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Abstract: The distributed acoustic sensing (DAS) system based on phase-sensitive optical time-domain reflectometry ($\Phi $ -OTDR) uses optical fiber as a medium to detect external vibration ...

Abstract: The echo signals of Surface Acoustic Wave (SAW) sensors are characterized by weak energy and fast attenuation. Traditional demodulation algorithms struggle to achieve fast and accurate ...

The Fund seeks to replicate as closely as possible the total return of the ICE Exchange Listed Fixed & Adjustable Rate Preferred Securities Index. The Underlying Index is designed to measure the ...