From help-request at octave dot org Mon Jan 2 12:52:03 2006 Subject: Error in lqe documentation From: A S Hodel To: help at octave dot org Date: Mon, 2 Jan 2006 09:06:58 -0600 --Apple-Mail-7--1006571068 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed The current lqe documentation reads: lqe is the user-defined function from the file /sw/share/octave/2.1.71/m/control/base/lqe.m -- Function File: [K, P, E] = lqe (A, G, C, SIGW, SIGV, Z) Construct the linear quadratic estimator (Kalman filter) for the continuous time system dx -- = a x + b u dt y = c x + d u The differential equations listed are incorrect and do not correspond to the input parameters. They should be dx -- = a x + G w dt y = c x + v A S Hodel http://homepage.mac.com/hodelas hodelas at mac dot com --Apple-Mail-7--1006571068 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=ISO-8859-1
The current lqe = documentation reads:
lqe is the user-defined function from the = file
/sw/share/octave/2.1.71/m/control/base/lqe.m

-- = Function File: [K, P, E] =3D lqe (A, G, C, SIGW, SIGV, = Z)
=A0 =A0=A0 Construct the linear quadratic estimator = (Kalman filter) for the
=A0 =A0=A0 continuous time = system

=A0 =A0 =A0 =A0 =A0 = dx
=A0 =A0 =A0 =A0 =A0 -- =3D a x + b = u
=A0 =A0 =A0 =A0 =A0 dt

=A0 =A0 =A0 =A0 =A0 = y =3D c x + d u

The differential equations = listed are incorrect and do not correspond to the input parameters.=A0 = They should be

=A0 =A0 =A0 =A0 =A0 = dx
=A0 =A0 =A0 =A0 =A0 -- =3D a x + G = w
=A0 =A0 =A0 =A0 =A0 dt

=A0 =A0 =A0 =A0 =A0 = y =3D c x + v

A S Hodel http://homepage.mac.com/hodelas
hodelas@mac dot com

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