underwater acoustic signal processing
Application of the signal processing to understand underwater environment using passive acoustic techniques
... the underwater acoustic systems, such as the sonar, echo sounder, etc limits their useful ...the signal to noise ratio of acoustic instruments the ambient noise field must be ...acquiring ...
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Underwater Acoustic Signal Analysis Toolkit
... The resulting transformed data allow the analyst to obtain important information characteristic of the signal. The -10dB bandwidth is the difference of the frequencies where the PSD crosses this threshold. The ...
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Interferometric Synthetic Aperture Sonar Signal Processing for Autonomous Underwater Vehicles Operating Shallow Water
... Water Acoustic Toolbox Version 10 (PC ...incident signal is a linear frequency modulated chirp centered at 175 kHz with a bandwidth of 30 kHz, a pulse period of ...
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Comparison of methodologies for signal detection in underwater acoustic noise in shallow tropical waters
... various signal processing applications, such as radar and sonar ...and underwater acoustic noise (UWAN) detected with sonar systems, are non-Gaussian and show highly impulsive ...for ...
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Need and Role of Underwater Acoustic Sensor Networks
... Sensors are hardware devices that produce a measurable response to a change in a physical condition like temperature or pressure. Sensors measure physical data of the parameter to be monitored. The continual analog ...
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A 1 Mbps Underwater Communications System using LEDs and Photodiodes with Signal Processing Capability
... of underwater and surface autonomous vehicles for a diverse number of applications including collecting environmental and oceanographic data, finding underwater mines, surveying underwater pipelines, ...
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The method of correlation investigation of acoustic signals with priority placement of microphones
... of acoustic signals between microphones t , such structure of a special processor does not allow to determine independently the spatial coordinates of the source of acoustic signal since it ...
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APPLICATION OF WAVELET TRANSFORM FOR SPEECH PROCESSING
... Wavelet transformation has ability to analysis different speech quality problems simultaneously in both time and frequency domain. The wavelet transform is useful in detecting and extracting disturbance features of ...
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Array signal processing algorithms for localization and equalization in complex acoustic channels
... The second half of this thesis concerns the recreation of a virtual sound field, where the ultimate goal is to be able to recreate a desired sound field, such that a lis- tener perceives the existence of a virtual source ...
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Performance Evaluation of Diversity Techniques in IDMA Scheme for Next Generation (4G) in Underwater Wireless Communication
... In this topic we overviewed the main challenges for efficient communication in under water acoustic sensor wireless networks. We outlined the peculiarities of the underwater channel with particular ...
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A novel cooperative spectrum signal detection algorithm for underwater communication system
... sonar signal. If most of the observed coefficients of a signal are equal to zero or nearly zero, and only a few non-zero coefficients exist, then the sonar signal is sparse in this domain, which is ...
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Smart Speaker Privacy Control Acoustic Tagging for Personal Voice Assistants
... People generally object to conversations being recorded without their given consent. Hence, laws exist in most coun- tries defining (very differently) how recording consent has to be given. For example, Germany is a ...
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Modeling Of Tow Wrinkling In Automated Fiber Placement Based On Geometrical Considerations
... as acoustic emission, has recently gained attention due to its high sensitivity and associated capability for early detection of ...for acoustic emission data collected from a prestressed concrete ...using ...
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Efficient Fast Stereo Acoustic Echo Cancellation Based on Pairwise Optimal Weight Realization Technique
... It is reported that the RLS algorithm exhibits, besides its high computational complexity, an instability issue especially for (nonstationary) speech signals, and thus has been dis- couraged to be used in acoustic ...
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Classification of Acoustic Emissions Using Modified Matching Pursuit
... learning signal sets in the ...other acoustic monitoring systems by changing the learning signal ...learning signal of a particular class is frequency shifted by a large amount, then it is ...
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A Review on Underwater Acoustic Sensor Networks: Perspective of Internet of Things
... power underwater wireless sensor network utilized globally for early warning against natural calamities like floods, Tsunamis, earthquakes, and ...detecting underwater oil fields, laying of undersea cables ...
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Review on an Underwater Acoustic Networks
... Network topology: Due to uniqueness of underwater channels and characteristics of acoustic Signal UAN network is different from ground based networks. But the goals of both networks like increasing ...
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Anchorless Underwater Acoustic Localization
... Several approaches for acoustic localization under water have been proposed so far [6], [7]. One of the most common range-based systems is long baseline (LBL), which employs trilateration, and thus requires three ...
6
Acoustic Signal Processing Algorithms for Reverberant Environments
... The approach of this thesis is to explore how the intrinsic properties of re- verberation can be exploited to improve acoustic signal processing algorithms. A general approach to soundfield modelling ...
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Acoustic Signal Encoding in Children with Auditory Processing Disorders
... masking noise. Masker frequency is varied and the minimum masking levels at each masker frequency are used to map the shape of the auditory filter. The psychophysical tuning curve method has been successfully used to map ...
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