# Autocorrelation Matlab ppts

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purpose of the lecture - Lamont-Doherty Earth Observatory |

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purpose of the lecture - Lamont-Doherty Earth Observatory |

autocorrelation in MatLab. MatLab computes the autocorrelation with just one command. Important Relation #1autocorrelation is the convolution of a time series with its time-reversed self.

http://www.ldeo.columbia.edu/users/menke/edawm/eda_lectures/lec18.pptx

Date added: October 13, 2012 - Views: 55

Correlation of Discrete-Time Signals - Iowa State University

Correlation of Discrete-Time Signals Transmitted Signal, x(n) Reflected Signal, y(n) = x(n-D) + w(n) 0 T Cross-Correlation Cross-correlation of x(n) and y(n) is a sequence, rxy(l) Reversing the order, ryx(l) => Similarity to Convolution No folding (time-reversal) In Matlab: Conv(x,fliplr(y ...

http://home.eng.iastate.edu/~julied/classes/ee524/LectureNotes/Correlation%20of%20Discrete-Time%20Signals.ppt

Date added: October 24, 2011 - Views: 84

purpose of the lecture - Lamont-Doherty Earth Observatory |

Environmental Data Analysis with MatLab. Lecture 17: Covariance and Autocorrelation. Today’s lecture introduces a new subject concerning correlations within time series.

http://www.ldeo.columbia.edu/users/menke/edawm/eda_lectures/lec17.pptx

Date added: October 24, 2012 - Views: 10

Introduction to MATLAB - Miami University

Autocorrelation. Examples of optical autocorrelation. Measurement of optical spectra and of very short-duration light pulses produced by lasers. Analysis of dynamic light scattering data to determine particle size distributions

http://blogs.miamioh.edu/researchcomputing/files/2013/10/signal_processing.pptx

Date added: April 11, 2014 - Views: 10

GOLD’S FREQUENCY HOPPING PREDICTION EXAMPLE

AUTOCORRELATION OF PN SEQUENCES A very important property of PN sequences is the periodic auto correlation ... By letting bk = 2ck -1, this translates 0 -1 and 1 1 This is a useful MatLab conversion necessary for many MatLab computations: Note: In GF(2) arithmetic, multiplication ...

http://cecs.wright.edu/~jstephen/2007Lecture04.ppt

Date added: September 13, 2013 - Views: 7

The Sinusoidal Waveform - YILDIZ

... Autocorrelation by Polynomial Multiplication Method Graph of the autocorrelation function Slide 16 MATLAB Implementation Covariance and Correlation Correlation and Covariance Slide 19 Slide 20 Slide 21 MATLAB Implementation Autocorrelation and Crosscorrelation MATLAB ...

http://www.yildiz.edu.tr/~naydin/BaS/lectures/PPT/BaS_04b.ppt

Date added: July 27, 2013 - Views: 10

Introduction to Applied Spatial Econometrics - DIMETIC

Introduction to Applied Spatial Econometrics Attila Varga DIMETIC Pécs, July 3, 2009 Prerequisites Basic statistics (statistical testing) Basic econometrics (Ordinary Least Squares and Maximum Likelihood estimations, autocorrelation) EU Patent applications 2002 Outline Introduction The nature ...

http://dimetic.dime-eu.org/dimetic_files/Spatial%20econometrics%20introduction.ppt

Date added: September 13, 2011 - Views: 55

MATLAB tutorial - Weizmann Institute of Science

MATLAB tutorial online version Methods in Computational ... Relative refractory period: Autocorrelation function Weak coupling with homogeneous input Weak coupling with noisy tuned input Strong coupling with noisy tuned input Strong coupling with nonspecific input Ring neural ...

http://www.weizmann.ac.il/home/bndmitri/MatlabTutorialOnline/MATLABtutorial_online.ppt

Date added: October 15, 2011 - Views: 53

Correlation and Auto-Correlation of Signals - Home - John Sebeson

... the “full” cross-correlation. The process is performed in MATLAB by the command xcorr xcorr is equivalent to ... -correlation of a noisy signal provides greater S/N in detecting dominant frequency components compared to a normal FFT Autocorrelation has detected a periodicity of 9 to ...

http://jsebeson.webs.com/ECET%20430/KS%20Chapter%208%20Correlation%20Auto%20Correlation.ppt

Date added: September 9, 2012 - Views: 61

No Slide Title

... Average Magnitude Difference Method (AMDF) Autocorrelation Method (AC) Average Magnitude Difference Method (AMDF) Average magnitude ... MATLAB Project Pseduocode read in speech signal from binary file create arrays to hold pitch data read in pitch data from .fx ASCII text file place ...

http://my.fit.edu/~vkepuska/ece5525/Projects/Fall2004/Ira%20Weissberger/iraproject.ppt

Date added: May 26, 2012 - Views: 13

Tutorial: Making “Movie” slides using Matlab and Power Point

Tutorial: Making “Movie” slides using Matlab and Power Point Chet Lo University of Utah 7-7-03 Tutorial: Making “Movie” slides using Matlab and Power Point Chet Lo University of Utah 7-7-03 × ∫ Autocorrelation Function function NDRmovie() axis([-5 25 1 4000]); set(gca,'nextplot ...

http://ece.utah.edu/~cfurse/Tutorials/matlab/Matlab%20Movies.ppt

Date added: October 15, 2011 - Views: 30

Speech Processing Project Linear Predictive coding using ...

Models Implemented In MATLAB LPC Background The speech signal is filtered to no more than one half the system sampling frequency and then A/D conversion is performed. ... where represent the autocorrelation of the sequence defined as Auto-correlation where is a pxp autocorrelation matrix, ...

http://my.fit.edu/~vkepuska/ece5525/Projects/Fall2005/Osama%20Saraireh/Speech%20Processing%20Project.ppt

Date added: May 28, 2012 - Views: 51

Introduction to Matlab - Πολυτεχνείο Κρήτης

Title: Introduction to Matlab Author: doikon Last modified by: doikon Created Date: 2/9/2002 3:11:20 PM Document presentation format: On-screen Show

http://www.telecom.tuc.gr/analogcourse/docs/tutorial_notes/05_random_signals.ppt

Date added: March 2, 2012 - Views: 36

Voice-Activated RC Car - Course Website Directory

... Short-Time Autocorrelation Coefficients Rn(k) simple and fast, quick and ... Linear Prediction Overview Linear Time-Warping Distance Measure Word Selection Transmitter/Receiver and Car Matlab Simulation Testing Autocorrelation Results LPC Results Simulation Summary PowerPoint ...

http://courses.engr.illinois.edu/ece445/projects/fall2000/project3_presentation.ppt

Date added: December 2, 2013 - Views: 7

No Slide Title

... process? AR(1) PROCESS Autocorrelation Using, Recursively, we thus have for an AR(1) process, For a long series, the sampling distribution for r is approximately Gaussian ... p=0.002 for a one-sided test Autocorrelation Matlab Examples * Recall from last time…

http://ww4.msu.ac.zw/elearning/material/1159340235More%20on%20Regression.ppt

Date added: June 8, 2013 - Views: 5

Time Series Basics - Brandeis University

... Partial ACF Information criteria Forecast Autocorrelation Partial Autocorrelation Correlation between y(t ... normal distribution for large T Moving average MA and ARMA Numerical estimation procedures Built into many packages Matlab econometrics toolbox Residual Diagnostics Get model ...

http://people.brandeis.edu/~blebaron/classes/fin250a/lectures/tsbasics.ppt

Date added: August 10, 2013 - Views: 3

ECOMMS Lecture - Rowan University

... F Wiener-Khintchine Theorem Matlab Demo: autocorr.m Thermal (Johnson) Noise 0 0.5 1 1.5 2 2.5 3 x 10 12 0 0.5 1 1.5 2 x 10 -21 PSD of thermal noise frequency, Hz PSD, W/Hz Matlab script: ... (PSD) Autocorrelation Function Thermal (Johnson) ...

http://users.rowan.edu/~shreek/spring11/ecomms/lectures/lecture14a.ppt

Date added: December 7, 2013 - Views: 10

KPC-Toolbox Demonstration - William & Mary Computer Science

... MATLAB toolbox Workload Traces Markovian Arrival Process (MAP) ... determine n? Which trace descriptors are important? Literature: Moments of interval times, lag-1 autocorrelation But, for long range dependent traces? Need temporal dependence descriptors MAP Parameterization ...

http://www.cs.wm.edu/MAPQN/kpcdemo_fourthversion.ppt

Date added: May 3, 2013 - Views: 11

Digital Representation of Audio Information

The Matlab command pwelch() implements this method. Example: Filter white noise through a band-pass filter and compute the PSD. ... Show autocorrelation for white noise (filter input) and colored noise (filter output).

http://www.engr.uky.edu/~donohue/ee513/unit3.ppt

Date added: November 23, 2011 - Views: 54

Lecture 23: 1. Review of MRI noise processes 2. Cross ...

Review of covariance Autocorrelation ... Definition of Stability FIR filter Design by Windowing Simply truncate IIR filter Rectangular Window: Matlab: fdatool filter() in Matlab Exporting Filter Coefficients Extension to 2D Radial Transform H(k)-> (H(k1)2+H(k2)2) ...

http://www.medphysics.wisc.edu/~fains/html/Lectures/Quiz3_Review_FilterDesign.ppt

Date added: January 4, 2014 - Views: 1

Digital Representation of Audio Information

For Matlab’s FFT: FFT(X) is the discrete Fourier transform (DFT) of vector X. For matrices, ... [h,fq] = freqz(b,a,2*plen,fs); plot(fq,abs(h).^2,col(2)) hold off % Label figure xlabel('Hertz') ylabel('PDS') Autocorrelation Function As a measure of how quickly a signal changes on average, ...

http://www.engr.uky.edu/~donohue/ee513/DSPanalysis.ppt

Date added: January 28, 2012 - Views: 27

Introduction to Spatial Data Analysis in the Social Sciences

Spatial Regression Models ESDA and OLS diagnostics tell you that there is spatial autocorrelation Identify the source (LM tests will help ... Matlab routines Linear spatial regression; weights construction; Bayesian estimation; spatial probit/tobit models Software Packages (2 ...

http://www.personal.psu.edu/faculty/f/k/fkw/rsoc597/RS597%20-%2006.ppt

Date added: October 30, 2011 - Views: 78

LPC Speech Coder on the TI C6x DSP - UCLA Electrical Engineering

... pulls out the rug from under you Design Flow Consolidate Matlab reference into a single function Matlab rewritten C ... precision for low energy segments Temporary values stored in <10.30> Take advantage of extended precision Modified autocorrelation used <16.0> All whole numbers Fixed ...

http://www.ee.ucla.edu/~ingrid/ee213a/speech/EE213A-LPConC6x.ppt

Date added: October 1, 2011 - Views: 31

Matched Filter & PAM - University of Texas at Austin

... in Fourier domain is convolution in time domain Conjugation in Fourier domain is reversal and conjugation in time Autocorrelation of x(t) Maximum value at Rx ... Erfc[x] in Mathematica erfc(x) in Matlab 2-PAM d -d 4-PAM Constellations with decision boundaries d -d 3 d -3 d two ...

http://signal.ece.utexas.edu/~arslan/courses/realtime/lectures/13_Matched_Filtering/lecture13.ppt

Date added: August 29, 2011 - Views: 92

Pitch estimation for music signal processing

The frequency of x is 1/dt=(8/3) KHz Ch4. pitch, v3.c * Matlab %Ver2, MACF (Modified Autocorrelation function)using center clipping clear %select one of the followings %real_data=1 %1 or 0 real_data=0 if real_data==1 %use real sound %[x,fs]=wavread ('d:\0music\sounds\violin3.wav'); [orginal_x,fs ...

http://www.cse.cuhk.edu.hk/%7Ekhwong/www2/cmsc5707/5707_4_pitch.ppt

Date added: November 21, 2013 - Views: 8

No Slide Title

... with no return NO Correlation! Back to the Example: with return Good Correlation! Inner Product in Matlab Row vector Row vector conjugate, transpose Take two signals of ... where The term is called the “autocorrelation of s[n]”. This characterizes the pulse. Example: a square ...

http://faculty.nps.edu/rcristi/EO3404/C-Filters/slides/3-Matched-Filter.ppt

Date added: June 26, 2013 - Views: 7

Regression Analysis. - Ning

Autocorrelation can also be arise in laboratory experiments ,because of the sequence in which experimental runs are done or drift in instruments calibration . Randomization reduce the possibility of Auto correlated result.

http://api.ning.com/files/y4oPHcT54JQzlymAM1-zDDX-XLXnnPPX83u34Qodg4qYKpgzm*1LVJoD6BS1bF0WRRzM1s0AL4IcZazl3D5mnhot02uLI1Zo/multipleregression.ppt

Date added: November 2, 2012 - Views: 34

BME 712 Biomedical Image Processing - UNC/NCSU Joint ...

All real: B-1 = BT Separable, fast Used in compression, but can filter also. Discrete Cosine Transform Matlab offers dct2 and idct2 ... Principal Components Consider a random process that yields an image n and its autocorrelation Rnn Find the eigenvalue decomposition of Rnn Karhunen-Loeve ...

http://www.bme.unc.edu/~lalush/BME712/Transform2.ppt

Date added: December 21, 2013 - Views: 6

Time Series Basics - Brandeis University

Outline Variance ratios Autocorrelation sampling theory Types of Random Walks e(t) ... Random Walk Test Test: VR(N)=1 Two problems Distribution of VR? Which N? Distribution of VR(N): Asymptotic Matlab Examples vratio vratiotest nmcvratio bsvratio Longer Time Horizons Weekly Lo and Mackinlay ...

http://people.brandeis.edu/~blebaron/classes/fin250fold/lectures/varratio.ppt

Date added: June 4, 2014 - Views: 1

Laboratory 1 - Chinese University of Hong Kong

Convert to digital , find autocorrelation coeff. ... The signal is s0,s1,..,s511 Example: j=time lag Auto-correlation coefficients rj={ r0, r1,.., rn=8, …} are: Matlab example 1 a=[1 3 9 3 2 3 8 3 2 ], r=(xcorr(a)) ,round (r) R=r ...

http://www.cse.cuhk.edu.hk/~khwong/www2/ceng4480/lab1_pitch_tuner.ppt

Date added: May 18, 2013 - Views: 8

FPGA Programming for Real Time Analysis of Lidar

I-Q Demodulation (Autocorrelation) Results. FPGA Programming for Real Time Analysis of Lidar Systems by: ... High PRF makes real time analysis using only a data acquisition card and software such as MATLAB nearly impossible, because the time between pulses is very small.

http://crest.ccny.cuny.edu/symposium2013/docs/Abdelazim_Sameh.pptx

Date added: July 12, 2013 - Views: 7

PROJECT GOAL - University of Illinois at Urbana–Champaign

... Multiple ways of comparing speech Autocorrelation Coefficients : easy, ... then performing the recognition Serial Port Connection Accomplishments Matlab simulations of the recorded samples evaluated and performed as expected, ...

http://courses.engr.illinois.edu/ece445/projects/fall2000/project13_presentation.ppt

Date added: May 2, 2013 - Views: 9

No Slide Title

... is characterized in the frequency domain by its power spectrum which is the fourier transform of the autocorrelation function of the random process.that is, Conversely, the ... Answer Matlab: M-file ip_02_06 Example 2.7 Compute the autocorrelation function Ry(t) ...

http://hit.ac.il/staff/commEng/Uri_Mahlab/simindigialcomm2.ppt

Date added: September 12, 2012 - Views: 9

Simulation of Communication Systems - Intel

... essential for MC simulations Requires RNG generation methods from a wide variety of distributions and with arbitrary autocorrelation (PSD). RNG Important ... Opnet Time driven simulations: SPW, Cossap, Simulink/Matlab Algorithm simulations: TI CodeComposer Packets, messages ...

http://www.intel.com/education/highered/Wireless/lectures/L09-PHY_simulations.ppt

Date added: May 2, 2013 - Views: 13

Emotion Detection Using Speech Signal Features and Data ...

MATLAB animation. The spectrum of frame 25. Example of pitch detection. MATLAB animation. No clear harmonics in unvoiced frame (fricatives, noise, etc.) ... Autocorrelation shows peaks at multiples of pitch period. Problem. Sensitive to peak amplitude changes -> choose a higher-order peak ...

http://www.ece.rochester.edu/~zduan/teaching/ece492/lectures/Single%20Pitch%20Detection_ECE492_v2.pptx

Date added: October 13, 2013 - Views: 6

Chapter 17 - Simple Linear Regression and Correlation

We can often detect autocorrelation by graphing the residuals against the time periods. If a pattern emerges, it is likely that the independence requirement is violated.

http://wweb.uta.edu/insyopma/baker/STATISTICS/Keller7/Keller%20PP%20slides-7/Chapter17.ppt

Date added: August 25, 2011 - Views: 228

Презентация PowerPoint - unn.ru

... dB, RMS, Power) Filter bank Log Area Ratio (Kelly-Lochbaum) Autocorrelation (Durbin recursion, Leroux-Guegen) Lattice (Burg) Reflection ... (HMM) N-gram model Viterbi decoding Baum-Welch training IPP vs. MATLAB Frequency Scale Conversion Mel scale Equivalent rectangular Bandwidths ...

http://www.itlab.unn.ru/file.php?id=172

Date added: September 10, 2012 - Views: 13

Slide 1

... Hessian determinant K. Grauman, B. Leibe Ixx Iyy Ixy In Matlab: Hessian Detector – Responses [Beaudet78] Effect: Responses mainly on corners and ... [Harris88] Second moment matrix (autocorrelation matrix) Image derivatives gx(sD), gy(sD), 2. Square of derivatives Iy 1. Image ...

http://www.cs.illinois.edu/~dhoiem/courses/vision_spring10/lectures/Lecture13%20-%20Overview+Interest%20Points.ppt

Date added: June 5, 2012 - Views: 17

ECOMMS Lecture - Rowan University

... F Wiener-Khintchine Theorem Matlab Demo: autocorr.m 0 0.5 1 1.5 2 2.5 3 x 10 12 0 0.5 1 1.5 2 x 10 -21 PSD of thermal noise frequency, Hz PSD, W/Hz Matlab script: ... Power Spectral Density (PSD) Autocorrelation Function Thermal ...

http://users.rowan.edu/~shreek/spring05/ecomms/lectures/lecture12a.ppt

Date added: May 8, 2012 - Views: 13

Query by Singing (CBMR)

... 8 sec Wave format : PCM, 11025Hz, 8bits, Mono Environment Celeron 450 with 128Mb RAM under Matlab 5.3 Database 493 midi files ... Music retrieval by singing/humming Related Work Query by humming by Ghias,Loga and Chamberlin in 1995 Autocorrelation pitch detection 183 songs in ...

Date added: October 10, 2013 - Views: 5

Spectral Analysis - Universiti Tenaga Nasional

The Wiener-Khintchine theorem says that Ryy( f ) is the DFT of the autocorrelation function ryy(t) of y. The value Ryy(0) = ryy(0) gives the average ... MATLAB provides the function fftshift to rearrange the outputs of fft and convert to a 0-centered spectrum. 3 - * FFT Example >> Fs ...

http://metalab.uniten.edu.my/~farrukh/DSP/DSP%203%20-%20Spectral%20Analysis.ppt

Date added: April 30, 2012 - Views: 68

Taguchi Method: - confex.com

H-yarn Program written in Matlab code, using the least square method is used for estimating these parameters. ... Autocorrelation coefficient of first order R(1) ...

http://ncc.confex.com/ncc/responses/2007/281.ppt

Date added: June 25, 2013 - Views: 10

PowerPoint Presentation

MATLAB code that processes a stack of 2D images (3D image processing) Questions? Reference: Graph of autocorrelation function on slide 5 was taken from a paper. By Douglas MacDonald, Martin Hunter, Kyle Quinn, and Irene Georgakoudi.

Date added: September 4, 2013 - Views: 4

Visual Object Recognition Tutorial - University of Missouri

... Hessian determinant * K. Grauman, B. Leibe Ixx Iyy Ixy In Matlab: * Hessian Detector – Responses [Beaudet78] Effect: Responses mainly on corners and ... [Harris88] Second moment matrix (autocorrelation matrix) Image derivatives gx(sD), gy(sD), 2. Square of derivatives Iy 1 ...

http://www.cs.missouri.edu/~duanye/cs8690/lecture-notes/4-local_features.ppt

Date added: March 25, 2013 - Views: 13

PowerPoint Presentation

Autocorrelation of Sine Wave Biased Autocorrelation Unbiased Autocorrelation A variant of the autocorrelation process is to use “unbiased” autocorrelation This is useful for periodic signals ... Here ACF in the Matlab model means Auto Correlation Function Divide output by decreasing number ...

http://www-dsp.elet.polimi.it/Marcon/TI_DSP/Chapter%2016%20Noise%20Gate.ppt

Date added: January 17, 2014 - Views: 3

Il toolbox Snag per la simulazione e l'analisi dei dati ...

... a Matlab toolbox and some ideas for gravitational wave data analysis S. Frasca, E. Majorana, ... (in \analysis): % % analysis\gd_acorfft - fft autocorrelation or autocovariance % analysis\gd_crcorfft - fft cross-correlation or cross-covariance % analysis\atan3 - atan3 ...

http://grwavsf.roma1.infn.it/snag/snag2.ppt

Date added: August 1, 2013 - Views: 3

From Econometrics to Spatial Econometrics

Oral Cancer Death Rate Software ArcGIS GeoDA R SAS Stata Matlab SpaceStat CrimeStat Review of Applications of SE Four most cited ... defines spatial process (spatial autocorrelation), spatial structure, or spatial interaction across study regions. A common way to define a weighting ...

Date added: June 21, 2013 - Views: 4

Slide 1

Use MATLAB to find Speckle Contrast (K) to ensure accuracy Create brightfield and speckle videos of an anesthetized, 6 day old zebrafish in a well. Use videos to calculate speckle contrast and autocorrelation function, thus finding relative velocity of fish blood flow. ...

Date added: May 9, 2013 - Views: 3

The “zoo” of Deconvolution Algorithms

fc = /D From the autocorrelation theorem the MTF is the autocorrelation of the complex wavefront at the pupil. Normalized Spatial Frequency MTF Binary Stars Fourier Modulus Two delta functions produce a set of “fringes”, the ...

http://web.cecs.pdx.edu/~mperkows/CLASS_573/Kumar_2007/decon_lecture.ppt

Date added: October 12, 2011 - Views: 66

Modulation, Demodulation and Coding Course

Imp: 5. You will be required to do a Design Project using MatLab to simulate your design and demonstrate it’s performance in the presence of noise and Inter-Symbol ... Lecture 1 * Autocorrelation Autocorrelation of an energy signal Autocorrelation of a power signal For a ...

http://doctord.dyndns.org/Courses/BEI/EE352/Lectures/Lecture1a.ppt

Date added: May 22, 2013 - Views: 36