卫星版面远传

Satellite Communication for Newspaper Format

本文提出了基于BDPDL(北大版面描述语言)描述结果的新概念版面远传的设计思想,可使文字信息量减少400倍,整体信息量减少25倍。作到高时效,无失真的传送版面。文中还介绍了已完成的利用PES和TES两种地面站建成的,以卫星信道为主地面信道为辅的大型版面远传系统。

Newspapers published in other province are printed in a locality. Using traditional method local printing house got newspaper format from airmail edition or FAX. Poor quality and low efficiency of newspaper format transimission puzzled newspaper enterprise of our country for a long time. In this paper a new method, New Concept Newspaper Format Transmission named BDPDL (Peking University Page Description Language) is advanced. The paper introduces principal, development and design works of two real large newspaper transmission system. One is based PES (Persanal Earth Station) satelite system, another is based TES (Telephony Earth Station) system, and telephony channal is used as secondary communication system.