Thread: Electronics function help.

Hello,

Been out of practice so long that all is forgotten.
I was wondering if someone could help me understand and apply the following expression:




It was suggested to me to help smooth out a noisy voltage signal.

Hugger

Originally Posted by Hugger

Hello,

Been out of practice so long that all is forgotten.
I was wondering if someone could help me understand and apply the following expression:




It was suggested to me to help smooth out a noisy voltage signal.

Hugger

Please explain you notation, as it is that is meaningless

CB

Thanks for the response CB.

I will go back and check to see if I goofed the notation.

Again, I am trying to come up with an expression that will smooth out samples taken of voltage that is somewhat noisy by averaging a group of samples to get rid of dips and spikes.

I'll reply when I verify notation.

Hugger

Originally Posted by Hugger

Thanks for the response CB.

I will go back and check to see if I goofed the notation.

Again, I am trying to come up with an expression that will smooth out samples taken of voltage that is somewhat noisy by averaging a group of samples to get rid of dips and spikes.

I'll reply when I verify notation.

Hugger

A moving window smoother would be something like:



where the are the input samples and the are the smoothed outputs.

Though this introduces a lag of samples. So if m is odd, then:



is a moving average smoother with no lag (though there is now latency of samples).

CB