tddps3cd.m

数字通信第四版原书的例程

function [ret,x0,str,ts,xts]=tddps3cd(t,x,u,flag);
%TDDPS3CD	is the M-file description of the SIMULINK system named TDDPS3CD.
%	The block-diagram can be displayed by typing: TDDPS3CD.
%
%	SYS=TDDPS3CD(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 TDDPS3CD 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 TDDPS3CD with a FLAG of zero:
%	[SIZES]=TDDPS3CD([],[],[],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',[119,448,796,567])
     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', 'ts')
set_param(sys,'Max step size', 'ts')
set_param(sys,'Relative error','1e-3')
set_param(sys,'Return vars',   '')
set_param(sys,'Load callback','ts=.01;td=.2;Fc=100/2/pi;M=16;');


%     Subsystem  'Error rate1'.

new_system([sys,'/','Error rate1'])
set_param([sys,'/','Error rate1'],'Location',[255,368,509,510])

add_block('built-in/S-Function',[sys,'/','Error rate1/S-function'])
set_param([sys,'/','Error rate1/S-function'],...
		'function name','sbiterr',...
		'parameters','num_lin, K, TDelay, Sample',...
		'position',[130,52,195,78])

add_block('built-in/Mux',[sys,'/','Error rate1/Mux'])
set_param([sys,'/','Error rate1/Mux'],...
		'inputs','2',...
		'position',[65,46,100,79])

add_block('built-in/Inport',[sys,'/','Error rate1/in_1'])
set_param([sys,'/','Error rate1/in_1'],...
		'position',[15,45,35,65])

add_block('built-in/Inport',[sys,'/','Error rate1/in_2'])
set_param([sys,'/','Error rate1/in_2'],...
		'Port','2',...
		'position',[15,60,35,80])
add_line([sys,'/','Error rate1'],[105,65;125,65])
add_line([sys,'/','Error rate1'],[40,55;60,55])
add_line([sys,'/','Error rate1'],[40,70;60,70])
set_param([sys,'/','Error rate1'],...
		'Mask Display','Error\nmeter',...
		'Mask Type','Symbol/bit error counter')
set_param([sys,'/','Error rate1'],...
		'Mask Dialogue','Use the input data from the 1st port as the reference signal to detect the number of errors and error rate of the 2nd port inputted signal.|Bit per symbol:|Number of digits on display:|Delay between input (1st port) and output (2nd port):|Sampling time (sec):')
set_param([sys,'/','Error rate1'],...
		'Mask Translate','K=@1;num_lin=@2;TDelay=@3;Sample=@4;')
set_param([sys,'/','Error rate1'],...
		'Mask Help','The signal from the first port must be a scalar. The second input port can be a vector with a same-time delay to the input signal. The comparison happens only at the sampling point.')
set_param([sys,'/','Error rate1'],...
		'Mask Entries','ceil(log10(M)/log10(2))\/20\/td\/td\/')


%     Finished composite block 'Error rate1'.

set_param([sys,'/','Error rate1'],...
		'hide name',0,...
		'position',[470,33,550,77])


%     Subsystem  ['Arbitrary-map',13,'QASK demod1'].

new_system([sys,'/',['Arbitrary-map',13,'QASK demod1']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1']],'Location',[680,320,996,450])


%     Subsystem  ['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap'].

new_system([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],'Location',[45,449,594,684])

add_block('built-in/Constant',[sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/imag_pt']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/imag_pt']],...
		'BackGround',5,...
		'Value','y2',...
		'position',[165,169,190,191])

add_block('built-in/Constant',[sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/real_pt']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/real_pt']],...
		'BackGround',3,...
		'Value','y1',...
		'position',[170,84,195,106])

add_block('built-in/Outport',[sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/out_1']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/out_1']],...
		'position',[495,85,515,105])

add_block('built-in/S-Function',[sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/Minimum1']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/Minimum1']],...
		'function name','arymimai',...
		'parameters','''min''',...
		'position',[415,85,475,105])

add_block('built-in/Sum',[sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/Sum2']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/Sum2']],...
		'position',[370,78,390,107])

add_block('built-in/Product',[sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/Product1']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/Product1']],...
		'position',[300,130,325,150])

add_block('built-in/Product',[sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/Product']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/Product']],...
		'position',[300,45,325,65])

add_block('built-in/Sum',[sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/Sum6']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/Sum6']],...
		'ForeGround',4,...
		'inputs','+-',...
		'position',[230,123,250,152])

add_block('built-in/Sum',[sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/Sum1']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/Sum1']],...
		'ForeGround',2,...
		'inputs','+-',...
		'position',[230,38,250,67])

add_block('built-in/Zero-Order Hold',[sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/Zero-Order',13,'Hold1']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/Zero-Order',13,'Hold1']],...
		'ForeGround',4,...
		'Sample time','td',...
		'position',[120,114,155,146])

add_block('built-in/Inport',[sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/imag']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/imag']],...
		'Port','2',...
		'position',[45,120,65,140])

add_block('built-in/Inport',[sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/real']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/real']],...
		'position',[45,35,65,55])

add_block('built-in/Zero-Order Hold',[sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/Zero-Order',13,'Hold']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap/Zero-Order',13,'Hold']],...
		'ForeGround',2,...
		'Sample time','td',...
		'position',[120,29,155,61])
add_line([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],[480,95;490,95])
add_line([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],[395,95;410,95])
add_line([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],[330,140;340,140;340,100;365,100])
add_line([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],[330,55;340,55;340,85;365,85])
add_line([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],[255,140;270,140;270,135;295,135])
add_line([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],[270,140;270,145;295,145])
add_line([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],[255,55;270,55;270,50;295,50])
add_line([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],[270,55;270,60;295,60])
add_line([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],[195,180;205,180;205,145;225,145])
add_line([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],[160,130;225,130])
add_line([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],[160,45;225,45])
add_line([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],[200,95;205,95;205,60;225,60])
add_line([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],[70,130;115,130])
add_line([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],[70,45;115,45])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],...
		'Mask Display','QASK\nA-demap',...
		'Mask Type','QASK A-demap')
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],...
		'Mask Dialogue','Reverse the QASK map. Input in-phase\nand quadrature components from the\ntwo inputs. Output demapped signal.|Constellation for in-phase component:|Constellation for quadrature component:|Symbol interval and offset (sec):')
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],...
		'Mask Translate','y1=@1;y2=@2;td=@3;')
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],...
		'Mask Help','This block demaps a QASK mapped signal using user defined arbitrary constellation. You can place this block after a QAM demodulation block. The in-phase and quadrature constellation vectors must have the same length, which equals to M, the M-ary number of the QASK. The output symbols are integers in the range [0, M-1]. ')
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],...
		'Mask Entries','y1\/y2\/td\/')


%     Finished composite block ['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap'].

set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QASK',13,'arbitrary-demap']],...
		'hide name',0,...
		'position',[175,38,255,82])


%     Subsystem  ['Arbitrary-map',13,'QASK demod1/QADM',13,'passband3'].

new_system([sys,'/',['Arbitrary-map',13,'QASK demod1/QADM',13,'passband3']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QADM',13,'passband3']],'Location',[194,478,738,741])

add_block('built-in/Clock',[sys,'/',['Arbitrary-map',13,'QASK demod1/QADM',13,'passband3/Clock']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QADM',13,'passband3/Clock']],...
		'position',[60,110,80,130])

add_block('built-in/Gain',[sys,'/',['Arbitrary-map',13,'QASK demod1/QADM',13,'passband3/Gain']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QADM',13,'passband3/Gain']],...
		'Gain','Fc',...
		'position',[110,101,160,139])

add_block('built-in/Filter',[sys,'/',['Arbitrary-map',13,'QASK demod1/QADM',13,'passband3/Filter1']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QADM',13,'passband3/Filter1']],...
		'Numerator','num',...
		'Denominator','den',...
		'Sample time','ts',...
		'position',[390,166,445,204])

add_block('built-in/Filter',[sys,'/',['Arbitrary-map',13,'QASK demod1/QADM',13,'passband3/Filter']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QADM',13,'passband3/Filter']],...
		'Numerator','num',...
		'Denominator','den',...
		'Sample time','ts',...
		'position',[390,61,445,99])

add_block('built-in/Gain',[sys,'/',['Arbitrary-map',13,'QASK demod1/QADM',13,'passband3/Gain1']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QADM',13,'passband3/Gain1']],...
		'Gain','2',...
		'position',[270,118,295,142])

add_block('built-in/Inport',[sys,'/',['Arbitrary-map',13,'QASK demod1/QADM',13,'passband3/in_1']])
set_param([sys,'/',['Arbitrary-map',13,'QASK demod1/QADM',13,'passband3/in_1']],...
		'position',[230,120,250,140])

add_block('built-in/Note',[sys,'/',['Arbitrary-map',13,'QASK demod1/QADM',13,'passband3/Ref: Hambley: An Intro to Comm. Systems. pp72']])