MATLAB.rar_AM-FM-modulation.rar_brown9tr_matlab通信_www.matlab.c_通

function [ret,x0,str,ts,xts]=askwnymf(t,x,u,flag); %ASKWNYMF is the M-file description of the SIMULINK system named ASKWNYMF. % The block-diagram can be displayed by typing: ASKWNYMF. % % SYS=ASKWNYMF(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 ASKWNYMF 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 ASKWNYMF with a FLAG of zero: % [SIZES]=ASKWNYMF([],[],[],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',[196,42,1260,318]) 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', '.000001') set_param(sys,'Max step size', '10') set_param(sys,'Relative error','1e-6') set_param(sys,'Return vars', '') % Subsystem 'Kanal'. new_system([sys,'/','Kanal']) set_param([sys,'/','Kanal'],'Location',[11,262,273,408]) add_block('built-in/Inport',[sys,'/','Kanal/in_1']) set_param([sys,'/','Kanal/in_1'],... 'position',[45,10,65,30]) add_block('built-in/Outport',[sys,'/','Kanal/out_1']) set_param([sys,'/','Kanal/out_1'],... 'position',[200,55,220,75]) add_block('built-in/Sum',[sys,'/','Kanal/Sum']) set_param([sys,'/','Kanal/Sum'],... 'position',[150,55,170,75]) % Subsystem ['Kanal/Gaussian noise',13,'generator']. new_system([sys,'/',['Kanal/Gaussian noise',13,'generator']]) set_param([sys,'/',['Kanal/Gaussian noise',13,'generator']],'Location',[22,119,370,243]) add_block('built-in/State-Space',[sys,'/',['Kanal/Gaussian noise',13,'generator/Matrix',13,'Gain']]) set_param([sys,'/',['Kanal/Gaussian noise',13,'generator/Matrix',13,'Gain']],... 'A','[]',... 'B','[]',... 'C','[]',... 'D','K',... 'Mask Display','K',... 'Mask Type','Matrix Gain',... 'Mask Dialogue','Matrix Gain.|Gain matrix:') set_param([sys,'/',['Kanal/Gaussian noise',13,'generator/Matrix',13,'Gain']],... 'Mask Translate','K = @1;',... 'Mask Help','Multiplies input vector by entered matrix to produce output vector (y=Au).',... 'Mask Entries','d\/') set_param([sys,'/',['Kanal/Gaussian noise',13,'generator/Matrix',13,'Gain']],... 'position',[140,61,165,89]) add_block('built-in/White Noise',[sys,'/',['Kanal/Gaussian noise',13,'generator/Random',13,'Number']]) set_param([sys,'/',['Kanal/Gaussian noise',13,'generator/Random',13,'Number']],... 'Seed','s',... 'position',[35,57,80,93]) add_block('built-in/Constant',[sys,'/',['Kanal/Gaussian noise',13,'generator/Constant']]) set_param([sys,'/',['Kanal/Gaussian noise',13,'generator/Constant']],... 'Value','m',... 'position',[140,20,160,40]) add_block('built-in/Sum',[sys,'/',['Kanal/Gaussian noise',13,'generator/Sum']]) set_param([sys,'/',['Kanal/Gaussian noise',13,'generator/Sum']],... 'position',[220,60,240,80]) add_block('built-in/Outport',[sys,'/',['Kanal/Gaussian noise',13,'generator/out_1']]) set_param([sys,'/',['Kanal/Gaussian noise',13,'generator/out_1']],... 'position',[285,60,305,80]) add_line([sys,'/',['Kanal/Gaussian noise',13,'generator']],[165,30;190,30;190,65;215,65]) add_line([sys,'/',['Kanal/Gaussian noise',13,'generator']],[245,70;280,70]) add_line([sys,'/',['Kanal/Gaussian noise',13,'generator']],[170,75;215,75]) add_line([sys,'/',['Kanal/Gaussian noise',13,'generator']],[85,75;135,75]) set_param([sys,'/',['Kanal/Gaussian noise',13,'generator']],... 'Mask Display','plot(0,0,100,100,x,y);Gaussian',... 'Mask Type','Gaussian noise generator') set_param([sys,'/',['Kanal/Gaussian noise',13,'generator']],... 'Mask Dialogue','Generate Gaussian distributed noise with\ngiven mean and variance value.|Mean value:|Variance (vector or matrix):|Initial seed:') set_param([sys,'/',['Kanal/Gaussian noise',13,'generator']],... 'Mask Translate','m=@1;d=@2;s=@3;[m,d,s]=gwnoise(m,d,s);[x,y]=srcsicon(3);') set_param([sys,'/',['Kanal/Gaussian noise',13,'generator']],... 'Mask Help','When the mean value and seed are vectors, the output of this block is a vector. The length of the vector is the same as the length of the mean value vector or the length of the seed. When the variance entry is a vector, the variance is a diagonal matrix.') set_param([sys,'/',['Kanal/Gaussian noise',13,'generator']],... 'Mask Entries','m\/d\/s\/') % Finished composite block ['Kanal/Gaussian noise',13,'generator']. set_param([sys,'/',['Kanal/Gaussian noise',13,'generator']],... 'position',[25,48,105,92]) add_line([sys,'/','Kanal'],[175,65;195,65]) add_line([sys,'/','Kanal'],[70,20;115,20;115,60;145,60]) add_line([sys,'/','Kanal'],[110,70;145,70]) set_param([sys,'/','Kanal'],... 'Mask Display','plot(0,0,100,100,x,y);AWGN',... 'Mask Type','AWGN channel, fixed parameter') set_param([sys,'/','Kanal'],... 'Mask Dialogue','Additive white Gaussian noise channel\nwith fixed mean and variance.|Mean value:|Variance (std^2):|Initial Seed:',... 'Mask Translate','m=@1;d=@2;s=@3;[m,d,s]=gwnoise(m,d,s);[x,y]=chanicon;') set_param([sys,'/','Kanal'],... 'Mask Help','This block adds white Gaussian noise to the input signal. The mean and the variance can be a scalar or vector with the same length as the input signal.',... 'Mask Entries','0\/.001\/12345\/') % Finished composite block 'Kanal'. set_param([sys,'/','Kanal'],... 'position',[480,113,560,157]) % Subsystem 'MASK map'. new_system([sys,'/','MASK map']) set_param([sys,'/','MASK map'],'Location',[520,162,902,335]) add_block('built-in/Constant',[sys,'/','MASK map/Gain diff']) set_param([sys,'/','MASK map/Gain diff'],... 'Value','Ac',... 'position',[180,96,215,124]) add_block('built-in/Sum',[sys,'/','MASK map/Sum1']) set_param([sys,'/','MASK map/Sum1'],... 'inputs','+-',... 'position',[250,63,270,87]) add_block('built-in/Gain',[sys,'/','MASK map/Gain']) set_param([sys,'/','MASK map/Gain'],... 'Gain','Kc',... 'position',[180,25,220,55]) add_block('built-in/Inport',[sys,'/','MASK map/in_1']) set_param([sys,'/','MASK map/in_1'],... 'position',[40,30,60,50]) add_block('built-in/Zero-Order Hold',[sys,'/',['MASK map/Zero-Order',13,'Hold']]) set_param([sys,'/',['MASK map/Zero-Order',13,'Hold']],... 'Sample time','td',... 'position',[100,24,135,56]) add_block('built-in/Outport',[sys,'/','MASK map/out_1']) set_param([sys,'/','MASK map/out_1'],... 'position',[315,65,335,85]) add_line([sys,'/','MASK map'],[140,40;175,40]) add_line([sys,'/','MASK map'],[65,40;95,40]) add_line([sys,'/','MASK map'],[275,75;310,75]) add_line([sys,'/','MASK map'],[220,110;230,110;230,80;245,80]) add_line([sys,'/','MASK map'],[225,40;230,40;230,70;245,70]) set_param([sys,'/','MASK map'],... 'Mask Display','MASK\nmap',... 'Mask Type','MASK map') set_param([sys,'/','MASK map'],... 'Mask Dialogue','Map a digital symbol onto an analog\nsignal in the range [-1, 1] using M-ary\namplitude shift keying modulation mapping.|M-ar