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We propose a novel dual cladding modes fiber up-taper interferometer-based surface-mounted acoustic sensor. It consists of two optimized fiber fusion up-tapers along a single-mode fiber that enable it to excite dual cladding modes, which leads to its interference pattern with an extinction ratio of more than 20 dB, guaranteeing it to be used as an intensity-modulated fiber acoustic sensor (FAS) with...
This paper develops an energy-aware and through- substrate sensor network using a Pulse Switching (PS) architecture for Structural Health Monitoring applications. Pulse Switching based protocols as developed in our prior work use single pulses instead of multi-bit packets for information delivery with ultra high energy-efficiency. Such packet-less networking is shown to be sufficient for event monitoring...
Compared to other localization algorithms, the SemiDefinite Programming (SDP) approach has proved to deliver accurate results even in noisy backgrounds. In this paper, we propose a novel design for underwater localization systems using SemiDefinite Programming. The objective is to provide marine scientists with a cost-effective efficient way in conducting relevant research. Two designs, fixed-position...
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