Amplitude selected phase interferometer angle measuring radar

Details Amplitude selected phase interferometer angle measuring radar Amplitude selected phase interferometer angle measuring radar

1972-01-24

1979-10-09

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343113R, G01S 322, G01S 332, G01S 922

Patent

active

041707745

ABSTRACT:
A phase interferometer elevation angle measurement radar has its antennas tilted slightly relative to each other so as to detect differences in amplitude from ground return signals; the phase difference in signals (normally utilized as an indication of depression angle below boresight in an interferometer radar) is checked for a positive rate of change; it is then compared against amplitude differences and is accepted as valid for use in generating an elevation angle only if within prescribed limits thereof. This resolves ambiguity in phase which results from a wide spread of antennas with respect to the wavelength of the radar.

REFERENCES:
patent: 3165740 (1965-01-01), Stoney
patent: 3239836 (1966-03-01), Chubb et al.
patent: 3309701 (1967-03-01), Bollinger et al.
patent: 3317910 (1967-05-01), Hausz
patent: 3665481 (1972-05-01), Low
patent: 3824595 (1974-07-01), Hall

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