Search Results
Search type | Search syntax |
---|---|
Tags | [tag] |
Exact | "words here" |
Author |
user:1234 user:me (yours) |
Score |
score:3 (3+) score:0 (none) |
Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
Views | views:250 |
Code | code:"if (foo != bar)" |
Sections |
title:apples body:"apples oranges" |
URL | url:"*.example.com" |
Saves | in:saves |
Status |
closed:yes duplicate:no migrated:no wiki:no |
Types |
is:question is:answer |
Exclude |
-[tag] -apples |
For more details on advanced search visit our help page |
In signal processing noise can be considered random unwanted data without meaning.
1
vote
0
answers
85
views
Why is Power spectral density of random walk noise defined despite it being non-stationary? [duplicate]
While reading up on oscillator stability, I noticed that authors characterize random walk noise (Brownian noise) as having a PSD of $S_y(f) = h_{-2} f^{-2} $ where $h_{-2}$ is some constant. … This is in line with what Wikipedia has to say on the power spectrum of Brownian noise . …
3
votes
1
answer
1k
views
Allan Variance vs Autocorrelation - Advantages
I gather that it was developed as an alternative to the standard variance as it doesn't necessarily converge for power law noise. …