Rank: 926 based on 75 downloads (last 30 days) and 8 files submitted
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Evan Ruzanski

E-mail
Company/University
Radar and Communications Group, Colorado State University
Lat/Long
40.57722091674805, -105.07861328125

Personal Profile:

Radar and Communications Group
Colorado State University
Fort Collins, Colorado 80523

Professional Interests:
Radar signal processing, nowcasting, atmospheric science

 

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Files Posted by Evan View all
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17 Mar 2011 Screenshot Radially averaged power spectrum of 2D real-valued matrix Computes and plots radially averaged PSD of 2-D real matrix with a given spatial resolution. Author: Evan Ruzanski fourier analysis, power spectral densit..., radial average, weather radar, image processing, power spectrum 21 2
01 Mar 2011 Fast Possion equation solver Solves the Poisson equation using Successive Overrelaxation (SOR) with Chebyshev acceleration. Author: Evan Ruzanski numerical analysis, partial differential ..., pde, poisson equation, successive overrelaxa..., sor 15 0
14 Apr 2009 A/B comparison listening test script This script M file automates and manages a double-blind AB comparison test. Author: Evan Ruzanski subjective analysis, listening test, speech processing, audio processing 7 0
14 Apr 2009 Mean Opinion Score (MOS) test script Script to automate ITU 5-grade Mean Opinion Score (MOS) test. Author: Evan Ruzanski mean opinion score, mos, listening test, subjective analysis, audio processing, speech processing 12 0
09 Mar 2005 Screenshot formant_loc.m Finds formant locations of acoutsic tube model given area and length parameters. Author: Evan Ruzanski audio processing, video processing, digital speech proces..., speech processing, tube model, forman 2 0
Comments and Ratings on Evan's Files View all
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16 Aug 2011 Radially averaged power spectrum of 2D real-valued matrix Computes and plots radially averaged PSD of 2-D real matrix with a given spatial resolution. Author: Evan Ruzanski Protik, Angjelina

for r = 0:floor(dimMax/2)
    i{r + 1} = find(rho == r);
end
Pf = zeros(1, floor(dimMax/2)+1);
for r = 0:floor(dimMax/2)
    Pf(1, r + 1) = nanmean( imgfp( i{r+1} ) );
end
there is some bug in this part
06 Apr 2011 Radially averaged power spectrum of 2D real-valued matrix Computes and plots radially averaged PSD of 2-D real matrix with a given spatial resolution. Author: Evan Ruzanski Stefano

Hi, I found this to be faster, hope it helps, S.
%% code for fast radial averaging:
[xx,yy]=meshgrid(-1000:1000,-1000:1000);
rr=sqrt(xx.^2+yy.^2);
ri=floor(rr/100)+1;
N=numel(ri);
[~,~,iir]=unique(ri); %find unique values
Qt =sparse(1:N,iir,ones(N,1));

tic;Pf=(rr(:).'*Qt).';toc %radial average
08 Nov 2007 db_nc_audio_recon.m Demonstrates perfect reconstruction filter bank operation for audio processing. Author: Evan Ruzanski MANOHAR, MARATHE
07 Mar 2007 Comprehensive DSP Toolbox v1.0 General digital signal processing toolbox for MATLAB containing 20 useful functions. Author: Evan Ruzanski belkhir, lahcen

èlectronique
12 Jan 2007 Comprehensive DSP Toolbox v1.0 General digital signal processing toolbox for MATLAB containing 20 useful functions. Author: Evan Ruzanski goswami, arup

it is very usefull
Top Tags Applied by Evan
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audio processing, video processing, speech processing, listening test, listening tests
Files Tagged by Evan View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
17 Mar 2011 Screenshot Radially averaged power spectrum of 2D real-valued matrix Computes and plots radially averaged PSD of 2-D real matrix with a given spatial resolution. Author: Evan Ruzanski fourier analysis, power spectral densit..., radial average, weather radar, image processing, power spectrum 21 2
01 Mar 2011 Fast Possion equation solver Solves the Poisson equation using Successive Overrelaxation (SOR) with Chebyshev acceleration. Author: Evan Ruzanski numerical analysis, partial differential ..., pde, poisson equation, successive overrelaxa..., sor 15 0
14 Apr 2009 A/B comparison listening test script This script M file automates and manages a double-blind AB comparison test. Author: Evan Ruzanski subjective analysis, listening test, speech processing, audio processing 7 0
14 Apr 2009 Mean Opinion Score (MOS) test script Script to automate ITU 5-grade Mean Opinion Score (MOS) test. Author: Evan Ruzanski mean opinion score, mos, listening test, subjective analysis, audio processing, speech processing 12 0
09 Mar 2005 Screenshot formant_loc.m Finds formant locations of acoutsic tube model given area and length parameters. Author: Evan Ruzanski audio processing, video processing, digital speech proces..., speech processing, tube model, forman 2 0

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