Timeline for How do you prove that the bandwidth of a signal is inversely proportional to the length of the signal?
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 20, 2022 at 1:07 | comment | added | Dan Boschen | Yes I had assumed you would get more out of it if you dug through those details (and that this might be a HW problem, so can't give the full solution -that would be no fun). Glad you got it! | |
| Mar 20, 2022 at 0:57 | vote | accept | John Smith | ||
| Mar 20, 2022 at 0:57 | comment | added | John Smith | Ohhhhh it took me awhile to see that you're right. It's a u substitution. If you say that u = cx or u/c=x, you can plug in everything for u and get the identity! Thanks for the answer! | |
| Mar 19, 2022 at 23:50 | comment | added | Dan Boschen | Consider if in general a $X(\omega) = e^{j \omega t}$, what would $X(\omega/a)$ be? Just think through each form like that and the right substitutions and manipulations will make sense. | |
| Mar 19, 2022 at 23:39 | comment | added | John Smith | Thank you for your answer! Your math makes since but I don't follow how you got $\omega /a$ in Euler's number. Shouldn't it be $e^{j\omega at}$? | |
| Mar 19, 2022 at 23:34 | history | edited | Dan Boschen | CC BY-SA 4.0 |
added 364 characters in body
|
| Mar 19, 2022 at 23:28 | history | edited | Dan Boschen | CC BY-SA 4.0 |
added 364 characters in body
|
| Mar 19, 2022 at 23:21 | history | answered | Dan Boschen | CC BY-SA 4.0 |