tstricia.m

数字通信第四版原书的例程

function [ret,x0,str,ts,xts]=tstricia(t,x,u,flag);
%TSTRICIA	is the M-file description of the SIMULINK system named TSTRICIA.
%	The block-diagram can be displayed by typing: TSTRICIA.
%
%	SYS=TSTRICIA(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 TSTRICIA 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 TSTRICIA with a FLAG of zero:
%	[SIZES]=TSTRICIA([],[],[],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',[65,128,545,423])
     open_system(sys)
end;
set_param(sys,'algorithm',     'RK-45')
set_param(sys,'Start time',    '0.0')
set_param(sys,'Stop time',     '999')
set_param(sys,'Min step size', '0.0001')
set_param(sys,'Max step size', '10')
set_param(sys,'Relative error','1e-3')
set_param(sys,'Return vars',   '')


%     Subsystem  'Mean and var1'.

new_system([sys,'/','Mean and var1'])
set_param([sys,'/','Mean and var1'],'Location',[16,148,774,399])

add_block('built-in/Inport',[sys,'/','Mean and var1/Actual'])
set_param([sys,'/','Mean and var1/Actual'],...
		'position',[25,35,45,55])

add_block('built-in/Digital Clock',[sys,'/','Mean and var1/Digital Clock'])
set_param([sys,'/','Mean and var1/Digital Clock'],...
		'Sample time','Ts',...
		'position',[45,80,80,110])

add_block('built-in/Fcn',[sys,'/','Mean and var1/Fcn2'])
set_param([sys,'/','Mean and var1/Fcn2'],...
		'Expr','u[1]/Ts +1',...
		'position',[105,83,165,107])

add_block('built-in/Unit Delay',[sys,'/','Mean and var1/Unit Delay1'])
set_param([sys,'/','Mean and var1/Unit Delay1'],...
		'orientation',2,...
		'Sample time','Ts',...
		'position',[350,87,400,103])

add_block('built-in/Outport',[sys,'/','Mean and var1/mean value'])
set_param([sys,'/','Mean and var1/mean value'],...
		'position',[545,45,565,65])

add_block('built-in/Mux',[sys,'/','Mean and var1/Mux1'])
set_param([sys,'/','Mean and var1/Mux1'],...
		'inputs','3',...
		'position',[235,39,265,71])

add_block('built-in/Fcn',[sys,'/','Mean and var1/Fcn3'])
set_param([sys,'/','Mean and var1/Fcn3'],...
		'Expr','(u[3]*(u[2]-1) + u[1])/u[2]',...
		'position',[290,41,465,69])

add_block('built-in/Mux',[sys,'/','Mean and var1/Mux'])
set_param([sys,'/','Mean and var1/Mux'],...
		'inputs','3',...
		'position',[235,134,265,166])

add_block('built-in/Unit Delay',[sys,'/','Mean and var1/Unit Delay'])
set_param([sys,'/','Mean and var1/Unit Delay'],...
		'orientation',2,...
		'Sample time','Ts',...
		'position',[345,192,395,208])

add_block('built-in/Fcn',[sys,'/','Mean and var1/Fcn'])
set_param([sys,'/','Mean and var1/Fcn'],...
		'Expr','(u[3]*(u[2]-1) + u[1]*u[1])/u[2]',...
		'position',[290,136,465,164])

add_block('built-in/Sum',[sys,'/','Mean and var1/Sum'])
set_param([sys,'/','Mean and var1/Sum'],...
		'inputs','-+',...
		'position',[645,135,665,155])

add_block('built-in/Mux',[sys,'/','Mean and var1/Mux2'])
set_param([sys,'/','Mean and var1/Mux2'],...
		'inputs','2',...
		'position',[515,101,545,134])

add_block('built-in/Fcn',[sys,'/','Mean and var1/Fcn4'])
set_param([sys,'/','Mean and var1/Fcn4'],...
		'Expr','u[1]*u[1]',...
		'position',[555,107,620,133])

add_block('built-in/Outport',[sys,'/',['Mean and var1/Mean',13,'Squared',13,'Error1']])
set_param([sys,'/',['Mean and var1/Mean',13,'Squared',13,'Error1']],...
		'Port','2',...
		'position',[700,135,720,155])
add_line([sys,'/','Mean and var1'],[85,95;100,95])
add_line([sys,'/','Mean and var1'],[340,200;220,200;230,160])
add_line([sys,'/','Mean and var1'],[270,150;285,150])
add_line([sys,'/','Mean and var1'],[270,55;285,55])
add_line([sys,'/','Mean and var1'],[170,95;190,95;190,150;230,150])
add_line([sys,'/','Mean and var1'],[190,95;190,55;230,55])
add_line([sys,'/','Mean and var1'],[345,95;210,95;210,65;230,65])
add_line([sys,'/','Mean and var1'],[50,45;230,45])
add_line([sys,'/','Mean and var1'],[200,45;200,140;230,140])
add_line([sys,'/','Mean and var1'],[470,150;480,150;480,200;400,200])
add_line([sys,'/','Mean and var1'],[480,150;640,150])
add_line([sys,'/','Mean and var1'],[625,120;625,140;640,140])
add_line([sys,'/','Mean and var1'],[470,55;540,55])
add_line([sys,'/','Mean and var1'],[495,55;495,95;405,95])
add_line([sys,'/','Mean and var1'],[495,95;495,110;510,110])
add_line([sys,'/','Mean and var1'],[190,125;510,125])
add_line([sys,'/','Mean and var1'],[550,120;550,120])
add_line([sys,'/','Mean and var1'],[670,145;695,145])
set_param([sys,'/','Mean and var1'],...
		'Mask Display','Mean\n& var',...
		'Mask Type','Running mean and var',...
		'Mask Dialogue','Output the running mean to 1st outport\nand running variant to 2nd outport.|Sample time (sec):')
set_param([sys,'/','Mean and var1'],...
		'Mask Translate','Ts=@1;',...
		'Mask Help','This block updates the running mean and variant value at sampling time point. The mean and var values are outputted into 1st and 2nd outports respectively.')
set_param([sys,'/','Mean and var1'],...
		'Mask Entries','.1\/')


%     Finished composite block 'Mean and var1'.

set_param([sys,'/','Mean and var1'],...
		'hide name',0,...
		'position',[215,33,295,77])

add_block('built-in/Product',[sys,'/','Product1'])
set_param([sys,'/','Product1'],...
		'hide name',0,...
		'position',[160,43,190,67])


%     Subsystem  ['Rician noise',13,'generator'].

new_system([sys,'/',['Rician noise',13,'generator']])
set_param([sys,'/',['Rician noise',13,'generator']],'Location',[52,446,521,649])

add_block('built-in/Product',[sys,'/',['Rician noise',13,'generator/Product']])
set_param([sys,'/',['Rician noise',13,'generator/Product']],...
		'position',[160,48,190,72])

add_block('built-in/Product',[sys,'/',['Rician noise',13,'generator/Product1']])
set_param([sys,'/',['Rician noise',13,'generator/Product1']],...
		'position',[165,118,195,142])

add_block('built-in/Sum',[sys,'/',['Rician noise',13,'generator/Sum']])
set_param([sys,'/',['Rician noise',13,'generator/Sum']],...
		'position',[245,55,265,75])

add_block('built-in/S-Function',[sys,'/',['Rician noise',13,'generator/Array',13,'function']])
set_param([sys,'/',['Rician noise',13,'generator/Array',13,'function']],...
		'function name','arysin',...
		'parameters','opr',...
		'Mask Display','Array\nFcn',...
		'Mask Type','Array function')
set_param([sys,'/',['Rician noise',13,'generator/Array',13,'function']],...
		'Mask Dialogue','Multi-input/multi-output functions, such as sin, cos, tan,exp,asin, acos,ln,log10,sgn.|Operation (string):',...
		'Mask Translate','opr=@1;')
set_param([sys,'/',['Rician noise',13,'generator/Array',13,'function']],...
		'Mask Help','The vector length of the output is the same as the input.',...
		'Mask Entries','''sqrt''\/',...
		'position',[295,43,370,87])

add_block('built-in/Outport',[sys,'/',['Rician noise',13,'generator/out_1']])
set_param([sys,'/',['Rician noise',13,'generator/out_1']],...
		'position',[410,55,430,75])


%     Subsystem  ['Rician noise',13,'generator/Gaussian noise',13,'generator'].

new_system([sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator']])
set_param([sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator']],'Location',[22,119,370,243])

add_block('built-in/State-Space',[sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator/Matrix',13,'Gain']])
set_param([sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator/Matrix',13,'Gain']],...
		'A','[]',...
		'B','[]',...
		'C','[]',...
		'D','K',...
		'Mask Display','K',...
		'Mask Type','Matrix Gain')
set_param([sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator/Matrix',13,'Gain']],...
		'Mask Dialogue','Matrix Gain.|Gain matrix:',...
		'Mask Translate','K = @1;')
set_param([sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator/Matrix',13,'Gain']],...
		'Mask Help','Multiplies input vector by entered matrix to produce output vector (y=Au).',...
		'Mask Entries','d\/')
set_param([sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator/Matrix',13,'Gain']],...
		'position',[140,61,165,89])

add_block('built-in/White Noise',[sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator/Random',13,'Number']])
set_param([sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator/Random',13,'Number']],...
		'Seed','s',...
		'position',[35,57,80,93])

add_block('built-in/Constant',[sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator/Constant']])
set_param([sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator/Constant']],...
		'Value','m',...
		'position',[140,20,160,40])

add_block('built-in/Sum',[sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator/Sum']])
set_param([sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator/Sum']],...
		'position',[220,60,240,80])

add_block('built-in/Outport',[sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator/out_1']])
set_param([sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator/out_1']],...
		'position',[285,60,305,80])
add_line([sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator']],[165,30;190,30;190,65;215,65])
add_line([sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator']],[245,70;280,70])
add_line([sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator']],[170,75;215,75])
add_line([sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator']],[85,75;135,75])
set_param([sys,'/',['Rician noise',13,'generator/Gaussian noise',13,'generator']],...
		'Mask Display','plot(0,0,100,100,x,y);Gaussian',...
		'Mask Type','Gaussian noise generator')