The principles and applications of microwave holography are reviewed to establish the need for a high resolution microwave camera. The realization of such a camera requires solving several problems stemming from: (a) the economical constraints associated with the construction of microwave imaging apertures with large numerical apertures needed for high resolution and (b) the desirability of real-time processing and image retrieval. Recent advances made in the solution of these problems are discussed with attention given to a new method of swept frequency synthesis of an imaging aperture and real-time optical computing of the collected data. (Scanned holography microwave imaging, optical computing, aperture synthesis by frequency diversity, super-resolution).
N. H. Farhat,
"Microwave Holographic Imaging-Prospects For A Real-Time Camera", Proc. SPIE 0180, Real-Time Signal Processing II, (21 September 1979); doi: 10.1117/12.957307; https://doi.org/10.1117/12.957307