摘要
一.数字电视实现
数字电视(Digital TV)是从电视信号的采集、编辑、传播、接收整个传输系统使用数字化处理的数字电视广播系统.数字电视利用MPEG标准中的各种图像格式,把现行模拟电视制式下的图像、伴音信号的平均码率压缩到大约4.69-21Mbps,其图像质量可以达到电视演播室近似胶片的质量水平,图像水平清晰度达到500-1200线以上,并采用AC-3音频信号压缩技术,传输5.1声道的环绕声信号.
The time passes! The evolution of television is also developing accordingly. Today its influence penetrates all aspects of our life. The following is the introduction of the flourish development of the digital television,which is belong to the third generation TV technology. It comes down to the method to make the digital television come true.the assortment,the technology reference and application.Furthermore,the relevent content of the criteria of all kinds of digital television.
