Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

RMS calculation of digitized periodic signal

Status
Not open for further replies.
G

ge

Full Member level 5
Joined
Jun 23, 2006
Messages
250
Helped
29
Reputation
58
Reaction score
29
Trophy points
1,308
Location
Pennsylvania, USA
Activity points
2,772
I am calculating the RMS of a digitized periodic signal with 250 x data points per cycle. (1) Is the equation, SQRT((1/n)*(x1^2+x2^2+…+xn^2)), where n is 250? (2) How does this equation work if the signal has both positive and negative excursions?

tnx
GE
 

Being each point is squared, the negative points would become positive. Then summed makes the number larger. Never appreciated that fact before.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top