Rank: 281 based on 394 downloads (last 30 days) and 6 files submitted
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Santhana Raj

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Personal Profile:

https://sites.google.com/site/santhanarajarunachalam/

Professional Interests:
Signal Processing, Condition Monitoring of rotating equipments

 

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Files Posted by Santhana View all
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(last 30 days)
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03 May 2013 Screenshot AR filter + Minimum Entropy Deconvolution for Bearing Fault Diagnosis AR Filter by YuleWalker method combined with Minimum Entropy Deconvolution for bearing fault diagnos Author: Santhana Raj ar, filtermed, minimum entropy decon..., kurtosis, bearing fault diagnos..., vibration 39 2
  • 4.0
4.0 | 1 rating
18 Jul 2012 Screenshot Envelope Detction for Signal Analysis Computes the envelope of the signal by two methods: 1.LPF method 2.Hilbert Transform Author: Santhana Raj image processing, signal processing, envelope detection, bearing fault, amplitude modulation, signal analysis 162 4
  • 4.0
4.0 | 4 ratings
25 Jun 2012 Screenshot Discret Wavelet Transform got Daub2 Implements the Daubechies 2 DWT w/o using the inbuilt function Author: Santhana Raj signal processing, wavelet, daubechies, db2, dwt, discrete wavelet tran... 54 3
  • 5.0
5.0 | 4 ratings
22 Jun 2012 Screenshot Harmonic Wavelet For Wavelet transform Computes the Harmonic wavelet and outputs in the form similar to other wavelets Author: Santhana Raj signal processing, image processing, wavelet transform, harmonic wavelet 29 1
  • 5.0
5.0 | 2 ratings
19 Jun 2012 Screenshot IMF for Bearing Fault Diagnosis performs HHT on signal & IMF is plotted for Condition monitoring of vibration based bearing fault Author: Santhana Raj signal processing, bearing fault, condition monitoring, hilbert huang transfo..., intrinsic mode functi... 83 8
  • 5.0
5.0 | 5 ratings
Comments and Ratings by Santhana View all
Updated File Comments Rating
17 Apr 2014 Morphological Analysis for Bearing Fault detection Applies the selected morphological operators on the signal. Author: Santhana Raj

@Anwesh
Ya, You are correct.
Fs- Sampling Frequency

N- No of points in FFT, preferably of 2^n format, less than the number of values in input

fault_tym=inverse of fault frequency

X- Fs*fault_tym. Can be proven that the result will be better if the number of structural elements taken is a multiple of Fs*fault_tym. Which multiple provides better result is being compared in this code. You can chk the ieee paper for further details...

20 Feb 2014 Morphological Analysis for Bearing Fault detection Applies the selected morphological operators on the signal. Author: Santhana Raj

@Hemo Khalifa,

The program works fine for me. I cant directly provide a example/demo here. But I have already given how to call the function and the meaning of the variable in the comment portion of the file. If you want to understand the code, You can check my page, https://sites.google.com/site/santhanarajarunachalam/my-research/condition-monitoring/morphological-operators/morphological-operators-results

If you are facing any specific error in executing the code, Drop me a mail with the error, I would be glad to help.

16 Dec 2013 Mesh a plate with hole Meshing a plate with hole at center of given radius Author: Siva Srinivas Kolukula

23 Aug 2013 IMF for Bearing Fault Diagnosis performs HHT on signal & IMF is plotted for Condition monitoring of vibration based bearing fault Author: Santhana Raj

@Harish

You can check the book by "Hilbert Huang Transform and its applications" by N.E.Huang and S.P.Shen.

04 Jul 2013 Discret Wavelet Transform got Daub2 Implements the Daubechies 2 DWT w/o using the inbuilt function Author: Santhana Raj

@ahmed

ya sure you can.
But the effectiveness of noise removal depends on the noise type and signal type

Comments and Ratings on Santhana's Files View all
Updated File Comment by Comments Rating
22 Apr 2014 Morphological Analysis for Bearing Fault detection Applies the selected morphological operators on the signal. Author: Santhana Raj Anwesh

17 Apr 2014 Morphological Analysis for Bearing Fault detection Applies the selected morphological operators on the signal. Author: Santhana Raj Raj, Santhana

@Anwesh
Ya, You are correct.
Fs- Sampling Frequency

N- No of points in FFT, preferably of 2^n format, less than the number of values in input

fault_tym=inverse of fault frequency

X- Fs*fault_tym. Can be proven that the result will be better if the number of structural elements taken is a multiple of Fs*fault_tym. Which multiple provides better result is being compared in this code. You can chk the ieee paper for further details...

17 Apr 2014 Morphological Analysis for Bearing Fault detection Applies the selected morphological operators on the signal. Author: Santhana Raj Anwesh

The programs works well for me
can you describe the terms Fs , N i.e N= 4*2048 , X in the program.I figured out Fs to be sampling frequency

08 Mar 2014 Envelope Detction for Signal Analysis Computes the envelope of the signal by two methods: 1.LPF method 2.Hilbert Transform Author: Santhana Raj Ruiyan

good, can be used normally.thanks very much.

20 Feb 2014 Morphological Analysis for Bearing Fault detection Applies the selected morphological operators on the signal. Author: Santhana Raj Raj, Santhana

@Hemo Khalifa,

The program works fine for me. I cant directly provide a example/demo here. But I have already given how to call the function and the meaning of the variable in the comment portion of the file. If you want to understand the code, You can check my page, https://sites.google.com/site/santhanarajarunachalam/my-research/condition-monitoring/morphological-operators/morphological-operators-results

If you are facing any specific error in executing the code, Drop me a mail with the error, I would be glad to help.

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