论文部分内容阅读
由于卫星通信技术的飞速发展,近几年广播电视节目的卫星传送技术也随之发展。由过去的C波段传送,发展至今的Ku波段的传送;由电视节目的模拟信号传送,发展到今天的数字化传送。目前,除中央电视台的5套数字压缩采用了卫星Ku波段传送外,已有十省、区的电视节目亦采用了数字压缩方式进行卫星传送。在我国,今后新上卫星的电视节目也将要求采用MPEG 2DVB-S
Due to the rapid development of satellite communication technology, the satellite transmission technology of radio and television programs has also been developed in recent years. From the past C-band transmission, the development of Ku-band transmission so far; by analog TV signal transmission, the development of today’s digital transmission. At present, in addition to the 5 sets of digital compression of CCTV using satellite Ku band transmission, ten provinces and districts have also adopted digital compression for satellite transmission. In our country, the new satellite television program in the future will also require the use of MPEG 2DVB-S