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## Re: Control System Question

 From: Doug Stewart Subject: Re: Control System Question Date: Wed, 8 Feb 2012 20:57:40 -0500

On Wed, Feb 8, 2012 at 8:53 PM, Thomas D. Dean wrote:
On 02/08/12 17:34, Doug Stewart wrote:

On Wed, Feb 8, 2012 at 8:24 PM, Thomas D. Dean <address@hidden

On 02/08/12 17:00, Doug Stewart wrote:

y(n) = y(n-1) + (1/F1 + 1/F2)*x(n) + (1/F1 - 1/F2)*x(n-1)

The time equation involves y(n), y(n-1), x(n), and, x(n-1)

In z space this is
y=yZ^-1 + (a) xZ^-1  +bxZ-2

http://www.mikroe.com/eng/chapters/view/73/chapter-3-iir-filters/

Figure 3-2-8 shows my system.

Guess I need to read some more.

Thanks.

Tom Dean
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and just below is

Example:

The transfer function of a 3th order IIR filter, designed using Chebyshev function is:

This is a 3rd order yours was a second order.

--
DAS

https://linuxcounter.net/user/206392.html