Review of imaging architecture

Alan H. Lettington; Isaiah M. Blankson; Magdy F. Attia; Dennis Dunn

doi:10.1117/12.477457

29 July 2002 Review of imaging architecture

Alan H. Lettington, Isaiah M. Blankson, Magdy F. Attia, Dennis Dunn

Proceedings Volume 4719, Infrared and Passive Millimeter-wave Imaging Systems: Design, Analysis, Modeling, and Testing; (2002) https://doi.org/10.1117/12.477457
Event: AeroSense 2002, 2002, Orlando, FL, United States

Abstract

This paper reviews various passive mm-wave imaging systems. It includes sources of radiation, atmospheric transmission and a brief summary of their various applications. This is followed by a review of methods for detecting mm-wave radiation. From a cost analysis it is shown that scanned systems are at present far more cost effective than focal plane array of receivers for high performance systems. There is a review of the various types of imaging system available with greater emphasis being placed on recent developments and their methods of beam forming. It is concluded that at present, and for the foreseeable future, optical beam forming and beam steering are the most cost effective. Some general remarks are included as to how receivers are matched to their collection apertures, followed by a section on optical beam forming components. The recent development of a lightweight, low cost, high performance reflective lens is included. It is then shown how this may be combined with mechanical scanning systems to form high performance passive mm-wave imaging systems.

Citation Download Citation

Alan H. Lettington, Isaiah M. Blankson, Magdy F. Attia, and Dennis Dunn "Review of imaging architecture", Proc. SPIE 4719, Infrared and Passive Millimeter-wave Imaging Systems: Design, Analysis, Modeling, and Testing, (29 July 2002); https://doi.org/10.1117/12.477457

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