Results 261 to 270 of about 244,156 (306)
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Acoustic counting algorithms for wireless sensor networks
Proceedings of the 6th ACM symposium on Performance evaluation of wireless ad hoc, sensor, and ubiquitous networks, 2009This study presents two algorithms that count birds with wireless sensors equipped with microphones. Audio inputs are parametrized to get some kind of fingerprints which are used to recognize the song of the birds in a classification process. Afterward, counting algorithms derive an estimate of the number of singing birds in the habitat.
Gros-Désormeaux, Harry +3 more
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International Journal of Communication Systems, 2023
With the technological advancements, wireless sensor network (WSN) has played an impeccable role in monitoring the underwater applications. Underwater WSN (UWSN) is supported by WSN but subjected to data dissemination in an acoustic medium.
Keshav Kumar Tiwari, Samayveer Singh
semanticscholar +1 more source
With the technological advancements, wireless sensor network (WSN) has played an impeccable role in monitoring the underwater applications. Underwater WSN (UWSN) is supported by WSN but subjected to data dissemination in an acoustic medium.
Keshav Kumar Tiwari, Samayveer Singh
semanticscholar +1 more source
Acoustic Localization Algorithm Using Wireless Sensor Networks
2009 Second International Conference on Intelligent Computation Technology and Automation, 2009This paper proposes a distributed acoustic passive localization method using WSN. First, head nodes compute the azimuth angle and pitch angle based on the time delay of arrival (TDOA) from each participating WSN nodes in clusters. Second, the location of acoustic source is calculated from the angles measured above and geometry positions of the two ...
Jingjing Jia, Mingjie Liu, Xiaofeng Li
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Relative Acoustic Transfer Function Estimation in Wireless Acoustic Sensor Networks
IEEE/ACM Transactions on Audio, Speech, and Language Processing, 2019In this paper, we present an algorithm to estimate the relative acoustic transfer function RTF of a target source in wireless acoustic sensor networks WASNs. Two well-known methods to estimate the RTF are the covariance subtraction CS method and the covariance whitening CW approach, the latter based on the generalized eigenvalue decomposition.
Jie Zhang +2 more
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IEEE Internet of Things Journal, 2020
Soundscape standard (ISO 12913) is mainly oriented to describe the psychoacoustic annoyance (PA) due to the perceived sound in different environments. The evaluation of this annoyance is commonly based on the Zwicker and Fastl model that defines several ...
Adolfo Pastor-Aparicio +5 more
semanticscholar +1 more source
Soundscape standard (ISO 12913) is mainly oriented to describe the psychoacoustic annoyance (PA) due to the perceived sound in different environments. The evaluation of this annoyance is commonly based on the Zwicker and Fastl model that defines several ...
Adolfo Pastor-Aparicio +5 more
semanticscholar +1 more source
Acoustic self-localization of a wireless sensor network
The Journal of the Acoustical Society of America, 2005One of the biggest challenges to the field of wireless sensor networks is self-localization: that is the determination of the relative and absolute coordinates of each sensor node in the network. Previous work has been done to locate hydrophone arrays. However sensor networks have some unique constraints that make this more challenging.
Schmidt, Peter L. +2 more
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J. Interconnect. Networks
Water has covered a wide part of the earth’s surface. Oceans and other water bodies contain significant natural and environmental resources as well as aquatic life.
K. Sannathammegowda
semanticscholar +1 more source
Water has covered a wide part of the earth’s surface. Oceans and other water bodies contain significant natural and environmental resources as well as aquatic life.
K. Sannathammegowda
semanticscholar +1 more source
Deployment analysis of underwater acoustic wireless sensor networks
The Journal of the Acoustical Society of America, 2012In this paper, underwater sensor nodes and gateway nodes deployment strategies for two-dimensional communication architecture in Underwater Acoustic Wireless Sensor Networks(UWSNs) are proposed. In the sensor nodes deployment strategy, underwater sensor nodes are deployed in two rows along the coastline, which is of complete coverage and connectivity ...
Xia Li, Shiliang Fang
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IEEE Transactions on Wireless Communications
We are often surrounded by intelligent devices with one or more acoustic sensors, which constitute a wireless acoustic sensor network (WASN) and can be exploited for various audio/speech processing tasks.
De Hu, Qintuya Si, Weiwei Zhang
semanticscholar +1 more source
We are often surrounded by intelligent devices with one or more acoustic sensors, which constitute a wireless acoustic sensor network (WASN) and can be exploited for various audio/speech processing tasks.
De Hu, Qintuya Si, Weiwei Zhang
semanticscholar +1 more source
Coding and Enhancement in Wireless Acoustic Sensor Networks
2015 Data Compression Conference, 2015We formulate a new problem which bridges between source coding and enhancement in wireless acoustic sensor networks. We consider a network of wireless microphones, each of which encoding its own measurement under a covariance matrix distortion constraint and sending it to a fusion center.
Zahedi, Adel +4 more
openaire +2 more sources