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real time acoustic communications

Signal processing and field measurements for underwater acoustic communications

Signal processing and field measurements for underwater acoustic communications

... A time reversal mirror refocuses time delayed arrivals at the intended depth, and this property is used to reduce ISI for communications (Dowling, 1994; Edelmann et ...passive time reversal ...

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A Compact Real-Time Acoustic Bandwidth Compression System for Real-Time Monitoring of Ultrasound

A Compact Real-Time Acoustic Bandwidth Compression System for Real-Time Monitoring of Ultrasound

... correlate acoustic cue with the animal behaviours in order to improve our understanding to their communications and behaviours [6] ...animals’ acoustic cues in real- time and interact ...

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WaterCom   A Multilevel, Multipurpose Underwater Communications Test Platform

WaterCom A Multilevel, Multipurpose Underwater Communications Test Platform

... with acoustic modems (some carry high-speed OFDM acoustic ...Their acoustic modems are much simpler than those of static nodes as, in most experiments, they are simply used for ...the acoustic ...

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Design and manufacture of surface acoustic wave sensors for real time weigh in motion

Design and manufacture of surface acoustic wave sensors for real time weigh in motion

... 4. Wafer layout: modern SAW devices for communications have a surface area of c. 2x1mm, which makes them far too small for manual handling as strain sensors. A nominal die size of 6x6mm was chosen for the SAW sen- ...

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Time Delay Estimation in Room Acoustic Environments: An Overview

Time Delay Estimation in Room Acoustic Environments: An Overview

... The estimation of TDOA would be an easy task if the two received signals were merely a delayed and scaled version of each other. In reality, however, the source signal is generally immersed in ambient noise since we are ...

19

Literature Review on Automatic Speech Recognition

Literature Review on Automatic Speech Recognition

... in real time ...Dynamic time warping technique in which they recognised each digit by calculating distance ...dependent, real time, an Isolated and connected word recognition system for ...

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WELCOME, FRIEND. WE VE BEEN WAITING FOR YOU.

WELCOME, FRIEND. WE VE BEEN WAITING FOR YOU.

... every time you and they use those gmail, aol or yahoo accounts? You can even create customized folders and save your emails and attachments just like you do now, except you’ll be HIPAA ...

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Simulation of Multimodal Optical and Acoustic Communications in Underwater Networks

Simulation of Multimodal Optical and Acoustic Communications in Underwater Networks

... both acoustic and optical communications together in a multi-modal hybrid network: the most appropriate physical layer is chosen according to the quality of the transmissions that take place over ...

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Raspberry Pi and Arduino Based Automated Irrigation System

Raspberry Pi and Arduino Based Automated Irrigation System

... In this work, we successfully develop a system that can help in an automated irrigation system by analyzing the moisture level of the ground. The smart irrigation system proves to be a useful system as it automates and ...

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Audio steganography with AES for real-time covert Voice over Internet Protocol communications

Audio steganography with AES for real-time covert Voice over Internet Protocol communications

... In this study we proposed a VoIP steganographic algorithm with AES and key distribution to achieve a real-time covert VoIP communication. The encryption and embedding processes were almost synchronized. And ...

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Guidance for Industry and FDA Staff

Guidance for Industry and FDA Staff

... for acoustic output exposure levels will not exceed the global maximum acoustic output exposure levels specified in Sections 2 (Track 1) or Section 3 (Track ...between acoustic output and sensitivity ...

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A Novel Medium Access Control Protocol for Real Time Wireless Communications in Industrial Automation

A Novel Medium Access Control Protocol for Real Time Wireless Communications in Industrial Automation

... Several wired communication standards have been established for industrial automation systems [2] [3] [4] [5] [6]. The most advanced ones are based on the Ethernet physical layer, but the MAC protocols are unique and ...

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Comparison Between Real-Time Polymerase Chain Reaction and DNA-Microarray in Detection and Identification of Mycobacterium Species

Comparison Between Real-Time Polymerase Chain Reaction and DNA-Microarray in Detection and Identification of Mycobacterium Species

... multiplex real-time PCR primers targeting the 16s rRNA gene and the internal transcribed spacer (ITSs) for identification of 314 mucobacterial culture positive ...

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Nonstationary System Analysis Methods for Underwater Acoustic Communications

Nonstationary System Analysis Methods for Underwater Acoustic Communications

... channel time-scale features extracted after 20 MPD iterations. The estimated time-delay and Doppler- scale parameters are represented by crosses, emphasizing the channel ...underwater acoustic signal ...

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Light sheet microscopy with acoustic sample confinement

Light sheet microscopy with acoustic sample confinement

... contactless acoustic gradient force trap for sample con fi nement in light sheet ...of real-time environmentally controlled experiments with wide- fi eld low photo-toxic imaging, which we demonstrate ...

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Good Practice Guide No Underwater Noise Measurement

Good Practice Guide No Underwater Noise Measurement

... It is not yet clear how to provide an entirely robust definition of source level for marine percussive pile driving. This is a source of some complexity, which penetrates both the water surface and the seabed, and where ...

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Elephant Vocalization Direction of Arrival Estimation under Acoustic Sensor Network with Impact of Error Rectification Method

Elephant Vocalization Direction of Arrival Estimation under Acoustic Sensor Network with Impact of Error Rectification Method

... In case of a tie two sensor has to sense equal no of targets so that it can select the sensor with higher remaining energy life. Energy consumed by a sensor are sensing energy and communication energy. The sensing ...

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Large-scale numerical modeling of hydro-acoustic waves generated by tsunamigenic earthquakes

Large-scale numerical modeling of hydro-acoustic waves generated by tsunamigenic earthquakes

... lowed by tsunamis that devastated the coastal villages at the Ionian Sea coasts and in the Strait of Messina (Tinti et al., 2004). The strongest effects were concentrated around Au- gusta, where the initial withdrawal of ...

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Automatic Indexing for Content Analysis of Whale Recordings and XML Representation

Automatic Indexing for Content Analysis of Whale Recordings and XML Representation

... a real- time passive underwater acoustic tracking algorithm for multiple whales using four ...hydrophones. Acoustic localization permits the study of whale behavior in deep water without ...

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Fuzzy-Rule-Based Object Identification Methodology for NAVI System

Fuzzy-Rule-Based Object Identification Methodology for NAVI System

... texture, and position. The object of interest and its features information are known and specified before the recognition task can be performed [16]. On the other hand, the selec- tion of object of interest for a blind ...

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