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22 Sep 2014 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
yue

yue

rate

3
14 Jul 2014 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Khujasta

Khujasta

unable to install HOSA on MATLAB2012b..
can anybody help..i have followed all the steps in the read me text..but to no avail

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19 Jun 2014 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Tiffany

Tiffany

Anybody else having issues getting the 'Hosa Demo' to work? It tells me
'Undefined function 'choices' for input arguments of type 'char'. Granted, I can go into the folder and open any demo I need, but I'm not really sure what they all are.

Second question (and maybe I just need to read on this), but how does the window work? From the demo, it seemed he chose an arbitrary size? I'm looking to calculate the bi-spectrum. I'm used to making my own hanning window when I do a regular FFT; this appears to be different.

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28 Aug 2013 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
yangyang

yangyang

5
21 Jul 2013 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
zhongguo

zhongguo

very good

5
08 Dec 2012 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Damon Bradley

Damon Bradley

Also, to remove the annoyance of inexact case matches when you use the any of the HOSA functions, I'd recommend putting this line of code at the top of your script:

warning('off','MATLAB:dispatcher:InexactCaseMatch').

For some strange reason, all of the HOSA function file names are written in all caps.

3
13 Nov 2012 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Lyuboslav Petrov

Lyuboslav Petrov

Convert from upper to lower all files in both folder using this script:

files = dir;
for i = 3:length(files)
system(['REN ',lower(files(i).name),' ',lower(files(i).name)]);
end

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13 Nov 2012 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Lyuboslav Petrov

Lyuboslav Petrov

3
25 Sep 2012 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Wolfgang

Wolfgang

Hi,

i have tried as described in the readme.txt. Unfortunately all file names and extentions are in uppercase after extracting !

Because of that no chance to use anything (like hosaver or hosademo).

Please advice what to do.

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03 Jul 2012 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Russell

Russell

I have the HOSA pack working, but I run out of memory with the WIG2C function when using a array of 2500 rows and 1 column. Can the function not handle a array like this?

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07 Mar 2012 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
MIAO DU

MIAO DU

Hi,all, I tried to use the function bispecd.m on my data, but it always shows
??? Subscript indices must either be real positive integers or logicals.

Error in ==> BISPECD at 123
xseg = y(locseg);

How can I fix this problem?
Thanks.

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18 Jan 2012 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Keith Thornicroft

Keith Thornicroft

Hi All,

I can't seem to get the toolbox installed having followed the text file to the T. I am using MATLAB Student Version 7.12.0.635 (R2011a) with an additional wavelet toolbox. Any ideas? Does it even work for a student licence?

Cheers!

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19 Sep 2011 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Jered Wells

Jered Wells

For those who get an error due to the info.xml file: to fix the error in hosa\info.xlm, the line containing <area>matlab</area> should be changed to <type>matlab</type>. Now, to try HOSA...

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27 Apr 2011 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
XIAYANG xiayang

XIAYANG xiayang

It is good and helpful.

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22 Apr 2011 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
MD. TANJIMUDDIN

MD. TANJIMUDDIN

The installation seems to have worked incompletely. I get the following error:
>> HOSADEMO
??? Undefined function or method 'choices' for input arguments of type 'char'.
Error in ==> HOSADEMO at 68
choices('HoSatDemo', 'HOSA Demo', labels, callbacks, interruptible);
My Matlab cannot find the command/function "choices".
I have MATLAB Version 7.8.0.347 (R2009a)
Signal Processing Toolbox Version 6.11 (R2009a)
Can you please help me solve this?
Thanks
please tell me how to use these toolboxes.please reply on my email tanjii023@yahoo.com

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21 Apr 2011 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Evan

Evan

For those in need of choices.m

http://www.maths.lth.se/matstat/wafo/documentation/wafodoc/wafo/misc/choices.html

has the source code.

Create a new .m, paste in code, delete all code line numbers :)

5
06 Mar 2011 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
henry gorx

henry gorx

sorry, I was wrong. The comment was for other function (MATS).

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05 Mar 2011 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
henry gorx

henry gorx

Hi, I tested the function Bicorrelation(xV,tauV,flag), how I must to interpret the results? for example, bicV=-0.18738 and cumbicV=0.70683. Many thanks for your help.

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27 Jan 2011 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
leo

leo

it is grateful

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13 Jan 2011 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
wu

wu

File "choices.m" is lost. Is the problem of version of matlab, and mine is 7.1?

4
12 Jan 2011 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
wu

wu

great tool of researchers whose major is signal processing

4
07 Jan 2011 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
andrea ruju

andrea ruju

Why the window specification for frequency-domain smoothing is differetn in bispectrum and bicoherence estimation?

Hi, i'm a phd student in coastal oceanography. My e-mail is matumaloa@gmail.com

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04 Dec 2010 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
asandu asandu

asandu asandu

Help: why the bispectrum of the gaussian noise does not equal zero in HOSA
Hi :
I am a student from Wuhan, China. I have download the toolbox of HOSA. Thank you very much of your job. BUt I have met a problem in compute the bispectrum of the gaussian noise, because the result of it does not equal to zero. I can not find the solution of it. can you help me? and thanks.
The signal of gaussian noise is given by the commad 'rand'.
my e_mail: xhdu1981@yahoo.com.cn

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08 Nov 2010 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Sayan

Sayan

having errors please help
>> hosademo
??? Undefined function or method 'choices' for input arguments of type 'char'.

Error in ==> HOSADEMO at 68
choices('HoSatDemo', 'HOSA Demo', labels, callbacks, interruptible);

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02 Nov 2010 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
wang ?

wang ?

thank you

5
12 Oct 2010 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Rafael J.

Rafael J.

Great toolbox, but there are clearly some typos and errors. Capitalized filenames causes warnings (or the fact that they don't match the functions calls with respective to caps).

Also, why does bicoherx and bispecdx have three inputs when most people only have two inputs for a cross-bicoherence or cross-bispectrum analysis? Anyone figure this issue out? Which two inputs should we use? (eg x-x-y, x-y-x, etc)

4
19 May 2010 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Salai Selvam V

Salai Selvam V

Excellent!!!

5
18 May 2010 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Ali Ali

Ali Ali

Thanks alot. fantastic tool

5
06 Nov 2009 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
zamrud fathima

zamrud fathima

The installation seems to have worked incompletely. I get the following error:
>> HOSADEMO
??? Undefined function or method 'choices' for input arguments of type 'char'.
Error in ==> HOSADEMO
choices('HoSatDemo', 'HOSA Demo', labels, callbacks, interruptible);
My Matlab cannot find the command/function "choices".
Can you please help me solve this?
Thanks.
please send reply to my e-mail

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03 Nov 2009 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Rae

Rae

Is there a simple way to edit bicoher to normalize it such that it's giving the bounded (0-1) version rather than the current skewness version?

I can't access the Kim and Powers paper and if others have sucessfully done this, I'd love to know how!

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11 Aug 2009 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Paul

Paul

The installation seems to have worked incompletely. I get the following error:
>> HOSADEMO
??? Undefined function or method 'choices' for input arguments of type 'char'.
Error in ==> HOSADEMO at 68
choices('HoSatDemo', 'HOSA Demo', labels, callbacks, interruptible);
My Matlab cannot find the command/function "choices".
I have MATLAB Version 7.8.0.347 (R2009a)
Signal Processing Toolbox Version 6.11 (R2009a)
Can you please help me solve this?
Thanks,
Paul Axon, Sydney, Australia
paul.axon@thalesgroup.com.au

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11 Jun 2009 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
David Gagnon

David Gagnon

I meant to submit this post first...
(Both posts refer to BICOHER.m)

Beware that there are multiple ways to normalize the bispectrum, and they are all referred to as the "bicoherence." The formula that this m-file uses is NOT the one that bounds the bicoherence between 0 and 1. If you are looking for that one, check out Kim and Powers' 1979 paper "Digital Bispectral Analysis and Its Applications to Nonlinear Wave Interactions." They provide an explanation of how to code that version, and it has worked reasonably well for me.

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11 Jun 2009 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
David Gagnon

David Gagnon

By the way, "segsamp" (actually implemented as "nsamp") is the number of samples per segment, that is, the number of points in each chunk of data that you're throwing into the bicoherence. You can use datasets of any length, and the program will typically calculate fft's with a length that is a power of two and is greater than or equal to "segsamp." It does this by adding zeros to the data record. However, you can specify "nfft" to tell the program how many points you want the fft to use. If you set "segsamp" and "nfft" to be equal, then you can avoid zero-padding. Powers of two are calculated faster, but MATLAB can handle fft's of any length.

As for the frequency axis, "waxis" is based on the number of points that are used in the fft. As a result, "0.5" on the axis corresponds to the highest frequency that can be resolved with that number of points, also known as the Nyquist frequency. Exactly how you want to scale the axis will depend on the nature of your data.

On an unrelated note, the demo gives me errors, too.

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04 Jun 2009 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Rakesh

Rakesh

I have tried WIG2.m function on a times series on 28800 samples (288 sec signal sampled at 100Hz) but function doesnt seem to handle this big signal. However, I have also tried it on chunks of this signal but it takes forever to complete. Is it my computer or the program itself? any help?

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08 Apr 2009 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Gabriel Akira Schreiber

But, however, lowercase filenames would be a great improvement.

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08 Apr 2009 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Gabriel Akira Schreiber

This toolbox is greatly appreciated. Is this still developed/maintained?

5
27 Oct 2008 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Edwin Wu

Edwin Wu

Does anybody have the experience to use TDE.M? I encounter some problem when I use it as a way to estimate the time delay of 2 channels of signal. I would be so appreciated for your helps.My msn is wjr0529@gmail.com,it is also my E-mail.I would like to make friends with anyone of you.join me , share our knowledge and be brilliant together.

5
21 Oct 2008 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Bessie Bao

EEG

4
19 Oct 2008 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
elahe alavi

4
27 Aug 2008 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Yue ZHOU

To identify whether one time serial is norm-distribution

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04 Aug 2008 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Femi Osunnuyi

I've had some problems using the 'bicoher' function. With most industrial data sets, i obtain bicoherence values greater than 1, which in theory is not meant to be possible.
Any ideas?
Also is 'segasamp' meant to be square root of no. of data set (which must be even powers of 2 [4,16,64,256,1024], right?)?

3
28 Jul 2008 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Alex Yakubovich

Does anybody what the frequency units are in BICOHER and BISPECD? Some of the examples in the tutorial suggest it is in Hz, but that doesn't make sense given the plot I get with my signal.

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17 Jun 2008 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Guy Incognito

4
26 May 2008 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
jason yun

4
19 May 2008 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Kacimi Abderrahmane

4
01 May 2008 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Vinayak swarnkar

I downloaded it..but facing problem in running it. Even 'hosademo.m' dosent work...it gives error saying 'Undefined function or method 'choices' for input arguments of type 'char'.'. Can some please help in this.
Thanks you

4
26 Jan 2008 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
as as

4
04 Dec 2007 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
bahman abc

thx!

4
07 Nov 2007 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
Alhade Mohamed

hi

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11 Oct 2007 HOSA - Higher Order Spectral Analysis Toolbox Spectral and polyspectral analysis, and time-frequency distributions. Author: Ananthram Swami

Ananthram Swami

  • 1 file
  • 164 downloads
  • 4.49333
guang yang

it's good

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