tstcdma.m

通信系统的matlab仿真程序

function [ret,x0,str,ts,xts]=tstcdma(t,x,u,flag);
%TSTCDMA	is the M-file description of the SIMULINK system named TSTCDMA.
%	The block-diagram can be displayed by typing: TSTCDMA.
%
%	SYS=TSTCDMA(T,X,U,FLAG) returns depending on FLAG certain
%	system values given time point, T, current state vector, X,
%	and input vector, U.
%	FLAG is used to indicate the type of output to be returned in SYS.
%
%	Setting FLAG=1 causes TSTCDMA to return state derivatives, FLAG=2
%	discrete states, FLAG=3 system outputs and FLAG=4 next sample
%	time. For more information and other options see SFUNC.
%
%	Calling TSTCDMA with a FLAG of zero:
%	[SIZES]=TSTCDMA([],[],[],0),  returns a vector, SIZES, which
%	contains the sizes of the state vector and other parameters.
%		SIZES(1) number of states
%		SIZES(2) number of discrete states
%		SIZES(3) number of outputs
%		SIZES(4) number of inputs
%		SIZES(5) number of roots (currently unsupported)
%		SIZES(6) direct feedthrough flag
%		SIZES(7) number of sample times
%
%	For the definition of other parameters in SIZES, see SFUNC.
%	See also, TRIM, LINMOD, LINSIM, EULER, RK23, RK45, ADAMS, GEAR.

% Note: This M-file is only used for saving graphical information;
%       after the model is loaded into memory an internal model
%       representation is used.

% the system will take on the name of this mfile:
sys = mfilename;
new_system(sys)
simver(1.3)
if (0 == (nargin + nargout))
     set_param(sys,'Location',[63,52,992,334])
     open_system(sys)
end;
set_param(sys,'algorithm',     'RK-45')
set_param(sys,'Start time',    '0.0')
set_param(sys,'Stop time',     '400')
set_param(sys,'Min step size', '0.0001')
set_param(sys,'Max step size', '.1')
set_param(sys,'Relative error','1e-3')
set_param(sys,'Return vars',   '')
set_param(sys,'Load callback','F0=50;F2=80;F4=110;ts=.002;[num0,den0]=butter(2,F0/2*ts);[num4,den4]=butter(2,F4/2*ts);[num2,den2]=butter(2,F2/2*ts);');

add_block('built-in/Mux',[sys,'/','Mux5'])
set_param([sys,'/','Mux5'],...
		'hide name',0,...
		'inputs','2',...
		'position',[810,21,845,54])

add_block('built-in/Scope',[sys,'/','element 1'])
set_param([sys,'/','element 1'],...
		'Vgain','1.500000',...
		'Hgain','4.000000',...
		'Vmax','3.000000',...
		'Hmax','8.000000',...
		'Window',[8,348,349,632])
open_system([sys,'/','element 1'])
set_param([sys,'/','element 1'],...
		'position',[880,27,900,53])

add_block('built-in/Scope',[sys,'/','element 2'])
set_param([sys,'/','element 2'],...
		'Vgain','1.500000',...
		'Hgain','4.000000',...
		'Vmax','3.000000',...
		'Hmax','8.000000',...
		'Window',[344,348,678,635])
open_system([sys,'/','element 2'])
set_param([sys,'/','element 2'],...
		'position',[875,82,895,108])

add_block('built-in/Mux',[sys,'/','Mux4'])
set_param([sys,'/','Mux4'],...
		'hide name',0,...
		'inputs','2',...
		'position',[815,76,850,109])

add_block('built-in/Mux',[sys,'/','Mux3'])
set_param([sys,'/','Mux3'],...
		'hide name',0,...
		'inputs','2',...
		'position',[815,141,850,174])

add_block('built-in/Note',[sys,'/','Code division multiaccess example (frequency hoping method).'])
set_param([sys,'/','Code division multiaccess example (frequency hoping method).'],...
		'position',[300,220,305,225])

add_block('built-in/Note',[sys,'/','Time-division access combines with frequency-division access.'])
set_param([sys,'/','Time-division access combines with frequency-division access.'],...
		'position',[300,240,305,245])


%     Subsystem  ['Time delayed',13,'control pulse'].

new_system([sys,'/',['Time delayed',13,'control pulse']])
set_param([sys,'/',['Time delayed',13,'control pulse']],'Location',[442,574,1004,748])

add_block('built-in/Inport',[sys,'/',['Time delayed',13,'control pulse/in_1']])
set_param([sys,'/',['Time delayed',13,'control pulse/in_1']],...
		'position',[30,35,50,55])

add_block('built-in/Unit Delay',[sys,'/',['Time delayed',13,'control pulse/Unit Delay']])
set_param([sys,'/',['Time delayed',13,'control pulse/Unit Delay']],...
		'Sample time','100*ts',...
		'position',[105,37,155,53])


%     Subsystem  ['Time delayed',13,'control pulse/Rising edge',13,'detector'].

new_system([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector']])
set_param([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector']],'Location',[282,116,671,290])

add_block('built-in/Outport',[sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector/out_1']])
set_param([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector/out_1']],...
		'position',[340,25,360,45])

add_block('built-in/Relational Operator',[sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector/Relational',13,'Operator1']])
set_param([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector/Relational',13,'Operator1']],...
		'position',[200,88,230,112])

add_block('built-in/Relational Operator',[sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector/Relational',13,'Operator2']])
set_param([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector/Relational',13,'Operator2']],...
		'Operator','>',...
		'position',[265,23,295,47])

add_block('built-in/Constant',[sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector/one1']])
set_param([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector/one1']],...
		'Value','thld',...
		'position',[30,135,60,155])

add_block('built-in/Memory',[sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector/Memory1']])
set_param([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector/Memory1']],...
		'position',[125,80,165,110])

add_block('built-in/Inport',[sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector/in_1']])
set_param([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector/in_1']],...
		'position',[10,15,30,35])

add_block('built-in/Relational Operator',[sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector/Relational',13,'Operator']])
set_param([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector/Relational',13,'Operator']],...
		'position',[135,18,165,42])
add_line([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector']],[35,25;130,25])
add_line([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector']],[45,25;45,95;120,95])
add_line([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector']],[170,95;195,95])
add_line([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector']],[65,145;100,145;100,35;130,35])
add_line([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector']],[100,145;180,145;180,105;195,105])
add_line([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector']],[170,30;260,30])
add_line([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector']],[235,100;240,100;240,40;260,40])
add_line([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector']],[300,35;335,35])
set_param([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector']],...
		'Mask Display','Edge\nDetector',...
		'Mask Type','Edge Detection',...
		'Mask Dialogue','Rising edge detection:|Threshold:',...
		'Mask Translate','thld=@1;')
set_param([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector']],...
		'Mask Help','When the input signal rising edge passed the given shreshold, this block outputs one, otherwise outputs zero.',...
		'Mask Entries','0.5\/')


%     Finished composite block ['Time delayed',13,'control pulse/Rising edge',13,'detector'].

set_param([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector']],...
		'position',[200,23,275,67])

add_block('built-in/Unit Delay',[sys,'/',['Time delayed',13,'control pulse/Unit Delay1']])
set_param([sys,'/',['Time delayed',13,'control pulse/Unit Delay1']],...
		'Sample time','[100*ts, 50*ts]',...
		'position',[105,97,155,113])


%     Subsystem  ['Time delayed',13,'control pulse/Rising edge',13,'detector1'].

new_system([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1']])
set_param([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1']],'Location',[282,116,671,290])

add_block('built-in/Relational Operator',[sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1/Relational',13,'Operator']])
set_param([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1/Relational',13,'Operator']],...
		'position',[135,18,165,42])

add_block('built-in/Inport',[sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1/in_1']])
set_param([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1/in_1']],...
		'position',[10,15,30,35])

add_block('built-in/Memory',[sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1/Memory1']])
set_param([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1/Memory1']],...
		'position',[125,80,165,110])

add_block('built-in/Constant',[sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1/one1']])
set_param([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1/one1']],...
		'Value','thld',...
		'position',[30,135,60,155])

add_block('built-in/Relational Operator',[sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1/Relational',13,'Operator2']])
set_param([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1/Relational',13,'Operator2']],...
		'Operator','>',...
		'position',[265,23,295,47])

add_block('built-in/Relational Operator',[sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1/Relational',13,'Operator1']])
set_param([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1/Relational',13,'Operator1']],...
		'position',[200,88,230,112])

add_block('built-in/Outport',[sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1/out_1']])
set_param([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1/out_1']],...
		'position',[340,25,360,45])
add_line([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1']],[300,35;335,35])
add_line([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1']],[235,100;240,100;240,40;260,40])
add_line([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1']],[170,30;260,30])
add_line([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1']],[65,145;100,145;100,35;130,35])
add_line([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1']],[100,145;180,145;180,105;195,105])
add_line([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1']],[170,95;195,95])
add_line([sys,'/',['Time delayed',13,'control pulse/Rising edge',13,'detector1']],[35,25;130,25])