日本两颗CS-2(樱花2号)通信卫星是1983年2月和8月发射的,这两颗国内通信卫星是以抢险救灾通信、远距离岛屿通信、弥补地面通信系统的临时通信为目的。到1987年共进行了5年的应用试验。本文重点介绍CS-2卫星应用试验的情况,试验项目有计算机网通信、报纸版面传真和电视节目分配等。 Two CS-2 (Sakhalin-2) communications satellites in Japan were launched in February and August 1983, and the two domestic communications satellites are aimed at disaster relief communications, long-distance island communications and make up for temporary communications by the terrestrial communications system . By 1987 a total of five years of applied trials. This article focuses on the application of CS-2 satellite test cases, the pilot project has computer network communications, newspaper layout fax and television program distribution.