LOW FREQUENCY/MEDIUM FREQUENCY (LF/MF) MULTI MODE ANTENNA/RECEIVER
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United States of America Patent
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Issued Date -
Jun 8, 2017
app pub date -
Dec 2, 2015
filing date -
Dec 2, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
An antenna receiver system is provided. The antenna receiver system includes an E-field antenna, a first H-field antenna, a second H-field antenna; three antenna radio frequency paths to amplify, filter, and convert three respective outputs from the three antennas to respective first, second, and third signals. Filters in the antenna paths simultaneously receive at least two of: eLORAN radio navigation signals from eLORAN ground stations; an EM pulse from lightning; and one of: CW unmodulated signals-ON/OFF modulated signals from a NDB radio navigation ground station; or an AM CW signal received from an AM radio broadcast station. A processor processes the first, second, and third signals and outputs information indicative of two or more of: a geographical latitude and longitude position of the vehicle derived from the eLORAN radio navigation signals; a lightning bearing and a lightning range; and a bearing of the vehicle.
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