Polarization detector

Details Polarization detector Polarization detector

1980-06-23

1982-04-06

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343100PE, G01S 1302

Patent

active

043238998

ABSTRACT:
An apparatus and method for detecting the polarization of signals reflected from targets immersed in clutter. Signals reflected from targets illuminated with quasimonochromatic electromagnetic signals such as FMCW radar are received by antennas responsive to orthogonally polarized components of the reflected signals. These received orthogonal signal components are then analyzed in a processor which detects the polarization of the reflected signal by estimating the Stokes parameters for the reflected signal. The estimated Stokes parameters may then be used to generate detection criteria that are compared to a predetermined threshold level. The presence of the target is indicated when the detection criteria level exceeds the level of the predetermined threshold.

REFERENCES:
patent: 3234547 (1966-02-01), Katzin
patent: 3689924 (1972-09-01), Caruso, Jr.
patent: 3772689 (1973-11-01), Root, Jr.
patent: 4001820 (1977-01-01), Rosenbaum et al.
patent: 4053882 (1977-10-01), Van Etten
patent: 4106015 (1978-08-01), Beguin et al.

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