Time-frequency segmentation : statistical and local phase analysis
|
|
- Esther Howard
- 8 years ago
- Views:
Transcription
1 Time-frequency segmentation : statistical and local phase analysis Florian DADOUCHI 1, Cornel IOANA 1, Julien HUILLERY 2, Cédric GERVAISE 1,3, Jérôme I. MARS 1 1 GIPSA-Lab, University of Grenoble 2 Ampère Laboratory, Ecole Centrale de Lyon 3 CHORUS chair, Foundation of Grenoble Institute of Technology March 13, 2013
2 Sommaire Context State of the Art 1 Introduction Context State of the Art 2 3 Local Phase Analysis Application to real signals 4
3 Introduction I Context State of the Art Context Segmentation of time-frequency plane Instantaneous frequency law estimation Application to Passive Acoustics Monitoring (PAM) of marine mammals Impact of anthropic pressure (shipping noise, sonar, seismic exploration, etc.) on marine mammal's health Detection, classication, density estimation and localization of marine mammals Passive tomography
4 Introduction II Context State of the Art Signal processing constraints Colored and/or non-stationary noise Non linear frequency modulations Multi-component (unknown number), time-frequency overlapping, channel fading Large databases Single sensor (hydrophone)
5 Context State of the Art Ocean Polyphony - Acoustic landscapes Ocean is not a world of silence ("The silent world" [Cousteau & Malles 1956] )
6 Introduction Context State of the Art Study of populations & Anthropic activities : Meso-acoustic scale (10,000m2)
7 Context State of the Art Arctic & Global warming : Macro-acoustic scale (10,000km 2 ) Kinda, Simard, Gervaise, Mars & Fortier (2012), 'Under-ice ambient noise in Eastern Beaufort Sea, Canadian Arctic, and relations with ice drift', JASA, submitted Simard, Gervaise, Kinda, Fortier & Mars (2012), 'Tenfold increase of arctic ocean noise from global warming alone', JASA, submitted
8 of dolphin signals Context State of the Art
9 of dolphin signals Context State of the Art
10 of dolphin signals Context State of the Art
11 Context State of the Art State of the Art : Segmentation / Instantaneous frequency law estimation I Instantaneous Frequency Law Estimation (I) Kalman ltering / Extended Kalman ltering [Mallawaarachchi2008] Optimal for Gaussian distributions Only Gaussian/Locally Gaussian distributions Particle ltering [Roch2011] Non-Gaussian distributions, nearly optimal Initialization of the seeds, mono-component Bayesian models : Maximum likelihood [Urazghildiiev & Clark 2004], Approximate maximum likelihood [Michel & Clergeot 1991] Sensitive to low SNR
12 Context State of the Art State of the Art : Segmentation / Instantaneous frequency law estimation II Instantaneous Frequency Law Estimation (II) Empirical Mode Decomposition (EMD) [Huang1996], Hilbert Spectrum Analysis, Teager-Kaiser Data-driven (no a priori model) Low SNR, close components Wigner-Ville distribution Interferences between components Higher-Order Ambiguity function (HAF) / Time-frequency-phase tracker [Ioana2010, Josso2009] Phase coherence / Time series Computational complexity
13 Context State of the Art State of the Art : Segmentation / Instantaneous frequency law estimation III Time-frequency plane Segmentation Morphological mathematics (closing) [Simard2010] Removal of spurious peaks, ecient segmentation Shape of the structuring element Edge detection [Gillespie2004] Simple method Impulsive noise, borders widening Hough transform [Pearson & Amblard 1996] Model Number of components, model
14 Context State of the Art State of the Art : Segmentation / Instantaneous frequency law estimation II Problems Methods operating on spectrogram and/or time series : sensitive to low local SNR Methods operating on binary spectrogram : sensitive to spurious peaks Computational complexity of the methods Solutions Use of ecient binary spectrogram Denoising of time series Identication of the regions of interest
15 Sommaire 1 Introduction Context State of the Art 2 3 Local Phase Analysis Application to real signals 4
16 Global methodology Time-frequency tracking methodology Time series Statistical segmentation of the time-frequency regions of interest (ROI) 1. exhibiting higher power than their neighbors 2. Detection of the time-frequency regions of interest Time-frequency tracking of the structures in signals
17 Detection of the time-frequency regions of interest I Step 1 : 1 Binary hypothesis test on spectrogram S x [t,k] : { H bin 0 : S x [t,k] = S n [t,k] ; H bin 1 : S x [t,k] = S sig+n[t,k] (1) 2 Noise model p(s x H bin 0 ) : χ2 distribution with 2 degrees of freedom 3 Estimation : Minimal statistics (small coecients = noise) 4 Decision criterion : Neyman-Pearson (choice of the p FA ) 5 Output : set of detected bins
18 Scheme of the methodology : time-frequency bin detection
19 Scheme of the methodology : time-frequency bin detection
20 Scheme of the methodology : time-frequency bin detection
21 Scheme of the methodology : time-frequency bin detection
22 Scheme of the methodology : time-frequency bin detection
23 Figure : Spectrogram thresholding, p FA = 10 5
24 Figure : Spectrogram thresholding, p FA = 0.005
25 Figure : Spectrogram thresholding, p FA = 0.1
26 Issues Lack of connectedness of detected components : missed detections, channel fading, sources directivity, etc. False detections (noise)
27 Detection of the time-frequency regions of interest II Step 2 : Detection of cells hosting signal 1 Starting from step 1 (binary spectrogram) 2 Partitioning of the binary spectrogram in cells (of xed size A) 3 Counting of the number Σ x of detections in cells 4 Hypothesis : large Σ x cell hosting signal 5 Binary hypothesis test on regions : { H cell 0 : Σ x = Σ FA ; H cell 1 : Σ x = Σ sig+fa (2) 6 False alarm model : p(σ x H cell 0 ) Binomial law B(A, p 0 ) 7 Estimation : ˆp 0 that minimizes the Kullback-Leibler divergence between the histogram of the data p(σ x ) and the model B(A, ˆp 0 ) 8 Decision criterion : Neyman-Pearson
28 Scheme of the methodology : Cell detection
29 Scheme of the methodology : Cell detection
30 Scheme of the methodology : Cell detection
31 Scheme of the methodology : Cell detection
32 Scheme of the methodology : Cell detection
33 Scheme of the methodology : Cell detection
34 Figure : Spectrogram thresholding, p cell FA connected cells = 20 ms = 0.001, minimum duration of
35 Figure : Spectrogram thresholding, p cell FA connected cells = 20 ms = 0.001, minimum duration of
36 Figure : Spectrogram thresholding, p cell FA connected cells = 20 ms = 0.001, minimum duration of
37 Input parameters of the method 1. Neighborhood for noise estimation 2. Probability of false alarm for bin detection p bin FA 3. Partitioning of the binary spectrogram (size of cells A) 4. False alarm probability for cell detection p cell FA 5. Minimum duration of components (physical considerations)
38 Issue Final segmentation heavily inuenced by the choice of p bin for bin FA detection Optimal p bin FA? Adopted solution Try multiple p bin FA Keep the one maximizing the detection probability of (connected) regions
39 Multi-threshold methodology
40 Multi-threshold methodology
41 Multi-threshold methodology
42 Multi-threshold methodology
43 Multi-threshold methodology
44 Multi-threshold methodology
45 Multi-threshold methodology
46 Multi-threshold methodology
47 Multi-threshold methodology
48 Multi-threshold methodology
49 Multi-threshold methodology
50 Multi-threshold methodology
51 Multi-threshold methodology
52 on real signals
53 Output of last step : Set of time-frequency regions of interest Possible uses : Tracking on ecient binary spectrogram Denoising of time series : design of time-varying lters Sparse communication : sensor transmits 'useful' information only in this presentation : Denoising to guide a time-frequency-phase tracker operating on time series
54 Sommaire Local Phase Analysis Application to real signals 1 Introduction Context State of the Art 2 3 Local Phase Analysis Application to real signals 4
55 Local Phase Analysis Application to real signals Time-frequency-phase tracking methodology Principle of the Local Phase Analysis Local polynomial modeling of the phase Extraction of the waveform Methodology [Ioana2010, Josso2009] 3rd Order polynomial modeling of the phase s(t) = A exp( j k=3 k=0 a kt k ) Multiple Estimation of the phase via Product High Order Ambiguity Function (PHAF) Design of time-frequency lters around the phase estimates and ltering Fusion of the local waveforms via maximization of the correlation
56 Local Phase Analysis Application to real signals Results of the methodology applied to real signals
57 Sommaire 1 Introduction Context State of the Art 2 3 Local Phase Analysis Application to real signals 4
58 Results Ecient Statistical segmentation Few input parameters Handles large databases (fast) Perspectives Choice of A? Shape of the partitioning grid?
59 Thank you, any questions?
Signal Detection. Outline. Detection Theory. Example Applications of Detection Theory
Outline Signal Detection M. Sami Fadali Professor of lectrical ngineering University of Nevada, Reno Hypothesis testing. Neyman-Pearson (NP) detector for a known signal in white Gaussian noise (WGN). Matched
More informationDistributed Detection Systems. Hamidreza Ahmadi
Channel Estimation Error in Distributed Detection Systems Hamidreza Ahmadi Outline Detection Theory Neyman-Pearson Method Classical l Distributed ib t Detection ti Fusion and local sensor rules Channel
More informationMIMO CHANNEL CAPACITY
MIMO CHANNEL CAPACITY Ochi Laboratory Nguyen Dang Khoa (D1) 1 Contents Introduction Review of information theory Fixed MIMO channel Fading MIMO channel Summary and Conclusions 2 1. Introduction The use
More informationRadar Systems Engineering Lecture 6 Detection of Signals in Noise
Radar Systems Engineering Lecture 6 Detection of Signals in Noise Dr. Robert M. O Donnell Guest Lecturer Radar Systems Course 1 Detection 1/1/010 Block Diagram of Radar System Target Radar Cross Section
More informationExploiting A Constellation of Narrowband RF Sensors to Detect and Track Moving Targets
Exploiting A Constellation of Narrowband RF Sensors to Detect and Track Moving Targets Chris Kreucher a, J. Webster Stayman b, Ben Shapo a, and Mark Stuff c a Integrity Applications Incorporated 900 Victors
More informationLecture 8: Signal Detection and Noise Assumption
ECE 83 Fall Statistical Signal Processing instructor: R. Nowak, scribe: Feng Ju Lecture 8: Signal Detection and Noise Assumption Signal Detection : X = W H : X = S + W where W N(, σ I n n and S = [s, s,...,
More informationA Statistical Framework for Operational Infrasound Monitoring
A Statistical Framework for Operational Infrasound Monitoring Stephen J. Arrowsmith Rod W. Whitaker LA-UR 11-03040 The views expressed here do not necessarily reflect the views of the United States Government,
More informationAdvanced Signal Analysis Method to Evaluate the Laser Welding Quality
Advanced Signal Analysis Method to Evaluate the Laser Welding Quality Giuseppe D Angelo FIAT Research Center Process Research Dept. - 10043 Orbassano, Italy giuseppe.dangelo@crf.it 20 Novembre, 2010 General
More information5 Signal Design for Bandlimited Channels
225 5 Signal Design for Bandlimited Channels So far, we have not imposed any bandwidth constraints on the transmitted passband signal, or equivalently, on the transmitted baseband signal s b (t) I[k]g
More informationModelling, Extraction and Description of Intrinsic Cues of High Resolution Satellite Images: Independent Component Analysis based approaches
Modelling, Extraction and Description of Intrinsic Cues of High Resolution Satellite Images: Independent Component Analysis based approaches PhD Thesis by Payam Birjandi Director: Prof. Mihai Datcu Problematic
More informationMultisensor Data Fusion and Applications
Multisensor Data Fusion and Applications Pramod K. Varshney Department of Electrical Engineering and Computer Science Syracuse University 121 Link Hall Syracuse, New York 13244 USA E-mail: varshney@syr.edu
More informationIntroduction to Detection Theory
Introduction to Detection Theory Reading: Ch. 3 in Kay-II. Notes by Prof. Don Johnson on detection theory, see http://www.ece.rice.edu/~dhj/courses/elec531/notes5.pdf. Ch. 10 in Wasserman. EE 527, Detection
More informationLog-Likelihood Ratio-based Relay Selection Algorithm in Wireless Network
Recent Advances in Electrical Engineering and Electronic Devices Log-Likelihood Ratio-based Relay Selection Algorithm in Wireless Network Ahmed El-Mahdy and Ahmed Walid Faculty of Information Engineering
More informationTHE problem of tracking multiple moving targets arises
728 IEEE TRANSACTIONS ON AUDIO, SPEECH, AND LANGUAGE PROCESSING, VOL. 16, NO. 4, MAY 2008 Binaural Tracking of Multiple Moving Sources Nicoleta Roman and DeLiang Wang, Fellow, IEEE Abstract This paper
More informationAgilent Creating Multi-tone Signals With the N7509A Waveform Generation Toolbox. Application Note
Agilent Creating Multi-tone Signals With the N7509A Waveform Generation Toolbox Application Note Introduction Of all the signal engines in the N7509A, the most complex is the multi-tone engine. This application
More informationAdvanced Signal Processing and Digital Noise Reduction
Advanced Signal Processing and Digital Noise Reduction Saeed V. Vaseghi Queen's University of Belfast UK WILEY HTEUBNER A Partnership between John Wiley & Sons and B. G. Teubner Publishers Chichester New
More informationSignal Detection C H A P T E R 14 14.1 SIGNAL DETECTION AS HYPOTHESIS TESTING
C H A P T E R 4 Signal Detection 4. SIGNAL DETECTION AS HYPOTHESIS TESTING In Chapter 3 we considered hypothesis testing in the context of random variables. The detector resulting in the minimum probability
More informationAN1200.04. Application Note: FCC Regulations for ISM Band Devices: 902-928 MHz. FCC Regulations for ISM Band Devices: 902-928 MHz
AN1200.04 Application Note: FCC Regulations for ISM Band Devices: Copyright Semtech 2006 1 of 15 www.semtech.com 1 Table of Contents 1 Table of Contents...2 1.1 Index of Figures...2 1.2 Index of Tables...2
More informationDetection of Magnetic Anomaly Using Total Field Magnetometer
Detection of Magnetic Anomaly Using Total Field Magnetometer J.Sefati.Markiyeh 1, M.R.Moniri 2, A.R.Monajati 3 MSc, Dept. of Communications, Engineering Collage, Yadegar- e- Imam Khomeini (RAH), Islamic
More informationResearch Article Time-Frequency Analysis of Horizontal Vibration for Vehicle-Track System Based on Hilbert-Huang Transform
Hindawi Publishing Corporation Advances in Mechanical Engineering Volume 3, Article ID 954, 5 pages http://dx.doi.org/.55/3/954 Research Article Time-Frequency Analysis of Horizontal Vibration for Vehicle-Track
More informationTime Domain and Frequency Domain Techniques For Multi Shaker Time Waveform Replication
Time Domain and Frequency Domain Techniques For Multi Shaker Time Waveform Replication Thomas Reilly Data Physics Corporation 1741 Technology Drive, Suite 260 San Jose, CA 95110 (408) 216-8440 This paper
More informationOnline Filtering for Radar Detection of Meteors
1, Gustavo O. Alves 1, José M. Seixas 1, Fernando Marroquim 2, Cristina S. Vianna 2, Helio Takai 3 1 Signal Processing Laboratory, COPPE/Poli, Federal University of Rio de Janeiro, Brazil. 2 Physics Institute,
More informationSTUDY OF MUTUAL INFORMATION IN PERCEPTUAL CODING WITH APPLICATION FOR LOW BIT-RATE COMPRESSION
STUDY OF MUTUAL INFORMATION IN PERCEPTUAL CODING WITH APPLICATION FOR LOW BIT-RATE COMPRESSION Adiel Ben-Shalom, Michael Werman School of Computer Science Hebrew University Jerusalem, Israel. {chopin,werman}@cs.huji.ac.il
More informationLogging of RF Power Measurements
Logging of RF Power Measurements By Orwill Hawkins Logging of measurement data is critical for effective trend, drift and Exploring the use of RF event analysis of various processes. For RF power measurements,
More informationStructural Health Monitoring Tools (SHMTools)
Structural Health Monitoring Tools (SHMTools) Parameter Specifications LANL/UCSD Engineering Institute LA-CC-14-046 c Copyright 2014, Los Alamos National Security, LLC All rights reserved. May 30, 2014
More informationNonlinear Signal Analysis: Time-Frequency Perspectives
TECHNICAL NOTES Nonlinear Signal Analysis: Time-Frequency Perspectives T. Kijewski-Correa 1 and A. Kareem 2 Abstract: Recently, there has been growing utilization of time-frequency transformations for
More informationSong Characteristics of Different Baleen Whales : A New Approach to Sound Analysis. Pranab Kumar Dhar, Jong-Myon Kim
Song Characteristics of Different Baleen Whales : A New Approach to Sound Analysis Pranab Kumar Dhar, Jong-Myon Kim 90 > Abstract This paper presents the characteristics of different baleen whale songs
More informationSpectrum and Power Measurements Using the E6474A Wireless Network Optimization Platform
Application Note Spectrum and Power Measurements Using the E6474A Wireless Network Optimization Platform By: Richard Komar Introduction With the rapid development of wireless technologies, it has become
More informationProbability and Random Variables. Generation of random variables (r.v.)
Probability and Random Variables Method for generating random variables with a specified probability distribution function. Gaussian And Markov Processes Characterization of Stationary Random Process Linearly
More informationIMO ANY OTHER BUSINESS. Shipping noise and marine mammals. Submitted by the United States
INTERNATIONAL MARITIME ORGANIZATION E IMO MARINE ENVIRONMENT PROTECTION COMMITTEE 57th session Agenda item 20 MEPC 57/INF.4 17 December 2007 ENGLISH ONLY ANY OTHER BUSINESS Shipping noise and marine mammals
More informationINTERNATIONAL TELECOMMUNICATION UNION $!4! #/--5.)#!4)/. /6%2 4(% 4%,%0(/.%.%47/2+
INTERNATIONAL TELECOMMUNICATION UNION )454 6 TER TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU $!4! #/--5.)#!4)/. /6%2 4(% 4%,%(/.%.%47/2+ ")43 %2 3%#/.$ -/$%- 34!.$!2$):%$ &/2 53% ). 4(% '%.%2!, 37)4#(%$
More informationTracking in flussi video 3D. Ing. Samuele Salti
Seminari XXIII ciclo Tracking in flussi video 3D Ing. Tutors: Prof. Tullio Salmon Cinotti Prof. Luigi Di Stefano The Tracking problem Detection Object model, Track initiation, Track termination, Tracking
More informationGSM frequency planning
GSM frequency planning Band : 890-915 and 935-960 MHz Channel spacing: 200 khz (but signal bandwidth = 400 khz) Absolute Radio Frequency Channel Number (ARFCN) lower band: upper band: F l (n) = 890.2 +
More informationAudio Engineering Society. Convention Paper. Presented at the 129th Convention 2010 November 4 7 San Francisco, CA, USA
Audio Engineering Society Convention Paper Presented at the 129th Convention 2010 November 4 7 San Francisco, CA, USA The papers at this Convention have been selected on the basis of a submitted abstract
More informationPractical Tour of Visual tracking. David Fleet and Allan Jepson January, 2006
Practical Tour of Visual tracking David Fleet and Allan Jepson January, 2006 Designing a Visual Tracker: What is the state? pose and motion (position, velocity, acceleration, ) shape (size, deformation,
More informationUnderwater Acoustic Communications Performance Modeling in Support of Ad Hoc Network Design
Underwater Acoustic Communications Performance Modeling in Support of Ad Hoc Network Design Warren L. J. Fox and Payman Arabshahi Applied Physics Laboratory University of Washington 113 N.E. th St. Seattle,
More informationUse Data Budgets to Manage Large Acoustic Datasets
Use Data Budgets to Manage Large Acoustic Datasets Introduction Efforts to understand the health of the ocean have increased significantly in the recent past. These efforts involve among other things,
More informationHow To Use A High Definition Oscilloscope
PRELIMINARY High Definition Oscilloscopes HDO4000 and HDO6000 Key Features 12-bit ADC resolution, up to 15-bit with enhanced resolution 200 MHz, 350 MHz, 500 MHz, 1 GHz bandwidths Long Memory up to 250
More information67 Detection: Determining the Number of Sources
Williams, D.B. Detection: Determining the Number of Sources Digital Signal Processing Handbook Ed. Vijay K. Madisetti and Douglas B. Williams Boca Raton: CRC Press LLC, 999 c 999byCRCPressLLC 67 Detection:
More informationIntroduction to ROOT and data analysis
Introduction to ROOT and data analysis What is ROOT? Widely used in the online/offline data analyses in particle and nuclear physics Developed for the LHC experiments in CERN (root.cern.ch) Based on Object
More informationDigital Modulation. David Tipper. Department of Information Science and Telecommunications University of Pittsburgh. Typical Communication System
Digital Modulation David Tipper Associate Professor Department of Information Science and Telecommunications University of Pittsburgh http://www.tele.pitt.edu/tipper.html Typical Communication System Source
More informationConvolution. 1D Formula: 2D Formula: Example on the web: http://www.jhu.edu/~signals/convolve/
Basic Filters (7) Convolution/correlation/Linear filtering Gaussian filters Smoothing and noise reduction First derivatives of Gaussian Second derivative of Gaussian: Laplacian Oriented Gaussian filters
More informationMODULATION Systems (part 1)
Technologies and Services on Digital Broadcasting (8) MODULATION Systems (part ) "Technologies and Services of Digital Broadcasting" (in Japanese, ISBN4-339-62-2) is published by CORONA publishing co.,
More informationDetection of Transiting Planet Candidates in Kepler Mission Data
Detection of Transiting Planet Candidates in Kepler Mission Data Peter Tenenbaum For the Kepler Transiting Planet Search Team 2012-June-06 SAO STScI! The Kepler Mission A space-based photometer searching
More informationEECS 556 Image Processing W 09. Interpolation. Interpolation techniques B splines
EECS 556 Image Processing W 09 Interpolation Interpolation techniques B splines What is image processing? Image processing is the application of 2D signal processing methods to images Image representation
More informationThe Effect of Network Cabling on Bit Error Rate Performance. By Paul Kish NORDX/CDT
The Effect of Network Cabling on Bit Error Rate Performance By Paul Kish NORDX/CDT Table of Contents Introduction... 2 Probability of Causing Errors... 3 Noise Sources Contributing to Errors... 4 Bit Error
More informationInterference Analysis
Application Note Interference Analysis JD7105A Base Station Analyzer / JD7106A RF Analyzer Introduction This document presents an overview of signal interference in RF wireless networks as well as a brief
More informationEE4367 Telecom. Switching & Transmission. Prof. Murat Torlak
Path Loss Radio Wave Propagation The wireless radio channel puts fundamental limitations to the performance of wireless communications systems Radio channels are extremely random, and are not easily analyzed
More informationMulti-Carrier GSM with State of the Art ADC technology
Multi-Carrier GSM with State of the Art ADC technology Analog Devices, October 2002 revised August 29, 2005, May 1, 2006, May 10, 2006, November 30, 2006, June 19, 2007, October 3, 2007, November 12, 2007
More informationMidwest Symposium On Circuits And Systems, 2004, v. 2, p. II137-II140. Creative Commons: Attribution 3.0 Hong Kong License
Title Adaptive window selection and smoothing of Lomb periodogram for time-frequency analysis of time series Author(s) Chan, SC; Zhang, Z Citation Midwest Symposium On Circuits And Systems, 2004, v. 2,
More informationMUSIC-like Processing of Pulsed Continuous Wave Signals in Active Sonar Experiments
23rd European Signal Processing Conference EUSIPCO) MUSIC-like Processing of Pulsed Continuous Wave Signals in Active Sonar Experiments Hock Siong LIM hales Research and echnology, Singapore hales Solutions
More informationThe CUSUM algorithm a small review. Pierre Granjon
The CUSUM algorithm a small review Pierre Granjon June, 1 Contents 1 The CUSUM algorithm 1.1 Algorithm............................... 1.1.1 The problem......................... 1.1. The different steps......................
More informationSome Essential Statistics The Lure of Statistics
Some Essential Statistics The Lure of Statistics Data Mining Techniques, by M.J.A. Berry and G.S Linoff, 2004 Statistics vs. Data Mining..lie, damn lie, and statistics mining data to support preconceived
More informationVEHICLE TRACKING USING ACOUSTIC AND VIDEO SENSORS
VEHICLE TRACKING USING ACOUSTIC AND VIDEO SENSORS Aswin C Sankaranayanan, Qinfen Zheng, Rama Chellappa University of Maryland College Park, MD - 277 {aswch, qinfen, rama}@cfar.umd.edu Volkan Cevher, James
More informationA user friendly toolbox for exploratory data analysis of underwater sound
061215-064 1 A user friendly toolbox for exploratory data analysis of underwater sound Fernando J. Pires 1 and Victor Lobo 2, Member, IEEE Abstract The underwater acoustics research group at the Portuguese
More informationEnvironmental Effects On Phase Coherent Underwater Acoustic Communications: A Perspective From Several Experimental Measurements
Environmental Effects On Phase Coherent Underwater Acoustic Communications: A Perspective From Several Experimental Measurements T. C. Yang, Naval Research Lab., Washington DC 20375 Abstract. This paper
More information1. (Ungraded) A noiseless 2-kHz channel is sampled every 5 ms. What is the maximum data rate?
Homework 2 Solution Guidelines CSC 401, Fall, 2011 1. (Ungraded) A noiseless 2-kHz channel is sampled every 5 ms. What is the maximum data rate? 1. In this problem, the channel being sampled gives us the
More informationSECTION 2 TECHNICAL DESCRIPTION OF BPL SYSTEMS
SECTION 2 TECHNICAL DESCRIPTION OF SYSTEMS 2.1 INTRODUCTION Access equipment consists of injectors (also known as concentrators), repeaters, and extractors. injectors are tied to the backbone via fiber
More informationitesla Project Innovative Tools for Electrical System Security within Large Areas
itesla Project Innovative Tools for Electrical System Security within Large Areas Samir ISSAD RTE France samir.issad@rte-france.com PSCC 2014 Panel Session 22/08/2014 Advanced data-driven modeling techniques
More informationInstrumentation for Monitoring around Marine Renewable Energy Devices
Instrumentation for Monitoring around Marine Renewable Energy Devices 1 Introduction As marine renewable energy has developed, a set of consistent challenges has emerged following attempts to understand
More informationSynthesis Of Polarization Agile Interleaved Arrays Based On Linear And Planar ADS And DS.
Guidelines for Student Reports Synthesis Of Polarization Agile Interleaved Arrays Based On Linear And Planar ADS And DS. A. Shariful Abstract The design of large arrays for radar applications require the
More informationResearch on the UHF RFID Channel Coding Technology based on Simulink
Vol. 6, No. 7, 015 Research on the UHF RFID Channel Coding Technology based on Simulink Changzhi Wang Shanghai 0160, China Zhicai Shi* Shanghai 0160, China Dai Jian Shanghai 0160, China Li Meng Shanghai
More informationMetaMorph Software Basic Analysis Guide The use of measurements and journals
MetaMorph Software Basic Analysis Guide The use of measurements and journals Version 1.0.2 1 Section I: How Measure Functions Operate... 3 1. Selected images... 3 2. Thresholding... 3 3. Regions of interest...
More informationBuilding Design for Advanced Technology Instruments Sensitive to Acoustical Noise
Building Design for Advanced Technology Instruments Sensitive to Acoustic Noise Michael Gendreau Colin Gordon & Associates Presentation Outline! High technology research and manufacturing instruments respond
More informationMark and Elite series DSI. Sonar Operation manual
Mark and Elite series DSI Sonar Operation manual Copyright 2010 Navico All rights reserved. No part of this manual may be copied, reproduced, republished, transmitted or distributed for any purpose, without
More informationINTERNATIONAL TELECOMMUNICATION UNION
INTERNATIONAL TELECOMMUNICATION UNION )454 6 TER TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU $!4! #/--5.)#!4)/. /6%2 4(% 4%,%0(/.%.%47/2+ ")43 0%2 3%#/.$ $50,%8 -/$%- 53).' 4(% %#(/ #!.#%,,!4)/. 4%#(.)15%
More informationClustering & Visualization
Chapter 5 Clustering & Visualization Clustering in high-dimensional databases is an important problem and there are a number of different clustering paradigms which are applicable to high-dimensional data.
More information8. Cellular Systems. 1. Bell System Technical Journal, Vol. 58, no. 1, Jan 1979. 2. R. Steele, Mobile Communications, Pentech House, 1992.
8. Cellular Systems References 1. Bell System Technical Journal, Vol. 58, no. 1, Jan 1979. 2. R. Steele, Mobile Communications, Pentech House, 1992. 3. G. Calhoun, Digital Cellular Radio, Artech House,
More informationMessage-passing sequential detection of multiple change points in networks
Message-passing sequential detection of multiple change points in networks Long Nguyen, Arash Amini Ram Rajagopal University of Michigan Stanford University ISIT, Boston, July 2012 Nguyen/Amini/Rajagopal
More informationPHASE ESTIMATION ALGORITHM FOR FREQUENCY HOPPED BINARY PSK AND DPSK WAVEFORMS WITH SMALL NUMBER OF REFERENCE SYMBOLS
PHASE ESTIMATION ALGORITHM FOR FREQUENCY HOPPED BINARY PSK AND DPSK WAVEFORMS WITH SMALL NUM OF REFERENCE SYMBOLS Benjamin R. Wiederholt The MITRE Corporation Bedford, MA and Mario A. Blanco The MITRE
More information> plot(exp.btgpllm, main = "treed GP LLM,", proj = c(1)) > plot(exp.btgpllm, main = "treed GP LLM,", proj = c(2)) quantile diff (error)
> plot(exp.btgpllm, main = "treed GP LLM,", proj = c(1)) > plot(exp.btgpllm, main = "treed GP LLM,", proj = c(2)) 0.4 0.2 0.0 0.2 0.4 treed GP LLM, mean treed GP LLM, 0.00 0.05 0.10 0.15 0.20 x1 x1 0.4
More informationBildverarbeitung und Mustererkennung Image Processing and Pattern Recognition
Bildverarbeitung und Mustererkennung Image Processing and Pattern Recognition 1. Image Pre-Processing - Pixel Brightness Transformation - Geometric Transformation - Image Denoising 1 1. Image Pre-Processing
More informationCHAPTER 3 MODAL ANALYSIS OF A PRINTED CIRCUIT BOARD
45 CHAPTER 3 MODAL ANALYSIS OF A PRINTED CIRCUIT BOARD 3.1 INTRODUCTION This chapter describes the methodology for performing the modal analysis of a printed circuit board used in a hand held electronic
More informationTime and Frequency Domain Equalization
Time and Frequency Domain Equalization Presented By: Khaled Shawky Hassan Under Supervision of: Prof. Werner Henkel Introduction to Equalization Non-ideal analog-media such as telephone cables and radio
More informationTime series analysis of data from stress ECG
Communications to SIMAI Congress, ISSN 827-905, Vol. 3 (2009) DOI: 0.685/CSC09XXX Time series analysis of data from stress ECG Camillo Cammarota Dipartimento di Matematica La Sapienza Università di Roma,
More informationLTE PHY Fundamentals Roger Piqueras Jover
LTE PHY Fundamentals Roger Piqueras Jover DL Physical Channels - DL-SCH: The DownLink Shared CHannel is a channel used to transport down-link user data or Radio Resource Control (RRC) messages, as well
More informationNetwork Security A Decision and Game-Theoretic Approach
Network Security A Decision and Game-Theoretic Approach Tansu Alpcan Deutsche Telekom Laboratories, Technical University of Berlin, Germany and Tamer Ba ar University of Illinois at Urbana-Champaign, USA
More informationIntroduction to acoustic imaging
Introduction to acoustic imaging Contents 1 Propagation of acoustic waves 3 1.1 Wave types.......................................... 3 1.2 Mathematical formulation.................................. 4 1.3
More informationHow To Understand The Theory Of Time Division Duplexing
Multiple Access Techniques Dr. Francis LAU Dr. Francis CM Lau, Associate Professor, EIE, PolyU Content Introduction Frequency Division Multiple Access Time Division Multiple Access Code Division Multiple
More informationDigital Transmission of Analog Data: PCM and Delta Modulation
Digital Transmission of Analog Data: PCM and Delta Modulation Required reading: Garcia 3.3.2 and 3.3.3 CSE 323, Fall 200 Instructor: N. Vlajic Digital Transmission of Analog Data 2 Digitization process
More informationDepartment of Electrical and Computer Engineering Ben-Gurion University of the Negev. LAB 1 - Introduction to USRP
Department of Electrical and Computer Engineering Ben-Gurion University of the Negev LAB 1 - Introduction to USRP - 1-1 Introduction In this lab you will use software reconfigurable RF hardware from National
More informationCapacity Limits of MIMO Channels
Tutorial and 4G Systems Capacity Limits of MIMO Channels Markku Juntti Contents 1. Introduction. Review of information theory 3. Fixed MIMO channels 4. Fading MIMO channels 5. Summary and Conclusions References
More informationThis document is downloaded from DR-NTU, Nanyang Technological University Library, Singapore.
This document is downloaded from DR-NTU, Nanyang Technological University Library, Singapore. Title Transcription of polyphonic signals using fast filter bank( Accepted version ) Author(s) Foo, Say Wei;
More informationEnvironmental Remote Sensing GEOG 2021
Environmental Remote Sensing GEOG 2021 Lecture 4 Image classification 2 Purpose categorising data data abstraction / simplification data interpretation mapping for land cover mapping use land cover class
More informationPCM Encoding and Decoding:
PCM Encoding and Decoding: Aim: Introduction to PCM encoding and decoding. Introduction: PCM Encoding: The input to the PCM ENCODER module is an analog message. This must be constrained to a defined bandwidth
More informationActivitity (of a radioisotope): The number of nuclei in a sample undergoing radioactive decay in each second. It is commonly expressed in curies
Activitity (of a radioisotope): The number of nuclei in a sample undergoing radioactive decay in each second. It is commonly expressed in curies (Ci), where 1 Ci = 3.7x10 10 disintegrations per second.
More informationNetwork Traffic Characterization using Energy TF Distributions
Network Traffic Characterization using Energy TF Distributions Angelos K. Marnerides a.marnerides@comp.lancs.ac.uk Collaborators: David Hutchison - Lancaster University Dimitrios P. Pezaros - University
More informationImplementation of Digital Signal Processing: Some Background on GFSK Modulation
Implementation of Digital Signal Processing: Some Background on GFSK Modulation Sabih H. Gerez University of Twente, Department of Electrical Engineering s.h.gerez@utwente.nl Version 4 (February 7, 2013)
More informationMI Software. Innovation with Integrity. High Performance Image Analysis and Publication Tools. Preclinical Imaging
MI Software High Performance Image Analysis and Publication Tools Innovation with Integrity Preclinical Imaging Molecular Imaging Software Molecular Imaging (MI) Software provides high performance image
More informationData Mining. Cluster Analysis: Advanced Concepts and Algorithms
Data Mining Cluster Analysis: Advanced Concepts and Algorithms Tan,Steinbach, Kumar Introduction to Data Mining 4/18/2004 1 More Clustering Methods Prototype-based clustering Density-based clustering Graph-based
More informationJitter Measurements in Serial Data Signals
Jitter Measurements in Serial Data Signals Michael Schnecker, Product Manager LeCroy Corporation Introduction The increasing speed of serial data transmission systems places greater importance on measuring
More informationSpectrum Analysis How-To Guide
Spectrum Analysis How-To Guide MOTOROLA SOLUTIONS and the Stylized M Logo are registered in the US Patent & Trademark Office. Motorola Solutions, Inc. 2012. All rights reserved. Spectrum Analysis 3 Contents
More informationAPPLICATION NOTES: Dimming InGaN LED
APPLICATION NOTES: Dimming InGaN LED Introduction: Indium gallium nitride (InGaN, In x Ga 1-x N) is a semiconductor material made of a mixture of gallium nitride (GaN) and indium nitride (InN). Indium
More informationDevelopment, deployment and validation of an oceanographic virtual laboratory based on Grid computing
Development, deployment and validation of an oceanographic virtual laboratory based on Grid computing David Mera Pérez Santiago de Compostela, Feb. 15 th 2013 Index 1 Context and Motivation 2 Objectives
More informationTonal Detection in Noise: An Auditory Neuroscience Insight
Image: http://physics.ust.hk/dusw/ Tonal Detection in Noise: An Auditory Neuroscience Insight Buddhika Karunarathne 1 and Richard H.Y. So 1,2 1 Dept. of IELM, Hong Kong University of Science & Technology,
More informationFUZZY IMAGE PROCESSING APPLIED TO TIME SERIES ANALYSIS
4.3 FUZZY IMAGE PROCESSING APPLIED TO TIME SERIES ANALYSIS R. Andrew Weekley 1 *, Robert K. Goodrich 1,2, Larry B. Cornman 1 1 National Center for Atmospheric Research **,Boulder,CO 2 University of Colorado,
More informationRemote Sensing of Clouds from Polarization
Remote Sensing of Clouds from Polarization What polarization can tell us about clouds... and what not? J. Riedi Laboratoire d'optique Atmosphérique University of Science and Technology Lille / CNRS FRANCE
More informationThe STC for Event Analysis: Scalability Issues
The STC for Event Analysis: Scalability Issues Georg Fuchs Gennady Andrienko http://geoanalytics.net Events Something [significant] happened somewhere, sometime Analysis goal and domain dependent, e.g.
More informationHF Radar WERA Application for Ship Detection and Tracking
Science I Research I Evaluation Anna Dzvonkovskaya I Klaus-Werner Gurgel I Hermann Rohling I Thomas Schlick HF Radar WERA Application for Ship Detection and Tracking High-Frequency (HF) radars are operated
More informationEDM SOFTWARE ENGINEERING DATA MANAGEMENT SOFTWARE
EDM SOFTWARE ENGINEERING DATA MANAGEMENT SOFTWARE MODERN, UPATED INTERFACE WITH INTUITIVE LAYOUT DRAG & DROP SCREENS, GENERATE REPORTS WITH ONE CLICK, AND UPDATE SOFTWARE ONLINE ipad APP VERSION AVAILABLE
More information