| Home | Terms of Use | Site Map | Contact Us |
IndustryCommunity.com > Electrical and Electronic Community > Help Wanted Bulletin Board > Archives
Main Menu
Find

[ Post a Follow-up ][ New Thread ]

Subject: Filter Design

Date: 10/17/99
Posted by: Adrian Cheung
E-mail: the_cheungster(at)hotmail(dot)com(no spam)
URL: http://

Message:

Hi all, I'm in 2nd year eng, and I am trying to design a touch tone phone filter through MATLAB. I'm almost there, but the most difficult part is the optimisation of it's performance, i.e., FIR vs. IIR, Chebychev vs. Butterworth vs. Elliptical filters, effect of group delay, length of tone, tradeoff between signal to noise ratio and bandwidth of filters etc. etc. Can someone please give me some basic advice in these areas, or direct me to a useful web site that will. By the way, I use SpTool to design the filters. Thanks in advance, Adrian Cheung P.S. if you want to email me, please reply to: the_cheungster@hotmail.com

Post a Follow-up:

This message has been here for a period of time, a follow-up seems unnecessary. In this place we have stopped the functions of [post a follow-up]. To discuss and communicate your ideas/info, you may use our new message boards, please go to: Electrical and Electronic Community

When you do want to contact the author of this message, you must replace the "(at)" with "@" and "(dot)" with "." in his/her e-mail address above. But, please do not spam...

New Thread:

To create a new thread, please go to the current board of discussion forums. On that page, click the [Post a Message] or [New Thread] link, then you will find the submit form.

There are more than 55 boards in our site. Please choose, according to your topics, an appropriate one to post your message. If you are new comers, we suggest you to go to our Homepage to have a clear knowledge of the subjects and the orientations of our site before you post any messages.

1999-2001 Sunlit Technology Co., Ltd. All rights reserved.