Adaptive Noise Cancellation

[ErnieP]

Hi Everyone -
I'm wondering if anyone has any idea where I can find a Labview
implementation of a simple Least-Mean-Square algorithm - I would like to
use it in an adaptive noise cancellation .vi for removing 60Hz power
line hum from ECG signals. Actually, what would be even better would be
a .vi which accomplishes this already. Any suggestions or references
would be appreciated!

Thanks,
Ernie

[Labviewguru]

Ernie,

Two basic choices:

If you have the advanced analysis package, you can use something in there.

Also, there is another toolset of LabVIEW that contains filters, though I don't recall the name of the package offhand. Check the catalog or the website. This package may contain what you are looking for.

If you don't have either package, I really don't know what to say, besides good luck with finding and implementing an algorithm.

[drval]

The Signal Processing Toolkit includes both Joint Time-Frequency Analysis tools as well as Wavelet tools that will do what you are wanting to do. I have already implemented similar processes in a "real-time" EEG system that monitors, analyzes and then runs multimedia events based on triggering algorithms.

I hope this helps.

[bekateen]

Hello drval.
If you are referring to an electroencephalography VI, would you be willing to share it with others? I would like to measure simple EEGs using LabVIEW in my Biology class, but I don't know how to create a VI that adequately processes the signal.

Thanks

[drval]

I can't supply "ready to use" VIs as I have developed a proprietary product that has been deployed. You could access www.neurofeed.com for further information about it. I would be very happy to discuss the issues with you and see what I could send your way that would be suitable for a classroom environment, if you think that would be helpful.

[tomnz]

Yes I have just done this and it works fine. It takes
a stereo .wav file and does an LMS on it. You can select any number of weights. The output to a mono
.wav file is the enhanced signal (ie noise cancelled
signal). Email me for details.

Tom
t.j.moir@massey.ac.nz

[Ken Kearney]

Ernie,

This isn't an answer but actually a question. If you have come up with a LMS algorithm in LabView, I would be very grateful if you could pass it onto me at this address, kennethkearney@hotmail.com

Best Regards,

Kenneth Kearney

[marp84]

does anyone have applications of LabVIEW Adaptive Filter Toolkit ?

[Coq_Rouge]

I am in the beginning of looking into this topic, and I came over this book http://www.reviewscout.com/1598298992. It looks interesting, and I think I am going to purchase it. It is just a tip 😉

[pine]

NI LabVIEW Adaptive Filter Toolkit can be used to do this.