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引言《现代雷达》1985年5期、6期和1986年1期,连载了作者写的讲座“合成孔径、逆合成孔径和成像雷达”,内容是雷达以宽波束小天线和目标作相对运动获得目标成像的技术。这是一个已经得到广泛应用、但仍在继续发展的微波成像方式。本讲座则写70年代末由美国宾夕法尼亚大学瓦利福奇研究中心(Valley Forge Research Center)开始研究发展的另一类雷达成像技术“大相控阵天线自适应聚焦成像”。有些文献称这种方式为无线电照相,意谓这种方法和光学照相采用类似原理:它对准要成像的目标或目标区邻近物先进行聚焦,在近场区聚焦后只能在聚焦点前后一定范围内是清楚的。虽从原理上不妨称其为照相,但实践
INTRODUCTION Modern Radar 1985, Issue 5, Issue 6 and Issue 1, 1986, contains a lecture entitled “Synthetic Aperture, Inverse Synthetic Aperture and Imaging Radar” authored by the author. The content of this article is that the radar obtains the relative motion of a wide beam small antenna and a target Target imaging technology. This is a microwave imaging method that has been widely used but still under development. This talk will cover another type of radar imaging technique “Adaptive Pan Focusing Imaging of Large Phased Array Antennas”, developed by the Valley Forge Research Center at the University of Pennsylvania in the late 1970s. Some say this approach is radiographic, meaning that this approach uses a similar principle to optical photography: it focuses on the target to be imaged or the vicinity of the target area before it is focused, and only after the focal point has been focused A certain range is clear. Although the principle may wish to call it a photo, but practice