated by CCTV signal are proposed and some corresponding devices have been developed, such as color subcarrier synthesizer for standard frequency, standard frequency synthesizer using TV line sync signal, sample-and-hold phase detector, TV standard time digital clock, and so on.
本文介绍了电视信号中标准时间、频率的应用 ,其中包括彩色副载波标准频率综合器、电视行同步标准频率综合器、采样保持鉴相器、电视标准时间数字钟等设备的研制。
2.
This paper presents the basic process of TV signal digitalized,the common technology of compressing code and the essential conception about MPEG video compression standard.
文章介绍了电视信号数字化的基本过程和常用的码率压缩技术以及与MPEG视频压缩标准有关的基本概念,详细叙述了离散余弦变换方法,并比较了JPEG和MPEG的视频压缩编码标准以及在视频通信中的作用。
3.
This paper makes more detailed description of the principle and conception of digital treatment of TV signals, including component signal and composite signal, sampling and quantizing, composite coding and component coding.
对电视信号数字处理的原理和概念进行了较为详细的描述,包括:分量信号和复合信号、取样和量化、复合编码和分量编码。
补充资料：场强仪
测量无线电波电场强度的仪器。携带式设备，备有可转动的天线、无线接收机和电平表。用来测量空间各点的场强分布情况，以确定天线的安装位置和高度，也可研究天线的方向性、无线电波传播等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条