浅谈卫星数字电视直播技术

A Discussion on the Live Broadcasting Technology of Digital Satellite TV

随着航天技术、数字电视技术、微电子技术、码率压缩技术的突破性进展,使卫星电视已由原来的C频段转播进入了数字Ku频段的直播卫星阶段。文章对卫星数字电视直播技术作了介绍,指出其优点和不足之处及其发展前景,阐述了国外卫星数字电视直播的现状,从而阐明了发展我国卫星电视的必要性和紧迫性。

With the breakthrough development of space technology, digital television, microelectronics and code rate compressing, satellite television has reached a live broadcasting satellite state of digital KU frequency live broadcasting from the original C frequency relay broadcasting. This article, after introducing the live broadcasting technology of digital satellite television and its advantages and disadvantage and prospect, has analyzed the current situations of it in foreign countries and the necessity and urgency of its development in our country.