Optical monopulse chirp processor
US5546089A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 1995 |
| Grant date | Aug 13, 1996 |
| Priority date | — |
| Expiry date | Aug 10, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/5244
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.