| ??? 11/24/06 13:55 Modified: 11/24/06 14:09 Read: times |
#128487 - Harmonics... Responding to: ???'s previous message |
Having a look at your scope plot, which I recall here
 I guess there are at least four "sine" oscillations: ~2kHz ~4kHz ~20...30kHz (+ harmonics), maybe two or more narrow beating sines? ~600kHz What do you want to detect from these oscillations? Is it right, what Jez said, that the signal is formed by frequency modulation? If so, then you have to demodulate the signal first. Why? Remember, you told us Ap said:
I have a sin wave encoded with multiple oscillation 1Khz to 200KHz So, how will you know whether the 4kHz sine of above example is a modulation product or your data? Kai |
| Topic | Author | Date |
| oscillation analysis | 01/01/70 00:00 | |
| You might want to look at ... | 01/01/70 00:00 | |
| Very narrow-band IIR filter? | 01/01/70 00:00 | |
| Explanations | 01/01/70 00:00 | |
| More details needed! | 01/01/70 00:00 | |
| More details .. | 01/01/70 00:00 | |
| Active filters | 01/01/70 00:00 | |
| Active filters | 01/01/70 00:00 | |
| so its frequency modulation basically | 01/01/70 00:00 | |
| I am confused as to what you do want | 01/01/70 00:00 | |
| I am confused as to | 01/01/70 00:00 | |
| yeah well horrendous problems | 01/01/70 00:00 | |
| Spectrum Analyses.. | 01/01/70 00:00 | |
Harmonics... | 01/01/70 00:00 |