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Acquiring signals at different rates


@crossrulz wrote:

@guhal wrote:

Further, what did you mean when you said to resample at the lower rate?


This is a signal processing trick to take a lot of data and condense it.  There are pros and cons to doing this.  Less data = less power.  Less data = lower bandwidth.  But simple ways to "resample" your data is to perform an average on every X samples to reduce your rate by a factor of X.  More involved resampling (what I was taught in school) is to decimate your data and then apply a filter.  There are VIs specifically for resampling your data in the Signal Processing palette.


Thank you Tim!

 

You said what I would have said but better (smiley-wink).

 

guhal,

 

Unless you can specify WHY a lower sample rate is required, take the more direct approach and supply more than what is expected.

 

Ben

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Ben wrote:

Unless you can specify WHY a lower sample rate is required, take the more direct approach and supply more than what is expected.


In other words: It is usually better to have too much information than not enough.


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