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近几年来,美国除了发射大鸟侦察卫星外,还发射了一种叫作KH-11的大型侦察卫星。据说这种新型卫星大概就是第五代侦察卫星。它与大鸟的区别,除了轨道较高,寿命更长外,重要的是KH-11是用数字传输提供高分辨的侦察照片,而大鸟则是用回收胶卷获得高分辨率照片。本文根据美国《航空周刊》1979年4月9日的一篇报道编译整理出来的,仅供参考。
In recent years, in addition to launching the bird reconnaissance satellite, the United States has also launched a large reconnaissance satellite called the KH-11. It is said that this new satellite is probably the fifth generation of reconnaissance satellites. What distinguishes it from the big bird is that the track is taller and has a longer lifespan. The important thing is that the KH-11 uses digital transmission to provide high-resolution reconnaissance photos, while the big bird uses recycled film for high-resolution photographs. This article is compiled and compiled according to a report published by the American “Aviation Weekly” on April 9, 1979 and is for reference only.