0
$\begingroup$

It will be great if someone can explain me what exactly means "real impulse response". Further more , what is the effect of such a response on ROC (Laplace plane) and in particular if its restrict the possible area of the poles and zeros? Thanks

$\endgroup$
0
$\begingroup$

real impulse response

An impulse response that is real-valued.

effect of such a response on ROC

nothing specific, since realness doesn't imply any kind of stability/convergence, far as I can tell. It does tell you something about poles and zeros always appearing in conjugate pairs, but that's it.

restrict the possible area of the poles and zeros

no

$\endgroup$
  • $\begingroup$ thank you very much $\endgroup$ – idos Aug 16 '20 at 14:59
  • $\begingroup$ Well, the possible values of the poles and zeros are subject to only coming in conjugate pairs -- i.e., if you have a pole at $a + jb$, there would need to be a matching one at $a - jb$ for the impulse response to be real. $\endgroup$ – TimWescott Aug 16 '20 at 21:42
  • $\begingroup$ @TimWescott I feel like that's the second sentence of my second paragraph? $\endgroup$ – Marcus Müller Aug 16 '20 at 21:48
  • $\begingroup$ Ah, I missed that. Need to go back to 3rd grade and repeat the reading comprehension part of my education, apparently. $\endgroup$ – TimWescott Aug 16 '20 at 22:34
  • $\begingroup$ @TimWescott you're doing fine so far; it's probably just a erasure on reading my post, and then your FEC decoder kicked in $\endgroup$ – Marcus Müller Aug 17 '20 at 9:20

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.