Optical monopulse chirp processor

Details Optical monopulse chirp processor Optical monopulse chirp processor

1995-08-10

1996-08-13

Sotomayor, John B.

Communications: directive radio wave systems and devices (e.g.,

Clutter elimination

342162, 342 93, 342192, G01S 7292, G01S 734

Patent

active

055460895

ABSTRACT:
An optical chirp processor for the collection and processing clutter samples is presented that allows the simultaneous estimation of both the clutter mean and variance. The estimated clutter mean and variance allow the actual calculation of both clutter model parameters using a power spectrum analyzer, and a CFAR special purpose processor unit. The power spectrum analyzer is composed of: a spatial frequency demultiplexor, and a four element photodetector array. The special purpose processor is composed of: an A/D converter, a square root calculator, an averaging calculator, a combiner unit, a parameter memory unit, and a threshold calculator unit. The components of the CFAR processor may be implemented in a conventional CFAR processor (when modified by the teachings of the present invention) or in individual electronics components.

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