I have a problem in understanding of EMD algorithm (Empirical Mode Decomposition).

07 July 2013 1 2K Report

The number of local maximums and minimums of the signal is not equal so I can't sum them. I mean ' h1 =(emax+emin)/2'.

And the other problem arises when I try to subtract the signal 'h1' from the original signal 'X'. because the dimension of two signals are not equal.

what should I do to make the dimensions equal?

Ramesh Babu.N

For more details about EMD refer to the article:

Huang et al., "The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis", Proc. R. Soc. Lond. 454(1998) 903-995.

Badges
Science topic

More Arash Khassetarash's questions See All

How much strain occur in the Achilles tendon during running?

According to strain-stress diagram of the Achilles tendon, one can consider one linear and one nonlinear part before rupture. It is important to see which of these two area should be considered in...

03 April 2015 8,634 11 View

How do you perform delta variation in this equation?

07 August 2014 10,020 5 View

Can anyone suggest a bandpass filter?

I'm trying to develop a code in order to filter data using a bandpass filter. The passed frequency changes in every iteration. Can anyone suggest a function of frequency so that I could multiply...

02 March 2014 4,286 2 View

What is the difference between wavelet transform and Hilbert-Huang transform?

If we want to have the frequency vs. time, or frequency content of a signal, we can use wavelet transform or Hilbert-Huang transform. What are the differences and advantages or disadvantages of...

02 March 2014 3,650 9 View

How can I perform a continuous wavelet transform?

I've written a code for continuous wavelet transform using a Cauchy type wavelet function. But the intensity of wavelets aren't true. they are rippling in time. I used multiplication in the...

31 December 2013 664 6 View

How to build DOSLoader boot disk in XPC simulink?

I have built a DOSLoader boot disk for XPC Simulink. But when I put it in Target PC it can't boot with this disk. does anyone know what's the problem?

11 December 2013 6,696 0 View

Measuring vertical ground reaction force in running - can anyone help?

I want to measure vertical ground reaction force during running. Can any one suggest me a (cheap) sensor to do that?

10 November 2013 4,386 9 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Anyone plz suggest relevant topic for research in image processing+Deep learning.?

I have selected brain tumor images ...but now found that already lots of research done n this topic.

03 March 2021 5,774 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View