Timeline for Benefit of Anti-Aliasing for Wideband Finite Time Duration Signals prior to Sampling
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 29 at 16:33 | comment | added | Knut Inge | Filtering around ADC and DAC turns most problems into something that can be understood using somewhat basic dsp skill. I, for one, put some value into reusing what I know rather than having to start from scratch every time I start with a new problem. | |
| Jan 27 at 10:56 | comment | added | really not Constantine A. B. | Check it - imagine you slid the point after the jump along the exponential "Original" curve, between the sample instants your example is using. You get the exact same curve, because exponential decay has no memory, it just needs the current value to determine the next value at any given time distance. | |
| Jan 27 at 10:55 | comment | added | really not Constantine A. B. | Bit confused, because your graphic very neatly shows that your unfiltered sampling can't tell whether the original signal "jumped" earlier in the sample interval with a high amplitude, or later with a lower amplitude: both would lead to the exact same samples. The unfiltered method is insufficient to give you the time of edge. | |
| Jan 27 at 1:12 | answer | added | TimWescott | timeline score: 2 | |
| Jan 26 at 23:59 | answer | added | Dan Boschen | timeline score: 2 | |
| S Jan 26 at 22:05 | review | First questions | |||
| Jan 27 at 0:00 | |||||
| S Jan 26 at 22:05 | history | asked | abnowack | CC BY-SA 4.0 |