1 ## Copyright (C) 1997, 2000, 2004, 2005, 2006, 2007 Kai P. Mueller
4 ## This program is free software; you can redistribute it and/or modify it
5 ## under the terms of the GNU General Public License as published by
6 ## the Free Software Foundation; either version 3 of the License, or (at
7 ## your option) any later version.
9 ## This program is distributed in the hope that it will be useful, but
10 ## WITHOUT ANY WARRANTY; without even the implied warranty of
11 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 ## General Public License for more details.
14 ## You should have received a copy of the GNU General Public License
15 ## along with this program; see the file COPYING. If not, see
16 ## <http://www.gnu.org/licenses/>.
19 ## @deftypefn {Function File} {@var{sys} =} Boeing707 ()
20 ## Creates a linearized state-space model of a Boeing 707-321 aircraft
24 ## ($M = 0.26$, $G_{a0} = -3^{\\circ}$, ${\\alpha}_0 = 4^{\\circ}$, ${\\kappa}= 50^{\\circ}$).
28 ## (@var{M} = 0.26, @var{Ga0} = -3 deg, @var{alpha0} = 4 deg, @var{kappa} = 50 deg).
31 ## System inputs: (1) thrust and (2) elevator angle.
33 ## System outputs: (1) airspeed and (2) pitch angle.
35 ## @strong{Reference}: R. Brockhaus: @cite{Flugregelung} (Flight
36 ## Control), Springer, 1994.
39 ## Author: Kai P. Mueller <mueller@ifr.ing.tu-bs.de>
40 ## Created: September 28, 1997
42 function outsys = Boeing707 ()
48 a = [-0.46E-01, 0.10681415316, 0.0, -0.17121680433;
49 -0.1675901504661613, -0.515, 1.0, 0.6420630320636088E-02;
50 0.1543104215347786, -0.547945, -0.906, -0.1521689385990753E-02;
53 b = [0.1602300107479095, 0.2111848453E-02;
54 0.8196877780963616E-02, -0.3025E-01;
55 0.9173594317692437E-01, -0.75283075;
58 c = [1.0, 0.0, 0.0, 0.0;
63 inam = {"thrust"; "rudder"};
64 onam = {"speed"; "pitch"};
65 ## snam = {"x1"; "x2"; "x3"; "x4"};
67 outsys = ss (a, b, c, d, "inname", inam, "outname", onam);