Timeline for How to implement an RF Mixer for chirp signal in python?
Current License: CC BY-SA 4.0
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 20, 2021 at 0:24 | comment | added | Dan Boschen | As it sounds like you are asking, to confirm yes indeed the product of two signals occupying specific frequencies (tones) would be the sum and the difference. We see this in the trigonometric product identities such as $\cos(\alpha)\cos(\beta) = \frac{1}{2}cos(\alpha+\beta) + \frac{1}{2}cos(\alpha-\beta)$ Since the frequencies are so far apart, the simplest filter (for someone less familiar with any filtering) is a moving average. The short-term average of the signal will reveal the difference signal. | |
| Feb 19, 2021 at 21:27 | comment | added | d9ngle | Isn't being out of phase enough? I'm trying to simulate a radar echo. Also can you show me how to do the low pass filter? | |
| Feb 19, 2021 at 21:17 | history | answered | endolith | CC BY-SA 4.0 |