1) digital terrestrial television broadcast
数字地面电视广播
2) digital terrestrial television broadcasting (DTTB)
数字地面电视广播,陆地数字电视广播
3) DTTB
地面数字电视广播
1.
After describing the basic concepts and technical features of single-carrier and multi-carrier systems, this paper analyzes and compares the performances of the two schemes against Doppler spread, Multi-path spread and Error propagation in DTTB mobile reception environment.
介绍了单载波和多载波系统的基本概念和技术特点,分析和比较了这两种制式在地面数字电视广播移动接收中抵抗多普勒扩展、多径扩展及误码扩散的性能,并对比了ATSC和DVB-T标准的移动接收实验测试结果。
2.
The development of the Digital Television Terrestrial Broadcasting (DTTB) and channel characters of the DTTB are first described in this paper,and the channel estimation method for the DMB-T (Terrestrial Digital Multimedia/Television Broadcasting) standard innovated by Digital TV R&D Center of Tsinghua University is then discussed in details.
本文在简介地面数字电视广播（Digital Television Terrestrial Broadcasting,DTTB的发展及其信道特点的基础上,描述了国外现有的DTTB传输标准和清华大学数字电视传输技术研发中心提出的DMB-T（Terrestrial Digital Multi-media Television Broadcasing）所采用的信道估计算法,并对以上信道估计性能进行比较,证明DMB-T信道估计算法受高斯噪声和时变信道估计的影响更小,而且算法实现更简单。
4) DTTB
数字电视地面广播
1.
Analysis on LDPC Decoding Algorithm of Chinese DTTB system;
中国数字电视地面广播系统中的LDPC译码器的设计
2.
With the background of the National Standard for DTTB, we propose a time-domain adaptive cancellation method which is achieved by analyzing the PN sequence in the received TDS-OFDM signal to obtain an estimation of the impulse response of the coupling channel, and then using the estimation result to generate a feedback signal to cancel the echo.
以数字电视地面广播国家标准为背景,提出一种在单频网通信系统中,通过专门电路对中继站回波干扰进行消除的方法。
5) DTMB standard
数字电视地面广播标准
6) Digital Terrestrial Television Broadcast (DTTB)
地面数字电视广播(DTTB)
补充资料：广播卫星地面站
卫星广播系统的地面设施。由天线系统(包括跟踪装置)、发射系统、接收系统、基带终端装置等组成。用于向广播卫星传输电视节目、接收和监视广播卫星发射的电波和广播信号与质量。此外，还要执行监视卫星工作状态、遥控卫星的工作，并与其他地球站保持通信等。
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