Method and apparatus to minimize antenna backside signal response and ambiguity

Method and apparatus to minimize antenna backside signal response and ambiguity

Method and apparatus for minimizing antenna backside signal response and ambiguity in low frequency applications, particularly low frequency synthetic aperture radar (SAR). Various time delay elements are selectably switched into the signal path so as to cause a null to be placed in the antenna resp...

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Hauptverfasser: PASCHEN DEAN, EICHEL LARY, PRATT FRANK, MCCARTHY DANIEL
Format: Patent
Sprache:eng
Schlagworte:
ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRICITY
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creator PASCHEN DEAN
EICHEL LARY
PRATT FRANK
MCCARTHY DANIEL
description Method and apparatus for minimizing antenna backside signal response and ambiguity in low frequency applications, particularly low frequency synthetic aperture radar (SAR). Various time delay elements are selectably switched into the signal path so as to cause a null to be placed in the antenna response pattern in the direction of undesired radar returns. The means for selectably switching may be dithered so as to introduce modulation onto the undesired radar return to aid in the discrimination and removal of the undesired radar return from the SAR image during post processing.
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subjects ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRICITY
title Method and apparatus to minimize antenna backside signal response and ambiguity
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