中国通信卫星

Chinese Communication Satellites

自从我国于1970年4月24日发射第一颗人造地球卫星以来,已经发射了4颗静止通信卫星。它们分别定点在125°E,103°E,87.5°E,110.5°E赤道上空。进行过一系列通信试验——电视,电报、电话和传真,同时还成功地作了试用。 本文对我国的几颗通信卫星的主要性能作了介绍,着重叙述卫星有效载荷的工作原理和技术指标,并作了对比。还介绍了一些在轨测试结果,可以给使用我国通信卫星的各地面站作参考。

Since putting first man-made satellite into orbit on Apr. 24 1970, China has launched 4 geostationary communication satellites. They are positioned at 125°E, 103°E, 87.5°E and 110.5°E longitudeover the equator. Various communication experiments--TV, radio, telegram, telephone and fan are madesuccessfully. At the same time, these satellites have yet satisfied the trial uses of other aspectsThis paper describes the main characters of Chinese communication satellites. The payloads of satellites and some technical specifications are summarized. The results of in-orbit test are presented as well. Some comparisons between these satellites are indicated.