Communications: directive radio wave systems and devices (e.g. – With particular circuit – Digital processing
Patent
1997-10-24
1999-08-24
Sotomayor, John B.
Communications: directive radio wave systems and devices (e.g.,
With particular circuit
Digital processing
342 25, G01S 7292
Patent
active
059430060
ABSTRACT:
Special mathematical techniques are used to process accurate energy measurements in the focal plane of a high quality imaging system to produce high resolution images. The improved resolution exceeds the generally accepted Rayleigh limits. That is accomplished by adapting Fourier transform techniques and using both in-phase and quadrature or amplitude and phase components to recover the target scene. The measurement of the in-phase and quadrature or amplitude and phase components are taken in the focal plane and undergo parallel processing to preserve both amplitude and phase in the resulting image. A Fourier transform of the aperture characteristics is removed from a Fourier transform of the energy components to result in a Fourier transform of the image. The scene is recovered by taking an inverse Fourier transform of the result.
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Crane Patrick E.
Johnson E. Calvin
Crane Patrick E.
Creighton Wray James
Narasimhan Meera P.
Sotomayor John B.
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