tsttdma.m

数字通信第四版原书的例程

function [ret,x0,str,ts,xts]=tsttdma(t,x,u,flag);
%TSTTDMA	is the M-file description of the SIMULINK system named TSTTDMA.
%	The block-diagram can be displayed by typing: TSTTDMA.
%
%	SYS=TSTTDMA(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 TSTTDMA 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 TSTTDMA with a FLAG of zero:
%	[SIZES]=TSTTDMA([],[],[],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',[23,76,666,320])
     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', '0.0001')
set_param(sys,'Max step size', '10')
set_param(sys,'Relative error','1e-3')
set_param(sys,'Return vars',   '')

add_block('built-in/Mux',[sys,'/','Mux'])
set_param([sys,'/','Mux'],...
		'hide name',0,...
		'inputs','3',...
		'position',[125,83,160,117])

add_block('built-in/Signal Generator',[sys,'/',['Signal',13,'generator1']])
set_param([sys,'/',['Signal',13,'generator1']],...
		'ForeGround',4,...
		'hide name',0,...
		'Peak','1.000000',...
		'Peak Range','2.000000',...
		'Freq','3.000000',...
		'Freq Range','5.000000',...
		'Wave','Saw',...
		'Units','Rads')
set_param([sys,'/',['Signal',13,'generator1']],...
		'position',[40,83,85,117])

add_block('built-in/Signal Generator',[sys,'/',['Signal',13,'generator']])
set_param([sys,'/',['Signal',13,'generator']],...
		'ForeGround',2,...
		'hide name',0,...
		'Peak','1.000000',...
		'Peak Range','2.000000',...
		'Freq','2.000000',...
		'Freq Range','5.000000',...
		'Wave','Sin',...
		'Units','Rads')
set_param([sys,'/',['Signal',13,'generator']],...
		'position',[40,18,85,52])


%     Subsystem  ['Digital-TDMA',13,'demux'].

new_system([sys,'/',['Digital-TDMA',13,'demux']])
set_param([sys,'/',['Digital-TDMA',13,'demux']],'Location',[7,777,413,924])

add_block('built-in/Inport',[sys,'/',['Digital-TDMA',13,'demux/in_1']])
set_param([sys,'/',['Digital-TDMA',13,'demux/in_1']],...
		'position',[60,20,80,40])


%     Subsystem  ['Digital-TDMA',13,'demux/Register-shift'].

new_system([sys,'/',['Digital-TDMA',13,'demux/Register-shift']])
set_param([sys,'/',['Digital-TDMA',13,'demux/Register-shift']],'Location',[19,610,374,740])

add_block('built-in/Demux',[sys,'/',['Digital-TDMA',13,'demux/Register-shift/Demux']])
set_param([sys,'/',['Digital-TDMA',13,'demux/Register-shift/Demux']],...
		'outputs','[len_rg, 1]',...
		'position',[260,55,300,90])

add_block('built-in/S-Function',[sys,'/',['Digital-TDMA',13,'demux/Register-shift/S-function']])
set_param([sys,'/',['Digital-TDMA',13,'demux/Register-shift/S-function']],...
		'function name','regshift',...
		'parameters','shft_out, thrhld',...
		'position',[150,65,200,85])

add_block('built-in/Mux',[sys,'/',['Digital-TDMA',13,'demux/Register-shift/Mux']])
set_param([sys,'/',['Digital-TDMA',13,'demux/Register-shift/Mux']],...
		'inputs','2',...
		'position',[80,56,115,89])

add_block('built-in/Outport',[sys,'/',['Digital-TDMA',13,'demux/Register-shift/out_1']])
set_param([sys,'/',['Digital-TDMA',13,'demux/Register-shift/out_1']],...
		'position',[330,55,350,75])

add_block('built-in/Outport',[sys,'/',['Digital-TDMA',13,'demux/Register-shift/out_2']])
set_param([sys,'/',['Digital-TDMA',13,'demux/Register-shift/out_2']],...
		'Port','2',...
		'position',[330,70,350,90])

add_block('built-in/Inport',[sys,'/',['Digital-TDMA',13,'demux/Register-shift/in_1']])
set_param([sys,'/',['Digital-TDMA',13,'demux/Register-shift/in_1']],...
		'position',[30,55,50,75])

add_block('built-in/Inport',[sys,'/',['Digital-TDMA',13,'demux/Register-shift/in_2']])
set_param([sys,'/',['Digital-TDMA',13,'demux/Register-shift/in_2']],...
		'Port','2',...
		'position',[30,70,50,90])
add_line([sys,'/',['Digital-TDMA',13,'demux/Register-shift']],[120,75;145,75])
add_line([sys,'/',['Digital-TDMA',13,'demux/Register-shift']],[205,75;255,75])
add_line([sys,'/',['Digital-TDMA',13,'demux/Register-shift']],[305,65;325,65])
add_line([sys,'/',['Digital-TDMA',13,'demux/Register-shift']],[305,80;325,80])
add_line([sys,'/',['Digital-TDMA',13,'demux/Register-shift']],[55,65;75,65])
add_line([sys,'/',['Digital-TDMA',13,'demux/Register-shift']],[55,80;75,80])
set_param([sys,'/',['Digital-TDMA',13,'demux/Register-shift']],...
		'Mask Display','Register\nshift',...
		'Mask Type','Register-shift')
set_param([sys,'/',['Digital-TDMA',13,'demux/Register-shift']],...
		'Mask Dialogue','Store and shift the input from 1st port by raising edge of the pulse from second port.|Vector specify ouput delay length(non-negative integer):|Threshold for the pulse signal from the 2nd port:')
set_param([sys,'/',['Digital-TDMA',13,'demux/Register-shift']],...
		'Mask Translate','shft_out=@1; thrhld=@2; len_rg=length(@1);')
set_param([sys,'/',['Digital-TDMA',13,'demux/Register-shift']],...
		'Mask Help','This block store the 1st inport signal at the raising edge of 2nd inport pulse. The 1st outport outputs a vector with its size same as the the size of the 1st entree of this block. The maximum delay is the register size of this block. The second outport output a positive pulse at the begining of entire register refreshment.')
set_param([sys,'/',['Digital-TDMA',13,'demux/Register-shift']],...
		'Mask Entries','[N:-1:1]\/.1\/')


%     Finished composite block ['Digital-TDMA',13,'demux/Register-shift'].

set_param([sys,'/',['Digital-TDMA',13,'demux/Register-shift']],...
		'position',[150,18,225,62])

add_block('built-in/Outport',[sys,'/',['Digital-TDMA',13,'demux/out_1']])
set_param([sys,'/',['Digital-TDMA',13,'demux/out_1']],...
		'position',[335,20,355,40])


%     Subsystem  ['Digital-TDMA',13,'demux/Pulses deivide',13,'same sample time'].

new_system([sys,'/',['Digital-TDMA',13,'demux/Pulses deivide',13,'same sample time']])
set_param([sys,'/',['Digital-TDMA',13,'demux/Pulses deivide',13,'same sample time']],'Location',[55,192,283,286])

add_block('built-in/Outport',[sys,'/',['Digital-TDMA',13,'demux/Pulses deivide',13,'same sample time/Outport']])
set_param([sys,'/',['Digital-TDMA',13,'demux/Pulses deivide',13,'same sample time/Outport']],...
		'position',[160,35,180,55])

add_block('built-in/S-Function',[sys,'/',['Digital-TDMA',13,'demux/Pulses deivide',13,'same sample time/S-function1']])
set_param([sys,'/',['Digital-TDMA',13,'demux/Pulses deivide',13,'same sample time/S-function1']],...
		'function name','homopuls',...
		'parameters','samp_time, out_divid, offset',...
		'position',[40,31,105,59])
add_line([sys,'/',['Digital-TDMA',13,'demux/Pulses deivide',13,'same sample time']],[110,45;155,45])
set_param([sys,'/',['Digital-TDMA',13,'demux/Pulses deivide',13,'same sample time']],...
		'Mask Display','Vector\nPulse',...
		'Mask Type','Pulse generator')
set_param([sys,'/',['Digital-TDMA',13,'demux/Pulses deivide',13,'same sample time']],...
		'Mask Dialogue','Vector pulses with sample rate of each pulse as Sample_time ./Divider. |Sample time (scalar, sec):|Divider (integer vector):|Offset (have same dimension as Divider:')
set_param([sys,'/',['Digital-TDMA',13,'demux/Pulses deivide',13,'same sample time']],...
		'Mask Translate','samp_time=@1;out_divid=@2;offset=@3;')
set_param([sys,'/',['Digital-TDMA',13,'demux/Pulses deivide',13,'same sample time']],...
		'Mask Help','This block generator a vector pulses. The output length is the same as the vector defined in "Divider". The ith element of the output has the sample time Sample_time/Divider(i). All elements in "Divider" must be integers.')
set_param([sys,'/',['Digital-TDMA',13,'demux/Pulses deivide',13,'same sample time']],...
		'Mask Entries','td\/N\/0\/')


%     Finished composite block ['Digital-TDMA',13,'demux/Pulses deivide',13,'same sample time'].

set_param([sys,'/',['Digital-TDMA',13,'demux/Pulses deivide',13,'same sample time']],...
		'position',[35,86,100,124])

add_block('built-in/Zero-Order Hold',[sys,'/',['Digital-TDMA',13,'demux/Zero-Order',13,'Hold']])
set_param([sys,'/',['Digital-TDMA',13,'demux/Zero-Order',13,'Hold']],...
		'Sample time','td',...
		'position',[255,14,290,46])
add_line([sys,'/',['Digital-TDMA',13,'demux']],[85,30;145,30])
add_line([sys,'/',['Digital-TDMA',13,'demux']],[105,105;120,105;120,50;145,50])
add_line([sys,'/',['Digital-TDMA',13,'demux']],[230,30;250,30])
add_line([sys,'/',['Digital-TDMA',13,'demux']],[295,30;330,30])
set_param([sys,'/',['Digital-TDMA',13,'demux']],...
		'Mask Display','D-TDMA\ndemux',...
		'Mask Type','Reverse digital TDMA')
set_param([sys,'/',['Digital-TDMA',13,'demux']],...
		'Mask Dialogue','Input a scalar digital signal. Output a vector of a down-sampled digital signal.|Output symbol sample time (sec):|Output vector length:',...
		'Mask Translate','td=@1;N=@2;')
set_param([sys,'/',['Digital-TDMA',13,'demux']],...
		'Mask Help','This block inputs a scalar signal and outputs a down-sampled vector signal. The output sample time is T_out and vector length is N_out. The sample time for the input signal is T_out/N_out. For the input signal, a T_out time period is partitioned into N_out sections evenly in the time domain. Each element in the output vector outputs one of the partitioned sections.')
set_param([sys,'/',['Digital-TDMA',13,'demux']],...
		'Mask Entries','.1\/3\/')


%     Finished composite block ['Digital-TDMA',13,'demux'].

set_param([sys,'/',['Digital-TDMA',13,'demux']],...
		'hide name',0,...
		'position',[315,78,395,122])

add_block('built-in/Demux',[sys,'/','Demux'])
set_param([sys,'/','Demux'],...
		'hide name',0,...
		'outputs','3',...
		'position',[430,82,470,118])


%     Subsystem  ['Digital-TDMA',13,'mux'].

new_system([sys,'/',['Digital-TDMA',13,'mux']])
set_param([sys,'/',['Digital-TDMA',13,'mux']],'Location',[7,588,411,722])

add_block('built-in/Inport',[sys,'/',['Digital-TDMA',13,'mux/in_1']])
set_param([sys,'/',['Digital-TDMA',13,'mux/in_1']],...
		'position',[115,20,135,40])

add_block('built-in/Outport',[sys,'/',['Digital-TDMA',13,'mux/out_1']])
set_param([sys,'/',['Digital-TDMA',13,'mux/out_1']],...
		'position',[310,55,330,75])


%     Subsystem  ['Digital-TDMA',13,'mux/Triggered',13,'buffer down'].