|
3430
|
1 ## Copyright (C) 1996 Auburn University. All rights reserved. |
|
|
2 ## |
|
|
3 ## This file is part of Octave. |
|
|
4 ## |
|
|
5 ## Octave is free software; you can redistribute it and/or modify it |
|
|
6 ## under the terms of the GNU General Public License as published by the |
|
|
7 ## Free Software Foundation; either version 2, or (at your option) any |
|
|
8 ## later version. |
|
|
9 ## |
|
|
10 ## Octave is distributed in the hope that it will be useful, but WITHOUT |
|
|
11 ## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
|
12 ## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
|
13 ## for more details. |
|
|
14 ## |
|
|
15 ## You should have received a copy of the GNU General Public License |
|
|
16 ## along with Octave; see the file COPYING. If not, write to the Free |
|
|
17 ## Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. |
|
|
18 |
|
|
19 ## function sysp = parallel(Asys,Bsys) |
|
|
20 ## Forms the parallel connection of two systems. |
|
|
21 ## |
|
|
22 ## ____________________ |
|
|
23 ## | ________ | |
|
|
24 ## u ----->|----> | Asys |--->|----> y1 |
|
|
25 ## | | -------- | |
|
|
26 ## | | ________ | |
|
|
27 ## |--->|----> | Bsys |--->|----> y2 |
|
|
28 ## | -------- | |
|
|
29 ## -------------------- |
|
|
30 ## Ksys |
|
|
31 |
|
|
32 ## Author: David Clem |
|
|
33 ## Created: August 15, 1994 |
|
|
34 ## completely rewritten Oct 1996 a s hodel |
|
|
35 ## SYS_INTERNAL accesses members of system structure |
|
|
36 |
|
|
37 function sysp = parallel (Asys, Bsys) |
|
|
38 |
|
|
39 if(nargin != 2) |
|
|
40 usage("sysp = parallel(Asys,Bsys)"); |
|
|
41 endif |
|
|
42 if(! is_struct(Asys) ) |
|
|
43 error("1st input argument is not a system data structure") |
|
|
44 elseif (! is_struct(Bsys) ) |
|
|
45 error("2nd input argument is not a system data structure") |
|
|
46 endif |
|
|
47 [Ann,Anz,mA] = sysdimensions(Asys); |
|
|
48 [Bnn,Bnz,mB] = sysdimensions(Bsys); |
|
|
49 if(mA != mB) |
|
|
50 error(["Asys has ",num2str(mA)," inputs, Bsys has ",num2str(mB)," inputs"]); |
|
|
51 endif |
|
|
52 |
|
|
53 ## save signal names |
|
|
54 Ain = sysgetsignals(Asys,"in"); |
|
|
55 |
|
|
56 ## change signal names to avoid warning messages from sysgroup |
|
3438
|
57 Asys = syssetsignals(Asys,"in",__sysdefioname__(length(Ain),"Ain_u")); |
|
|
58 Bsys = syssetsignals(Bsys,"in",__sysdefioname__(length(Ain),"Bin_u")); |
|
3430
|
59 |
|
|
60 sysp = sysgroup(Asys,Bsys); |
|
|
61 sysD = ss2sys([],[],[],[eye(mA);eye(mA)]); |
|
|
62 |
|
|
63 sysp = sysmult(sysp,sysD); |
|
|
64 sysp = syssetsignals(sysp,"in",Ain); |
|
|
65 |
|
|
66 endfunction |
