analog and digital filters?

Question

hi guys
in one of my lectures in digital signal processing...one of my colleagues asked a question about analog filters about why don't we just use them for digital signals instead of using analog filters the docter gave an answer nobody understood and said it should be an assigment for us.....i'm wondering if it is possible to use analog filters on digital filters and if not why ?
thanks

Answer 1

Analog or standard component filters are great for High Pass & Low Pass filters. They they start getting a little more difficult when it comes to a Band Pass filters. Analog filters will typically have long skirts on the curve of frequencies passed.



With digital, you can theoretically pass any number of frequencies at the same time, with almost zero skirts on each.

Answer 2

There are motives for utilising the two. you are going to be able to desire to appreciate the characteristics of your issue in the past you may opt for. case in point the skill. For sign processing, digital filtering could be ultimate, yet you may no longer clear out a skill supply output utilising a working laptop or computing device.

Answer 3

So go out and research the topic.

It's your homework assignment to come up with an answer, not to dump your question on some forum and wat for someone to write it up for you.