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- ## Copyright (C) 1997 Kai P. Mueller
- ##
- ## This file is part of Octave.
- ##
- ## Octave is free software; you can redistribute it and/or modify it
- ## under the terms of the GNU General Public License as published by the
- ## Free Software Foundation; either version 2, or (at your option) any
- ## later version.
- ##
- ## Octave is distributed in the hope that it will be useful, but WITHOUT
- ## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- ## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- ## for more details.
- ##
- ## You should have received a copy of the GNU General Public License
- ## along with Octave; see the file COPYING. If not, write to the Free
- ## Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA.
-
- ## -*- texinfo -*-
- ## @deftypefn {Function File } { @var{outsys} =} jet707 ( )
- ## Creates linearized state space model of a Boeing 707-321 aircraft
- ## at v=80m/s. (M = 0.26, Ga0 = -3 deg, alpha0 = 4 deg, kappa = 50 deg)
- ## System inputs: (1) thrust and (2) elevator angle
- ## System outputs: (1) airspeed and (2) pitch angle
- ## Ref: R. Brockhaus: Flugregelung (Flight Control), Springer, 1994
- ##
- ## see also: ord2
- ##
- ## Contributed by Kai Mueller
- ## @end deftypefn
-
- function outsys = jet707 ()
-
- ## Written by Kai P. Mueller September 28, 1997
- ## Updates
-
- if (nargin != 0)
- usage("outsys = jet707()")
- endif
- if (nargin > 1)
- usage("outsys = jet707()")
- endif
-
- a = [ -0.46E-01, 0.10681415316, 0.0, -0.17121680433;
- -0.1675901504661613, -0.515, 1.0, 0.6420630320636088E-02;
- 0.1543104215347786, -0.547945, -0.906, -0.1521689385990753E-02;
- 0.0, 0.0, 1.0, 0.0 ];
- b = [ 0.1602300107479095, 0.2111848453E-02;
- 0.8196877780963616E-02, -0.3025E-01;
- 0.9173594317692437E-01, -0.75283075;
- 0.0, 0.0 ];
- c = [ 1.0, 0.0, 0.0, 0.0;
- 0.0, 0.0, 0.0, 1.0 ];
- d=zeros(2,2);
- inam = ["thrust"; "rudder"];
- onam = ["speed"; "pitch"];
- snam = ["x1"; "x2"; "x3"; "x4"];
- outsys = ss2sys(a, b, c, d, 0.0, 4, 0, snam, inam, onam);
- endfunction
-