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英国《空间飞行》杂志1978年11月一期刊载了一篇題为“卫兵——美国大鸟侦察卫星的演变”的署名文章。这篇文章比较详细地介绍了大鸟侦察卫星各个阶段的发展演变,以及它的侦察效果。同时对大鸟卫星上的各种侦察遥感器也有比较系统的分析。特别是给出了一张模拟大鸟详查相机拍摄的照片。从这张照片可以看出,0.3米地面分辨率究竟可看到什么?虽然这张照片经过我们重新制板印刷,分辨率大大降低,但地面上站着几个人的影子以及车辆等还是清晰可见。另方面,这张照片也足以说明,所谓大鸟卫星能够看到战场上的士兵是否刮过胡子等一些报道,纯系无稽之谈。这篇综述文章尽管较长,但颇值一读。本文在刊载时略有删节。
In a November 1978 issue of Space Flight magazine, British magazine published a signed article entitled “The Guard: The Evolution of the Big Bird Reconnaissance Satellites in the United States.” This article introduces in more detail the development and evolution of the various stages of the Bird Reconnaissance Satellites and its scouting effect. At the same time, there are also more systematic analyzes of all kinds of reconnaissance remote sensors on Big Bird satellite. In particular, given a photo simulation of bird watching camera. As can be seen from this photo, what is the resolution of 0.3m ground resolution? Although this photo was printed by our system, the resolution is greatly reduced. However, the shadow of a few people standing on the ground and the vehicles are still clearly visible . On the other hand, this photo is enough to show that the so-called bird satellite can see some soldiers on the battlefield covered his beard and some other reports, pure nonsense. This review article, though longer, is quite a good first reading. This article was slightly deleted when published.