qamnrzbw.m

现代通信系统（prokis）的所有matlab源程序,对初学者很有帮助的。

function [ret,x0,str,ts,xts]=qamnrzbw(t,x,u,flag);
%QAMNRZBW	is the M-file description of the SIMULINK system named QAMNRZBW.
%	The block-diagram can be displayed by typing: QAMNRZBW.
%
%	SYS=QAMNRZBW(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 QAMNRZBW 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 QAMNRZBW with a FLAG of zero:
%	[SIZES]=QAMNRZBW([],[],[],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',[251,43,1260,321])
     open_system(sys)
end;
set_param(sys,'algorithm',     'RK-45')
set_param(sys,'Start time',    '0.0')
set_param(sys,'Stop time',     '999999')
set_param(sys,'Min step size', '0.000001')
set_param(sys,'Max step size', '10')
set_param(sys,'Relative error','1e-3')
set_param(sys,'Return vars',   '')


%     Subsystem  'Empf鋘ger'.

new_system([sys,'/','Empf鋘ger'])
set_param([sys,'/','Empf鋘ger'],'Location',[251,42,1259,320])

add_block('built-in/Product',[sys,'/','Empf鋘ger/Product'])
set_param([sys,'/','Empf鋘ger/Product'],...
		'hide name',0,...
		'position',[300,74,330,101])

add_block('built-in/Scope',[sys,'/','Empf鋘ger/x_eI(t)'])
set_param([sys,'/','Empf鋘ger/x_eI(t)'],...
		'orientation',3,...
		'Vgain','1.500000',...
		'Hgain','25.000000',...
		'Vmax','3.000000',...
		'Hmax','50.000000',...
		'Window',[0,440,640,540],...
		'position',[350,20,380,50])

add_block('built-in/Fcn',[sys,'/','Empf鋘ger/Fcn'])
set_param([sys,'/','Empf鋘ger/Fcn'],...
		'hide name',0,...
		'Expr','2*cos(4*pi*u)',...
		'position',[185,119,265,141])

add_block('built-in/Fcn',[sys,'/','Empf鋘ger/Fcn1'])
set_param([sys,'/','Empf鋘ger/Fcn1'],...
		'hide name',0,...
		'Expr','-2*sin(4*pi*u)',...
		'position',[185,159,265,181])

add_block('built-in/Scope',[sys,'/','Empf鋘ger/x_eQ(t)'])
set_param([sys,'/','Empf鋘ger/x_eQ(t)'],...
		'orientation',3,...
		'Vgain','1.500000',...
		'Hgain','25.000000',...
		'Vmax','3.000000',...
		'Hmax','50.000000',...
		'Window',[640,440,1280,540],...
		'position',[350,155,380,185])

add_block('built-in/Clock',[sys,'/','Empf鋘ger/Clock'])
set_param([sys,'/','Empf鋘ger/Clock'],...
		'hide name',0,...
		'position',[145,140,165,160])

add_block('built-in/Product',[sys,'/','Empf鋘ger/Product1'])
set_param([sys,'/','Empf鋘ger/Product1'],...
		'hide name',0,...
		'position',[295,213,325,237])

add_block('built-in/Inport',[sys,'/',['Empf鋘ger/gest鰎tes',13,'16-QAM-',13,'Signal']])
set_param([sys,'/',['Empf鋘ger/gest鰎tes',13,'16-QAM-',13,'Signal']],...
		'position',[25,145,45,165])

add_block('built-in/Scope',[sys,'/','Empf鋘ger/d_eI(t)'])
set_param([sys,'/','Empf鋘ger/d_eI(t)'],...
		'orientation',3,...
		'Vgain','1.500000',...
		'Hgain','25.000000',...
		'Vmax','3.000000',...
		'Hmax','50.000000',...
		'Window',[0,540,640,640],...
		'position',[540,20,570,50])

add_block('built-in/Scope',[sys,'/','Empf鋘ger/d_eQ(t)'])
set_param([sys,'/','Empf鋘ger/d_eQ(t)'],...
		'orientation',3,...
		'Vgain','1.500000',...
		'Hgain','25.000000',...
		'Vmax','3.000000',...
		'Hmax','50.000000',...
		'Window',[640,540,1280,640],...
		'position',[540,155,570,185])

add_block('built-in/Scope',[sys,'/','Empf鋘ger/r(t)'])
set_param([sys,'/','Empf鋘ger/r(t)'],...
		'orientation',3,...
		'Vgain','1.500000',...
		'Hgain','25.000000',...
		'Vmax','3.000000',...
		'Hmax','50.000000',...
		'Window',[320,340,960,440],...
		'position',[60,70,90,100])

add_block('built-in/Outport',[sys,'/',['Empf鋘ger/empfangenes',13,'Symbol']])
set_param([sys,'/',['Empf鋘ger/empfangenes',13,'Symbol']],...
		'position',[950,140,970,160])


%     Subsystem  'Empf鋘ger/Doppelklick4'.

new_system([sys,'/','Empf鋘ger/Doppelklick4'])
set_param([sys,'/','Empf鋘ger/Doppelklick4'],'Location',[136,230,381,439])
set_param([sys,'/','Empf鋘ger/Doppelklick4'],...
		'Mask Display','Schlie遝 Empf鋘ger',...
		'Mask Type','schlie遝n',...
		'Mask Dialogue','eval(''closempf'')')


%     Finished composite block 'Empf鋘ger/Doppelklick4'.

set_param([sys,'/','Empf鋘ger/Doppelklick4'],...
		'BackGround',7,...
		'hide name',0,...
		'Font Angle','italic',...
		'position',[815,20,950,46])

add_block('built-in/Scope',[sys,'/','Empf鋘ger/v(t)'])
set_param([sys,'/','Empf鋘ger/v(t)'],...
		'orientation',3,...
		'Vgain','15.000000',...
		'Hgain','25.000000',...
		'Vmax','30.000000',...
		'Hmax','50.000000',...
		'Window',[320,740,960,840],...
		'position',[895,70,925,100])


%     Subsystem  ['Empf鋘ger/Signalraum-',13,'decodierung'].

new_system([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung']])
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung']],'Location',[57,374,831,674])

add_block('built-in/Zero-Order Hold',[sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/Zero-Order',13,'Hold']])
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/Zero-Order',13,'Hold']],...
		'Sample time','td',...
		'position',[135,24,170,56])

add_block('built-in/Inport',[sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/in_1']])
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/in_1']],...
		'position',[60,30,80,50])

add_block('built-in/Zero-Order Hold',[sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/Zero-Order',13,'Hold1']])
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/Zero-Order',13,'Hold1']],...
		'Sample time','td',...
		'position',[135,149,170,181])

add_block('built-in/Inport',[sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/in_2']])
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/in_2']],...
		'Port','2',...
		'position',[60,155,80,175])

add_block('built-in/Sum',[sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/Sum5']])
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/Sum5']],...
		'ForeGround',2,...
		'position',[470,153,490,182])


%     Subsystem  ['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table'].

new_system([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table']])
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table']],'Location',[436,148,718,302])

add_block('built-in/Inport',[sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table/y0']])
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table/y0']],...
		'Port','2',...
		'position',[20,80,40,100])

add_block('built-in/Outport',[sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table/table out']])
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table/table out']],...
		'position',[215,55,235,75])

add_block('built-in/Inport',[sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table/x0']])
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table/x0']],...
		'position',[20,25,40,45])

add_block('built-in/S-Function',[sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table/S-function']])
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table/S-function']],...
		'function name','sftable2',...
		'parameters','xindex, yindex, table',...
		'position',[140,52,190,78])

add_block('built-in/Mux',[sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table/Mux']])
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table/Mux']],...
		'inputs','2',...
		'position',[90,46,120,79])
add_line([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table']],[45,90;65,90;65,70;85,70])
add_line([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table']],[195,65;210,65])
add_line([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table']],[45,35;65,35;65,55;85,55])
add_line([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table']],[125,65;135,65])
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table']],...
		'Mask Display','plot(-10,-10,110,110,[90,50,10],[90,40,30],[90,50,10],[50,26,20],[90,50,10],[22,13,10])',...
		'Mask Type','2-D Table Lookup')
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table']],...
		'Mask Dialogue','Two Dimensional Table Lookup\nThe first input corresponds to X Index and the second input corresponds to the Y Index|X Index|Y Index|Table')
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table']],...
		'Mask Translate','xindex=@1; yindex=@2; table=@3; sftab2chk(xindex,yindex,table);')
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table']],...
		'Mask Help','This block returns a linearly interpolated intersection from the table using the X index (which corresponds to the rows of the table) and the Y index (which corresponds to the columns of the table).  Extrapolation is used.')
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table']],...
		'Mask Entries','x\/y\/tab\/')


%     Finished composite block ['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table'].

set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/2-D Table']],...
		'position',[515,68,545,92])

add_block('built-in/Sum',[sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/Sum3']])
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/Sum3']],...
		'ForeGround',2,...
		'inputs','+-',...
		'position',[580,73,600,102])

add_block('built-in/Saturation',[sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/Saturation']])
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/Saturation']],...
		'Lower Limit','0',...
		'Upper Limit','N-1',...
		'position',[630,78,660,102])

add_block('built-in/Outport',[sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/out_1']])
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/out_1']],...
		'position',[685,80,705,100])

add_block('built-in/Sum',[sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/Sum4']])
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/Sum4']],...
		'ForeGround',2,...
		'position',[470,58,490,87])

add_block('built-in/Sum',[sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/Sum1']])
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/Sum1']],...
		'ForeGround',2,...
		'inputs','+-',...
		'position',[280,33,300,62])

add_block('built-in/Sum',[sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/Sum2']])
set_param([sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/Sum2']],...
		'ForeGround',2,...
		'inputs','+-',...
		'position',[290,158,310,187])

add_block('built-in/S-Function',[sys,'/',['Empf鋘ger/Signalraum-',13,'decodierung/Minimum']])