Timeline for Why is there a difference in the phase when using fft versus a manual DFT on a cosine signal?
Current License: CC BY-SA 4.0
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| when toggle format | what | by | license | comment | |
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| Jun 6, 2023 at 18:17 | answer | added | Peter K.♦ | timeline score: 4 | |
| Jun 6, 2023 at 17:59 | comment | added | robert bristow-johnson | Be careful comparing expressions in continuous-time and continuous-frequency to their counterparts in discrete-time and discrete-frequency. There are scaling issues both in the independent variable ($t$ and $n$ or $\omega$ and $k$) and in the dependent variable ($x(t)$ and $x[n]$ or $X(\omega)$ and $X[k]$). To make a good direct comparison, you might want to review the Riemann integral. That's a good way to compare the integrals and dirac impulses in the continuous-time/frequency domain to the summations and kronecker impulses in the discrete-time/frequency domain. | |
| Jun 6, 2023 at 17:49 | history | edited | robert bristow-johnson | CC BY-SA 4.0 | deleted 25 characters in body |
| Jun 6, 2023 at 17:40 | history | edited | Darcy | CC BY-SA 4.0 | added 172 characters in body |
| Jun 6, 2023 at 17:35 | history | asked | Darcy | CC BY-SA 4.0 |