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### Highlights from Empirical Mode Decomposition

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# Empirical Mode Decomposition

### Manuel Ortigueira (view profile)

11 Sep 2008 (Updated )

It decomposes a given signal into a set of intrinsic mode functions that are essentially AM/FM modul

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Description

The Empirical Mode Decomposition is a technique to decompose a given signal into a set of elemental signals called Intrinsic Mode Functions. The Empirical Mode Decomposition is the base of the so-called “Hilbert-Huang Transform” that comprises also a Hilbert Spectral Analysis and an instantaneous frequency computation. A modified improved algorithm for the Empirical Mode Decomposition is implemented. The output is a set of AM/FM modulated signal.
To use it, it is enough to input the signal, two resolutions in dB (~50) and a step value <=1 (normally =1).

Required Products Signal Processing Toolbox
Spline Toolbox
MATLAB release MATLAB 6.5 (R13)
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Comments and Ratings (29)
06 Jul 2016 Justin Igwe

### Justin Igwe (view profile)

Hi I got the error

"Debug: Max-Min sequence mismatch.
Debug: Max-Min reverse sequence mismatch."
How can i solve this please?

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13 Jun 2016 Hz

### Hz (view profile)

It really works！

11 Jun 2016 easy adin

### easy adin (view profile)

hi i'm stil at the basics of matlab but i need to implement this algorithm in a project.
based on my knowledge 3 inputs are required from the user which are the input signal, 2 resolution in dB(~50) and a step value <=1(normally =1). my question is what code should be entered based on speech processing to get the modulation frequency and modulation level.

i'll appreciate any help
thanks

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26 Feb 2016 kavindu zoysa

### kavindu zoysa (view profile)

28 Sep 2015 GANGISHETTY AKHILESH

### GANGISHETTY AKHILESH (view profile)

can i know what does it mean by qResol, qResid, qAlfa ?

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20 Sep 2015 Suja Alex

### Suja Alex (view profile)

Error using rParabEmd__L (line 34) rParabEmd__L: Use with 4 inputs.

I'm getting this error.How can I correct this?Pls help me

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13 Aug 2015 Tim

### Tim (view profile)

I assume that the Spline Toolbox is no longer required, as it no longer exists. Presumably 'spline()' in base Matlab is sufficient ?
Some example data would be a nice addition to this submission (eg from the original paper).

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06 Mar 2015 Daemian

### Daemian (view profile)

Hello,

How do i run this files? if im not wrong X value is able to get from audioread wav file. But how do i get the other 4 value ?

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23 Feb 2015 sarika

### sarika (view profile)

Hello Syahrul Fithry
I think you get that error because ,the file 'rParabEmd_L' is not in the current direcctory. To avoid that error you copy this function in your current directory and run.

14 Feb 2015 Syahrul Fithry

### Syahrul Fithry (view profile)

Dear all.

I had used this function on a row input signal, v, i.e v= [ 1 2 3 4 5]'

so i call the function by typing rParabEmd_L(v,50,50,1)

However, this error message appears

??? Undefined function or method 'rParabEmd_L' for input arguments of type
'double'.

I am pleased if anyone of the experts here could advice me on this problem.

Tq

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13 Oct 2014 Predrag

### Predrag (view profile)

02 Oct 2014 Javad Pourhosein

### Javad Pourhosein (view profile)

11 Jun 2014 francesco

### francesco (view profile)

05 Jan 2014 amrit

### amrit (view profile)

08 Dec 2013 Fan D.Chen

### Fan D.Chen (view profile)

This program is very helpful to me, so I have to say, thank you

30 Oct 2013 Matt

Thanks a lot !

30 Oct 2013 Matt

### Matt (view profile)

15 Aug 2013 giusep

### giusep (view profile)

I also have this error:
"Debug: Max-Min sequence mismatch.
Debug: Max-Min reverse sequence mismatch."

what does it mean?

24 Jul 2013 savan

### savan (view profile)

hi sir i get error when doing emd on a signal
please send me code of emd

24 Jun 2013 Ashley

### Ashley (view profile)

Hi I get the error

"Debug: Max-Min sequence mismatch.
Debug: Max-Min reverse sequence mismatch."

What does this mean?

I am putting in the arguments:

rParabEmd__L(v, 50, 50, 1)

where v = [1,6,2,7,3,8,5,9,5,9,1,3,2,4,3,5,4,6,5,7,6,8,7,9,2,3]

Do you know what I am doing wrong? thanks

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06 Dec 2012 Charles Nelatury

### Charles Nelatury (view profile)

Beautiful! Thanks

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05 Dec 2012 Charles Nelatury

### Charles Nelatury (view profile)

14 Sep 2012 King Maple

### King Maple (view profile)

GOOD

08 Jun 2012 Di Geng

### Di Geng (view profile)

21 Nov 2011 Saurabh Singh

### Saurabh Singh (view profile)

Was looking for it. Thanks Manuel. :)

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03 Mar 2011 fireburning ?

### fireburning ? (view profile)

Thanks for sharing.

03 Mar 2011 G.B. Yang

### G.B. Yang (view profile)

good

03 Aug 2010 Raymond Chan

### Raymond Chan (view profile)

Its based on the paper "On the HHT, its problems, and some solutions".

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28 May 2010 Jose Ercolino

### Jose Ercolino (view profile)

It was tagged as "companion software" by the author, but no link to a book or other package was provided. What is the book or other package to which this is the companion?

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