Timeline for IQ FM Demodulation of Wow and Flutter Signal in Software
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 13, 2017 at 12:33 | history | edited | CommunityBot | replaced http://electronics.stackexchange.com/ with https://electronics.stackexchange.com/ | |
| Mar 24, 2017 at 5:45 | comment | added | Dan Boschen | Are you using Matlab? It has a command unwrap(phase) as otherwise the phase will roll at the $2\pi$ boundaries. If the phase had an upward slope (for example) if it was plotted normally you would see a sawtooth as it would not go past $2\pi$. By unwrapping it you end up getting a single smooth function of phase growing continuously with time. Since $d\phi/dt$ is frequency, the slope of that line would be frequency (when divided by $2\pi$), so that is what you would want to work with. Make sense? | |
| Mar 24, 2017 at 5:42 | history | edited | Dan Boschen | CC BY-SA 3.0 | added 13 characters in body |
| Mar 24, 2017 at 5:39 | comment | added | Josef de Joanelli | What do you mean unwrap the phase? | |
| Mar 24, 2017 at 5:28 | history | edited | Dan Boschen | CC BY-SA 3.0 | added 13 characters in body |
| Mar 23, 2017 at 23:57 | history | answered | Dan Boschen | CC BY-SA 3.0 |