当前,世界科技迅猛发展,世界广播电视已经进入数字化时代。各国政府十分重视广播电视从模拟向数字的转换,并制定了一系列政策和措施推进数字化进程。我国政府提出以信息化带动工业化发展的国 At present, the world’s science and technology are booming. The world’s radio and television have entered the digital age. Governments attach great importance to the analog to digital conversion of radio and television and have formulated a series of policies and measures to promote the digitization process. The Chinese government proposes to use information technology to promote the development of industrialization