True resolution

celef

Member
2012-11-26 7:40 pm
Lot of measurement graphs are so smooth that they almost looks like they are made up, like REW graphs looks amazingly fancy and smooth, but when looking at graphs made with hiend measurement systems like Klippel they look always a lot worse and i think more accurate

If a measurement due to setup has a low resolution of 200 Hz, is it not better to just show every true measurement point and nothing in between?
 

AllenB

Moderator
Paid Member
2008-10-18 11:31 am
A specific amount of smoothing can help crossover design by removing the high Q peaks that we probably won't hear. Another example of the idea when zooming a scope, you can focus on a single issue amongst many issues when you get this right.
 

celef

Member
2012-11-26 7:40 pm
oh, no, i did not talk about smoothing, i meant true resolution, if i measure something with gating then the resolution is dependent on the time window, a small time window will get poor resolution, i think it would be more truthfull and fair to show only frequency points that is actually measured and not something that is extrapolated