标准清晰度电视

该复用器以DSP和FPGA为主要器件，通过多个复用器的级联完成多路标准清晰度电视（SDTV）节目的复用。

The main devices of the system are DSP and FPGA . It can multiplex multiple SDTV programs into one TS stream through cascade of multiple multiplexers .

与MPEG-2TS输出、解码、显示系统联调，可满足SDTV（标准清晰度电视）和HDTV（高清晰度电视）TS对频率范围、步级精度、稳定度等的要求，解码、播放正常。

It suit well to the MPEG-2 TS output , decode and display system , meeting the demand on the range of frequency , step precision and stabilization of SDTV and HDTV TS. It can decode and play normally .

运行结果表明，此存储子系统不仅很好地满足了标准清晰度电视无压缩数字播放系统的要求，而且也可满足高清晰度电视数字播放系统的要求。

The operation results indicate that the storage subsystem can satisfy not only the demand of the uncompressed digital playing system for SDTV , but also the demand of the digital playing system for HDTV .

我国自行研制的第一代高清晰度电视功能样机视频编、解码器中，采用十字划分方案，以便使用标准清晰度电视视频编、解码芯片实现高清晰度电视视频编、解码器。

The cross division method is used in the video encoder and decoder of the first generation HDTV function prototype in China , so as to implement HDTV encoder and decoder by using SDTV encoder and decoder chips .

本系统全软件实时实现了单路标准清晰度数字电视信源解码器的功能，CPU利用率约为9000/。

The system implements the function of single channel standard definition digital television source decoder all in software , and the CPU load ratio is about 90 ~ % .

标准清晰度数字电视（SDTV）机顶盒的研究与开发具有重要的社会意义。

Since a transition from analog to digital television is taking place in china , the research and development of the standard definition TV ( SDTV ) STB have great importance and significance .

设计并实现了标准清晰度数字电视的立体声音频编码器。

Design and implementation of the audio encoder in SDTV are presented in this paper .

本方案性能价格比高，适用于标准清晰度数字电视移动接收，具有广阔的市场前景和应用价值。

This solution also has a very high capability / price ratio because it is suitable for receiving digital TV broadcasting signals in standard definition and has broad market prospect and application values .

最后，本文使用计算机生成了标准清晰度数字电视综合测试图，并对测试图中的各信号的生成和检测方法进行了详细介绍。

Then we generate a standard definition digital TV integrated test pattern in accordance with Broadcasting , Film and Television industry draft standard Test pattern for standard definition television broadcasting . And finally introduce the design and implementation interference detection .

目前播放的数字电视多数是标准清晰度数字电视，但是数字电视的发展并未停止，在不久的将来，高清晰度数字电视必将取代标准清晰度数字电视。

At present , most digital TV programs played by television stations are Standard Definition Television ( SDTV ), but the pace of technology has not slowed , and in the near future , SDTV will surely be replaced by High Definition Television ( HDTV ) which is more advanced .

阐述了基于AVS标准的高清晰度数字电视硬件结构和软件系统，执行AVS标准将促进我国数字音视频产业链的形成和完善，加快高清数字电视的全面发展。

The hardware structure and software system based on AVS are introduced . The analysis results show that the national audio-video industry and high definition digital TV will benefit from AVS standard .