calculate resolution bandwidth

[mikkeboss]

Hello

I'm working with NI usrp-2920 and labview 2014. I need to calculate channel power at specified band. To do this i need resolution bandwidth, but i have no idea where i can get value of it. You can see my VIs on the picture. If anyone could help me i'll be grateful.

[Joe_H]

You should check out this page. http://www.ni.com/white-paper/3983/en/

[mikkeboss]

Yes, i saw this document, but it doesn't say how to get used resoultion bandwidth. It only shows dependecies between RBW and  spectrum.

[jamiva]

You need to click on the following link in that page

 The Fundamentals of FFT-Based Signal Analysis and Measurement in LabVIEW and LabWindows/CVI

This document has all the formulas you are asking for