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Environmental Data Analysis with MatLab. Lecture 18: Cross-correlation. Today’s lecture expands the idea of correlations within time series to correlations between time series.
Date added: October 13, 2012 - Views: 59
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 ...
Date added: October 24, 2011 - Views: 85
MATLAB Signal Processing Toolbox. Greg Reese, Ph.D. Research Computing Support Group. Academic Technology Services. Miami University. October 2013. ... Linear and circular convolution, autocorrelation, autocovariance, cross-correlation, cross-covariance.
Date added: April 11, 2014 - Views: 17
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 ...
Date added: September 13, 2013 - Views: 9
Environmental Data Analysis with MatLab. Lecture 17: Covariance and Autocorrelation. Today’s lecture introduces a new subject concerning correlations within time series.
Date added: October 24, 2012 - Views: 12
A signal could be sinusoidal (e.g., a cosine), ... .0000 -0.0000 -0.0000 -0.0000 1.0000 -0.5878 -0.0566 -0.0078 -0.1544 -0.0078 -0.5878 1.0000 * MATLAB Implementation Autocorrelation and Crosscorrelation The crosscorrelation and autocorrelation operations are both performed with the ...
Date added: July 27, 2013 - Views: 15
Correlation and Auto ... All possible k shifts would produce a vector of values, the “full” cross-correlation. The process is performed in MATLAB by ... -correlation of a noisy signal provides greater S/N in detecting dominant frequency components compared to a normal FFT Autocorrelation has ...
Date added: September 9, 2012 - Views: 66
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 ...
Date added: October 15, 2011 - Views: 54
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 ...
Date added: September 13, 2011 - Views: 60
... 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 ...
Date added: May 26, 2012 - Views: 13
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 ...
Date added: October 15, 2011 - Views: 32
Speech Processing Project Linear Predictive coding using Voice excited Vocoder ECE 5525 Osama Saraireh Fall 2005 Dr. Veton Kepuska 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.
Date added: May 28, 2012 - Views: 52
Time Series Basics Fin250f ... features are independent of time Weak or Covariance Stationary Variances and covariances independent of time Autocorrelation White Noise ... normal distribution for large T Moving average MA and ARMA Numerical estimation procedures Built into many packages Matlab ...
Date added: August 10, 2013 - Views: 3
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) ...
Date added: January 4, 2014 - Views: 1
Correlation Functions Autocorrelation function Autocovariance function Crosscorrelation function Crosscovariance function ... Bernoulli Process (cont.) Mean: Variance: Autocorrelation: ( are assumed independent) MATLAB Bernoulli Simulation MATLAB’s rand( ) function is useful for such ...
Date added: July 23, 2013 - Views: 11
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).
Date added: November 23, 2011 - Views: 56
... 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 ...
Date added: August 2, 2014 - Views: 1
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
Date added: March 2, 2012 - Views: 38
Introduction to Spatial Data Analysis in the Social Sciences RSOC597A: Special Topics in Methods/Statistics Kathy Brasier Penn State University June 14, 2005
Date added: October 30, 2011 - Views: 79
Correlation and Regression Correlation. ‘Correlation’ is a statistical tool which measure the strength of linear relationship between two variables.
Date added: November 2, 2012 - Views: 35
... 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 ...
Date added: May 3, 2013 - Views: 12
... 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) ...
Date added: December 7, 2013 - Views: 12
Title: Pitch estimation for music signal processing Author: khwong Last modified by: khwong Created Date: 9/26/2011 7:15:24 AM Document presentation format
Date added: November 21, 2013 - Views: 8
... 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(0) Rx(t) is ... with variance s2 Estimate noise power spectrum in Matlab Matched Filter Derivation Noise Signal ...
Date added: August 29, 2011 - Views: 93
Back to the Example: with return Good Correlation! Inner Product in Matlab Row vector Row vector conjugate, transpose Take two ... if Matched Filter Take the expression ... where The term is called the “autocorrelation of s[n]”. This characterizes the pulse. Example: a square ...
Date added: June 26, 2013 - Views: 9
Simple Linear Regression and Correlation Linear Regression Analysis… Regression analysis is used to predict the value of one variable (the dependent variable) on the basis of other variables (the independent variables).
Date added: August 25, 2011 - Views: 232
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 ...
Date added: June 4, 2014 - Views: 3
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.
Date added: July 12, 2013 - Views: 8
... Quantization Error (Noise) Analysis Power spectrum for signal x(t) is Autocorrelation of random signal n(t) For zero-mean Gaussian n(t) with variance s2 Estimate noise power spectrum in Matlab Quantization Error (Noise) ...
Date added: June 1, 2013 - Views: 8
Laboratory 1 A simple Pitch tuner Objectives To lean how to interface analogue signals to digital systems To learn how to process audio signals in embedded systems.
Date added: May 18, 2013 - Views: 9
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, ...
Date added: January 28, 2012 - Views: 30
BME 712 Biomedical Image Processing Image Transformations Basis function transforms Outline Projects Programming Assignment 3 Basis transforms Properties Examples Discrete cosine transform Hadamard transform Haar transform Karhunen-Loeve transform Fourier Basis Image from B(fx,fy) = d(fx = 11 ...
Date added: December 21, 2013 - Views: 7
... 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 ...
Date added: October 1, 2011 - Views: 33
... 3rd I’m engaged in classification of modulation within student’s scientific activity Content Why is analysis of ... Statistic analysis – Is engaged in identification basic statistical quantity (mean value, scatter, autocorrelation ... All of these pictures I created in MATLAB ...
Date added: December 12, 2013 - Views: 16
What is single pitch detection? Why is pitch detection important? Pitch detection for speech. Time domain: autocorrelation, YIN. Frequency domain: harmonic summation method
Date added: October 13, 2013 - Views: 7
... 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) ...
Date added: September 12, 2012 - Views: 11
Project Goal Real-World Applications Theoretical Background Project ... Multiple ways of comparing speech Autocorrelation Coefficients : ... then performing the recognition Serial Port Connection Accomplishments Matlab simulations of the recorded samples evaluated and performed as ...
Date added: May 2, 2013 - Views: 10
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: 6
Autocorrelation') 3 - * Nonparametric Methods Nonparametric methods estimate the PSD directly from the signal ... (Fs-1)/length(Y0); >> P0 = ... Y0.*conj(Y0)... /length(Y0); >> plot(f0,P0) Symmetric about Fs/2 = 50 Spectral Analysis MATLAB for Signal Processing Spectral Analysis of Signals ...
Date added: April 30, 2012 - Views: 70
Simulation of Communication Systems ... essential for MC simulations Requires RNG generation methods from a wide variety of distributions and with arbitrary autocorrelation (PSD). RNG Important ... SPW, Cossap, Simulink/Matlab Algorithm simulations: TI CodeComposer Packets ...
Date added: May 2, 2013 - Views: 14
Quantization 8 - * Outline ... in Fourier domain is convolution in time domain Conjugation in Fourier domain is reversal & conjugation in time Autocorrelation of x(t) Maximum value (when it exists) is ... with variance s2 Estimate noise power spectrum in Matlab N = 16384; % finite no. of samples ...
Date added: September 19, 2011 - Views: 70
... 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 ...
Date added: March 25, 2013 - Views: 15
... 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 ...
Date added: May 8, 2012 - Views: 15
소리 검출 및 조작 MATLAB 과제 윤태웅 2007711392 박환민 2001313808 정명진 2001310328 실험 방법 Matlab의 xcorr()함수를 이용한 한 Frame의 Autocorrelation을 구하고 이것의 주기성을 관찰하였다. 1 frame의 크기는 256 Sample을 사용 Sample 길이는 ...
Date added: August 2, 2014 - Views: 1
Noise Supression Techniques for Speech Enhancement Using Adaptive Filtering Derek Shiell 03/09/2006 ECE 463: Project Presentation ... Define U the KLT transform as the eigenvectors of Ry the autocorrelation matrix of the noisy signal.
Date added: October 2, 2012 - Views: 28
Deconvolution Deconvolved Speckle Adaptive Optics Julian C. Christou Center for Adaptive Optics Outline Why Deconvolution? ... fc = /D From the autocorrelation theorem the MTF is the autocorrelation of the complex wavefront at the pupil.
Date added: October 12, 2011 - Views: 68
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
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 ...
Date added: January 17, 2014 - Views: 5
... dB, RMS, Power) Filter bank Log Area Ratio (Kelly-Lochbaum) Autocorrelation (Durbin recursion, Leroux-Guegen) Lattice (Burg ... (AR, Power spectra) Speech enhancement Martin spectral subtraction algorithm IPP vs. MATLAB (continue) LPC analysis and transforms Area ratios ...
Date added: September 10, 2012 - Views: 14