01-05-2014 04:38 PM - edited 01-05-2014 04:46 PM
Hello,
I am using labview 2011 and want to generate the second signal as shown in the attached image in labview as I want to use this as input for implementing the adaptive filtering, if the first signal in the image represents the output of the adaptive filtering.
Can I know how to generate second the signal.
Thanks.
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01-06-2014 01:23 AM
Do you want to generate a similar signal to test your fitering algorithm, or do you want to reverse the filtering operation?
Filtering always causes a loss in information and the operation is irreversible. Thus you cannot generate the second signal from the first signal.
Of course you could take an artificial signal and add similar noise to it.
01-06-2014 03:49 AM
Yes,I want to generate the similar second noisy signal so that i can feed it as input ot the filtering block and I don't want to reverse the filtering operation.
How to make an artificial signal and to add some noise that can produce the signal similar to the second signal.
01-06-2014 11:41 AM
Can someone help me out in generating the second signal(noisy signal) as shown in the above attached image.
01-06-2014 12:01 PM
I don't understand your question. You already have the waveform as shown in the image of your first post. You can make that a constant with a right click.
01-06-2014 12:10 PM
This waveform(second signal) shown in the image is copied from a project pdf.I really don't have the signal but I just have its image, so I want to generate and use this as my input signal for a filtering process.
01-06-2014 12:22 PM - edited 01-06-2014 12:30 PM
As a first step, just generate a clean signal, then add some noise. Do you need a specific flavor of noise? (White, pink, etc.)
01-06-2014 12:54 PM
Can I know how to generate the required type of clean signal and also the kind of noise to be added to it to make the required signal.
01-06-2014 01:20 PM
The filtered signal looks like a sawtooth wave with some possible frequency variation. Hard to tell, because it is still quite noisy. Even the clean signal is not very clean, even though it looks better than the original, which has barely any discerning features.
@PatanGova wrote:
Can I know how to generate the required type of clean signal and also the kind of noise to be added to it to make the required signal.
We cannot know the "requirements" by looking at the picture. What kind of instrument or data are you trying to simulate? You need to give us more background information.
01-06-2014 03:48 PM
I am planning to implement the Least mean square adaptive filtering for removing motion artifacts from pulse signals which was mentioned in a project report.
I want to test my adaptive filtering by least mean square vi which is ready at hand with the input as shown in the image so that I can check how the vi has to be modified so as to get the output similar to the one mentioned in the report by feeding the same input as in the report.
This is the reason why I am planning to create the same signal(as it is in project report).