Results 41 to 50 of about 31,764 (232)

A Heterogeneous Robotic Swarm for Long-Term Monitoring of Marine Environments

open access: yesApplied Sciences, 2019
This paper describes an underwater acoustic sensor network consisting of a heterogeneous robotic swarm used for long-term monitoring of underwater environments. The swarm consists of a large number of underwater robots acting as sensor nodes with limited
Ivan Lončar   +6 more
doaj   +1 more source

Closed‐form solution for scaling a wireless acoustic sensor network

open access: yesIET Wireless Sensor Systems, 2023
A closed‐form solution for localising and synchronising an acoustic sensor node with respect to a Wireless Acoustic Sensor Network (WASN) is presented. The aim is to allow efficient scaling of a WASN by individually calibrating newly joined sensor nodes ...
Kashyap Patel   +2 more
doaj   +1 more source

Efficient calculation of sensor utility and sensor removal in wireless sensor networks for adaptive signal estimation and beamforming [PDF]

open access: yes, 2012
Wireless sensor networks are often deployed over a large area of interest and therefore the quality of the sensor signals may vary significantly across the different sensors.
Bertrand, Alexander   +4 more
core   +2 more sources

Optoelectronic Control of Redox Dynamics in POM Memristors for Noise‐Resilient Speech and Hardware‐Level Motion Recognition

open access: yesAdvanced Functional Materials, EarlyView.
Optoelectronic control of redox‐active polyoxometalate clusters in polymer matrices yields hybrid memristors with switchable volatile and non‐volatile modes, enabling reservoir‐type in‐sensor optical preprocessing and stable multilevel synapses for multimodal neuromorphic computing, including noise‐tolerant audiovisual keyword recognition and hardware ...
Xiangyu Ma   +13 more
wiley   +1 more source

A Novel Surface Acoustic Wave Sensor Array Based on Wireless Communication Network

open access: yesSensors, 2018
A novel surface acoustic wave (SAW) sensor array based on wireless communication network is prepared. The array is composed of four SAW sensors, a wireless communication network module, and a global positioning system (GPS) module.
Yong Pan   +5 more
doaj   +1 more source

Adaptive Distributed Resource Allocation in Wireless Sensor Networks [PDF]

open access: yes, 2006
Wireless sensor networks have emerged as a promising technology for a wide range of important applications. A major research challenge in this field is the distributed resource allocation problem, which concerns how the limited resources in a wireless ...
Foo, Mao Ching   +3 more
core   +1 more source

Acoustical Ranging Techniques in Embedded Wireless Sensor Networked Devices [PDF]

open access: yes, 2013
Location sensing provides endless opportunities for a wide range of applications in GPS-obstructed environments; where, typically, there is a need for higher degree of accuracy.
Jha, Sanjay   +4 more
core   +2 more sources

Smart Catheters for Diagnosis, Monitoring, and Therapy

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents a comprehensive review of smart catheters, an emerging class of medical devices that integrate embedded sensors, robotics, and communication systems, offering increased functionality and complexity to enable real‐time health monitoring, diagnostics, and treatment. Abstract This review explores smart catheters as an emerging class of
Azra Yaprak Tarman   +12 more
wiley   +1 more source

A Co-Design-Based Reliable Low-Latency and Energy-Efficient Transmission Protocol for UWSNs

open access: yesSensors, 2020
Recently, underwater wireless sensor networks (UWSNs) have been considered as a powerful technique for many applications. However, acoustic communications in UWSNs bring in huge QoS issues for time-critical applications.
Xiaohui Wei   +6 more
doaj   +1 more source

A Low-Cost Robust Distributed Linearly Constrained Beamformer for Wireless Acoustic Sensor Networks with Arbitrary Topology

open access: yes, 2018
We propose a new robust distributed linearly constrained beamformer which utilizes a set of linear equality constraints to reduce the cross power spectral density matrix to a block-diagonal form.
Hendriks, Richard C.   +3 more
core   +1 more source

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