LabVIEW
Sum of the Energy of the signal
I'll suggest (and later will also demonstrate) you, use For loop for repeatitive code.
Now based on the picture DSC_0037.jpg (algorithm), steps would be:
1. Divide the signal into 10 pieces (this will be an array/waveform)
2. Calculate RMS of each small piece (this will be numeric/scalar value).
3. Calculate sum...??? (what are the operands... or is there any array resulting in previous step which I missed..??)
4. Plot...?? because of doubt in previous step, its not clear what to plot...!!
What so ever you're trying in your for that you need not convert the samples (array) into waveform. You can directly tap the samples after 'Reshape Array' function.
Attached is the equivalent code with two outputs:
1. Graph of RMS values of enegies from each piece named as 'Energy []'
2. Sum of all energies named as 'Total Energy'.
Also, I've not tried it before but, you can use 'Get Waveform Subset.vi' instead of using 'Array Subset' function.
If you check here:
http://forums.ni.com/t5/LabVIEW/Sum-of-the-Energy-of-the-signal/td-p/2491178#M760345
The second output is the same, that you want to plot against time... now you need to figure out the rate (dt) to plot it wrt time.
