Timeline for The reasons for filter explosion
Current License: CC BY-SA 3.0
9 events
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| Aug 28, 2014 at 10:28 | history | edited | jojeck♦ | CC BY-SA 3.0 |
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| Aug 28, 2014 at 10:21 | comment | added | jojeck♦ |
@kruk: That's true, but buttord is already compatible with butter and you don't need to worry about that. In the manual you can find: Use the output arguments n and Wn in butter.
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| Aug 28, 2014 at 10:14 | comment | added | kruk | one more thing is not clear for me: $n$ obtained by buttord function. reference for butter function says: for bandpass, butter will return 2n filter. should $n$ provided by buttord function be used in butter, or should it be $n/2$ ? | |
| Aug 28, 2014 at 10:05 | history | edited | jojeck♦ | CC BY-SA 3.0 |
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| Aug 28, 2014 at 10:01 | vote | accept | kruk | ||
| Aug 28, 2014 at 9:57 | history | edited | jojeck♦ | CC BY-SA 3.0 |
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| Aug 28, 2014 at 9:52 | comment | added | jojeck♦ | @kruk: Indeed you are right, we want normalized frequency $\times \pi \text{ rad/sample}$, thus I was missing factor of 2! Sorry for that, I wrote this being on travel. | |
| Aug 28, 2014 at 9:26 | comment | added | kruk | Very helpful answer. However, wouldn't the frequency range $ 30 \mathrm Hz - 70\mathrm Hz$ be $[ 60 - 140 ] \cdot fs$ ? | |
| Aug 27, 2014 at 16:05 | history | answered | jojeck♦ | CC BY-SA 3.0 |