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A Review of Research on Acoustic Detection of Heat Exchanger Tube [PDF]

open access: yesEAI Endorsed Transactions on Industrial Networks and Intelligent Systems, 2015
Leakage in heat exchanger tubes can result in unreliable products and dangerous situations, which could cause great economic losses. Along with fast development of modern acoustic detection technology, using acoustic signals to detect leakage in heat ...
Lei Shu   +5 more
doaj   +5 more sources

Signal classification for acoustic neutrino detection [PDF]

open access: yesNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2012
This article focuses on signal classification for deep-sea acoustic neutrino detection. In the deep sea, the background of transient signals is very diverse. Approaches like matched filtering are not sufficient to distinguish between neutrino-like signals and other transient signals with similar signature, which are forming the acoustic background for ...
Neff, M.   +7 more
openaire   +3 more sources

Bat detective-Deep learning tools for bat acoustic signal detection. [PDF]

open access: yesPLoS Comput Biol, 2018
SummaryPassive acoustic sensing has emerged as a powerful tool for quantifying anthropogenic impacts on biodiversity, especially for echolocating bat species. To better assess bat population trends there is a critical need for accurate, reliable, and open source tools that allow the detection and classification of bat calls in large collections of ...
Mac Aodha O   +18 more
europepmc   +10 more sources

A mosquito-inspired theoretical framework for acoustic signal detection. [PDF]

open access: yesProc Natl Acad Sci U S A
Distortion products are tones produced through nonlinear effects of a system simultaneously detecting two or more frequencies. These combination tones are ubiquitous to vertebrate auditory systems and are generally regarded as byproducts of nonlinear signal amplification.
Faber J   +4 more
europepmc   +5 more sources

Research on Reactor Condition Evaluation Method Based on Acoustic Vibration Characteristic Parameters and Weight Factors [PDF]

open access: yesE3S Web of Conferences, 2021
Compared with the traditional reactor abnormal state detection method, the acoustic vibration detection method combines the advantages of acoustic detection and vibration detection, which has the advantages of simple installation, strong portability and ...
Jia Peng-fei   +5 more
doaj   +1 more source

Reweighted Robust Particle Filtering Approach for Target Tracking in Automotive Radar Application

open access: yesRemote Sensing, 2022
In view of the decline of filtering accuracy caused by measured outliers in target tracking application, a novel reweighted robust particle filter is proposed to acquire accurate state estimates in an automotive radar system.
Qisong Wu   +5 more
doaj   +1 more source

Deep‐learning‐based line enhancer for passive sonar systems

open access: yesIET Radar, Sonar & Navigation, 2022
Detection of acoustic tonals from surfaces and underwater vehicles is important for passive sonar systems. Enhancements of the tonals are usually necessary in passive sonar prior to detections.
Donghao Ju   +5 more
doaj   +1 more source

Waveform design and signal processing method for integrated underwater detection and communication system

open access: yesIET Radar, Sonar & Navigation, 2023
For the integrated system of underwater detection and communication, an emitted waveform should satisfy both detection and communication requirements.
Qixiang Niu, Qunfei Zhang, Wentao Shi
doaj   +1 more source

A New Detecting Method for Underwater Acoustic Weak Signal Based on Differential Double Coupling Oscillator

open access: yesIEEE Access, 2021
For weak signal detection with known frequency, based on the double coupling Duffing oscillator method, a differential double coupling Duffing oscillator and Van der Pol-Duffing oscillator detection method is proposed.
Guohui Li, Jiuyang Cui, Hong Yang
doaj   +1 more source

Research on characteristics of acoustic signal of typical partial discharge models

open access: yesGlobal Energy Interconnection, 2022
The pulse current method, acoustic and ultrasonic partial discharge (PD) detection, and voiceprint PD detection are commonly used detection methods for the PD detection of power equipment.
Hang Ji   +5 more
doaj   +1 more source

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