As an International standard, MPEG-2 is applying widely to digital television, HDTV, multimedia technology and DVB.First, this paper simply introduces DTV and MPEG-2 coding / decoding principles.

• MPEG-2作为一种国际标准，已经在数字电视、高清晰度电视、多媒体技术领域以及数字视频广播(DVB)中获得了广泛的应用。