What's the best program structure for multi-channel Averaged FFTs?

I have been successfully using a 8-channel FFT analyzer using a separate Averaged FFT Spectrum (Mag-Phase) VI for each channel, but I now need to expand my channel count from 8 to 16. All channels are simultaneoulsy read in to a buffer to maintain phase relatioships. Do I need to have 16 copies of the Averaged FFT Spectrum VI in my diagram to maintain the averages of each channel or can I utilize one FFT VI somehow within a For Loop? If a For Loop can be used, how can the averaged spectrums be maintained for each of the 16 channels?

You should be able to use a single FFT vi in a for loop. If your data is in a 2D array representation with each row representing a channel and you leave the indexing enabled you can pass your data array into the loop and it will strip off each row automatically. You could then pass each row of data to the FFT and pass the results out to the boundary of the for loop. This will then build an array containing the FFT results for each row (channel).
Marc
Marc

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I've used Coldfusion for some time (CFmail tag) and have not
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Is it PHP, ASP, XML, Coldfusion....what?
You would think there has to be an optimum option out
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Beezy wrote:
> say ...500-5,000, maybe larger. Any ideas?
>
I've used CF to send out as many as 50,000+ emails in a
single blast and
haven't ever had any problems with it. Particularly with CF
Enterprise,
CF is an extremely high-performance mail generation engine.
Remeber
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the speed
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Matt
Matt Woodward
[email protected]
Adobe Community Expert - ColdFusion

What is the best data structure for loading an enterprise Power BI site?

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Dear All,
My original question was:
what's the optimum way of exposing data to the Power BI cloud?
Having spent the last month faffing about with Power BI – and reading about many people’s experiences using it – I think I can offer a few preliminary conclusions.
Before I do that, though, let me summarise a few points:
Melissa said “My initial thoughts: I would expose each dim & fact as a separate OData feed” and went on to say “one of the hardest things . . . is
the data modeling piece . . . I think we should try to expose the data in a way that'll help usability . . . which wouldn't be a wide, flat table ”.
Greg said “data modeling is not a good thing to expose end users to . . . we've had better luck with is building out the data model, and teaching the users
how to combine pre-built elements”
I had commented “. . . end users and data modelling don't mix . . . self-service so
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Here at Redwing, we give out a short White Paper on Business Intelligence Reporting. It goes to clients and anyone else who wants one. The heart
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I cannot just expose raw data and tell everyone to get on with it. That way lies madness!
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So my conclusion is that exposing the presentation layer of the properly modelled data warehouse is – in general - the way to expose data for self-service.
That’s fine for the general case, but what about Power BI? Well, it’s important to distinguish between new capabilities in Excel, and the ones in Office 365.
I think that to all intents and purposes, we’re talking about exposing data through the Data Management Gateway and reading it via Power Query.
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If I’m a real Power User, then I can use PQ on my desktop to pull mashup data from the world, along with all my on-prem data through my exposed Cube presentation layer, and PowerPivot the
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Of course, your enterprise might not
have a DW, just a heterogeneous mass of dirty unstructured data. If that’s the case,
choosing Power BI data structures is the least of your problems! :-)
Cheers, Donna
Donna Kelly

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> what's the best program for print? especially for
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Message was edited by: kennethfromtoronto

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What's the best program structure for multi-channel Averaged FFTs?

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