NASA NTRS · 19770045593
Low-cost high-performance VLF receiver front-end
Abstract
A VLF receiver front end has been designed using standard linear IC's. The basic methods have been evaluated extensively on the omega 10.2-kHz channel but are readily adaptable to any other VLF frequency in the 10.2-20 kHz region. Applications for the modules exist in position location, time-frequency measurements, and signal propagation. The set provides control gates, zero-crossing signals, and analog outputs to interface with any type of digital logic, microprocessor, or analog signal processor.
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Burhans, R. W.. 1977-03-01. Low-cost high-performance VLF receiver front-end. https://ntrs.nasa.gov/citations/19770045593
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