ANTI-JAMMING AND REDUCED INTERFERENCE GLOBAL POSITIONING SYSTEM RECEIVER METHODS AND DEVICES

ANTI-JAMMING AND REDUCED INTERFERENCE GLOBAL POSITIONING SYSTEM RECEIVER METHODS AND DEVICES

Global navigation satellite system (GNSS) radio frequency signals broadcast from geo-stationary satellites 20,000 km above the earth when received by GNSS receivers are fundamentally weak. Accordingly, these GNSS receivers are vulnerable to accidental and deliberate interference from a range of synt...

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Hauptverfasser: HAUTCOEUR, JULIEN, PANTHER, GYLES
Format: Patent
Sprache:eng
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ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRICITY
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PANTHER, GYLES
description Global navigation satellite system (GNSS) radio frequency signals broadcast from geo-stationary satellites 20,000 km above the earth when received by GNSS receivers are fundamentally weak. Accordingly, these GNSS receivers are vulnerable to accidental and deliberate interference from a range of synthetic sources as well as natural sources. Existing anti jamming technologies such as controlled reception pattern antennas, adaptive antennas, null-steering antennas, and beamforming antennas etc. are expensive and incompatible with many lower cost and footprint limited applications. However, in many applications the GNSS antenna is mounted upon a fixed or mobile element such that accidental and intentional jammers tend to be in the plane of the antenna or below it. Accordingly, there are presented designs and techniques to improve the anti-jamming or interference performance of GNSS receivers by further reducing the responsivity of the GNSS receiver to signals in-plane or below the plane of the antenna.
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subjects ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRICITY
title ANTI-JAMMING AND REDUCED INTERFERENCE GLOBAL POSITIONING SYSTEM RECEIVER METHODS AND DEVICES
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