正确理解我国数字电视环境开始媒体关注的是高清晰度电视,认为下一代电视是高清晰度电视。美国的数字电视的发展使人们认识到下一代电视的实质是数字系统对模拟系 Correct understanding of China’s digital television environment Media began to focus on high-definition television, that the next generation of television is high-definition television. The development of digital television in the United States has made people realize that the essence of the next generation of television is that digital systems are good candidates for simulation