Timeline for Can we choose a sampling frequency to remove unwanted noise at a specific frequency?
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 29, 2020 at 18:50 | comment | added | Mag | I understand, thank you for taking the time to answer! | |
| Dec 29, 2020 at 18:49 | vote | accept | Mag | ||
| Dec 29, 2020 at 18:49 | comment | added | Matt L. | @Mag: You're right that the correct answer is indeed $f_s=320$ Hz. I just showed you a general way of proving it. You might not always have an impulse response for which you can readily see the result. Note that $j=e^{j\pi/2}$, and since $\pi$ corresponds to Nyquist, $\pi/2$ corresponds to half the Nyquist frequency. | |
| Dec 29, 2020 at 18:44 | comment | added | Mag | With the Nyquist frequency being half the sample frequency, shouldn’t 80 Hz be at Nyquist? If not, it seems that my result is correct but my approach is wrong? Because then, according to your answer, 80 Hz should be at Fs/4 which would make Fs=320 Hz | |
| Dec 29, 2020 at 17:22 | history | answered | Matt L. | CC BY-SA 4.0 |