help-octave
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

## Re: Control System Question

 From: Doug Stewart Subject: Re: Control System Question Date: Wed, 8 Feb 2012 20:34:27 -0500

On Wed, Feb 8, 2012 at 8:24 PM, Thomas D. Dean wrote:
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)

den=[1 -1 0];

I do not understand why the 2nd order denom.

Tom Dean
_______________________________________________
Help-octave mailing list
address@hidden
https://mailman.cae.wisc.edu/listinfo/help-octave

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

y(1  - z^(-1) ) = x( aZ^-1  bZ^-2

y             aZ^-1  +bZ^-2                            Z^2
__ =      -----------------------           *     _______
x              (1 - z^-1)                                   Z^2

y                aZ  +  b
____  =   __________________
x                Z^2  -Z   +0

let me know how it works

reply via email to

 [Prev in Thread] Current Thread [Next in Thread]