comcdrs.m

数字通信第四版原书的例程

%     Finished composite block ['Integer sequence',13,'RS encode/Register-shift'].

set_param([sys,'/',['Integer sequence',13,'RS encode/Register-shift']],...
		'ForeGround',3,...
		'position',[225,40,280,80])

add_block('built-in/Inport',[sys,'/',['Integer sequence',13,'RS encode/in_1']])
set_param([sys,'/',['Integer sequence',13,'RS encode/in_1']],...
		'position',[115,40,135,60])


%     Subsystem  ['Integer sequence',13,'RS encode/Integer vector',13,'RS encode'].

new_system([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode']])
set_param([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode']],'Location',[621,369,1006,585])

add_block('built-in/Memory',[sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode/Memory']])
set_param([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode/Memory']],...
		'orientation',2,...
		'x0','zeros(1,n)',...
		'position',[305,105,345,135])

add_block('built-in/Switch',[sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode/Switch']])
set_param([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode/Switch']],...
		'Threshold','0.5',...
		'position',[305,54,335,86])

add_block('built-in/S-Function',[sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode/S-function']])
set_param([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode/S-function']],...
		'function name','simrscod',...
		'parameters','n, k, pg,tp,dim',...
		'position',[180,30,245,50])

add_block('built-in/Mux',[sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode/Mux']])
set_param([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode/Mux']],...
		'inputs','2',...
		'position',[90,51,125,84])

add_block('built-in/Inport',[sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode/in_1']])
set_param([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode/in_1']],...
		'position',[30,25,50,45])

add_block('built-in/Inport',[sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode/in_2']])
set_param([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode/in_2']],...
		'Port','2',...
		'position',[20,110,40,130])

add_block('built-in/Outport',[sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode/out_1']])
set_param([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode/out_1']],...
		'position',[425,60,445,80])
add_line([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode']],[340,70;420,70])
add_line([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode']],[370,70;370,120;350,120])
add_line([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode']],[300,120;265,120;265,80;300,80])
add_line([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode']],[250,40;265,40;265,60;300,60])
add_line([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode']],[55,35;70,35;70,60;85,60])
add_line([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode']],[130,70;160,70;160,40;175,40])
add_line([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode']],[45,120;210,120;210,70;300,70])
add_line([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode']],[70,120;70,75;85,75])
set_param([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode']],...
		'Mask Display','plot(0,0,100,100,x,y,v,w);Int RS en',...
		'Mask Type','Integer vector I/O RS encode')
set_param([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode']],...
		'Mask Dialogue','Reed-Solomon encode with integer input\nmessage vector length K and integer\noutput codeword vector length N.|Code length N=2^M-1 (M is a >=3 integer):|Message length K (< N):')
set_param([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode']],...
		'Mask Translate','n=@1;k=@2;if length(k)>1,pg=k;k=n-length(pg)-1;else,pg=rspoly(n,k);end;dim=3;p_dim=7;while p_dim<n,dim=dim+1;p_dim=2^dim-1;end;tp=gftuple([-1:n-1]'',dim);[x,y]=codeicon(1);[v,w]=trigicon(0,25,get_param(gcb,''orientation''));')
set_param([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode']],...
		'Mask Help','This block encodes length K integer vector message input into length N integer vector codeword output using Reed-Solomon code. The input/output integers are in range [0, N-1]. Code word length N=2^M-1, where M is a integer no less than 3. The message length K<N. The block refreshes its decoding output when the enable signal at the second inport has positive value.')
set_param([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode']],...
		'Mask Entries','n\/k\/')


%     Finished composite block ['Integer sequence',13,'RS encode/Integer vector',13,'RS encode'].

set_param([sys,'/',['Integer sequence',13,'RS encode/Integer vector',13,'RS encode']],...
		'position',[415,38,495,82])
add_line([sys,'/',['Integer sequence',13,'RS encode']],[175,115;510,115;510,80;535,80])
add_line([sys,'/',['Integer sequence',13,'RS encode']],[175,100;185,100;185,70;220,70])
add_line([sys,'/',['Integer sequence',13,'RS encode']],[370,70;410,70])
add_line([sys,'/',['Integer sequence',13,'RS encode']],[395,70;395,110;505,110;505,70;535,70])
add_line([sys,'/',['Integer sequence',13,'RS encode']],[285,70;310,70])
add_line([sys,'/',['Integer sequence',13,'RS encode']],[500,60;535,60])
add_line([sys,'/',['Integer sequence',13,'RS encode']],[100,110;120,110])
add_line([sys,'/',['Integer sequence',13,'RS encode']],[285,50;410,50])
add_line([sys,'/',['Integer sequence',13,'RS encode']],[140,50;220,50])
add_line([sys,'/',['Integer sequence',13,'RS encode']],[605,65;680,65])
add_line([sys,'/',['Integer sequence',13,'RS encode']],[605,80;640,80])
set_param([sys,'/',['Integer sequence',13,'RS encode']],...
		'Mask Display','plot(0,0,100,100,x,y,v,w);Int RS en',...
		'Mask Type','Integer sequence I/O RS encode')
set_param([sys,'/',['Integer sequence',13,'RS encode']],...
		'Mask Dialogue','RS encode with codeword length N, message\nlength K. Input integers are in range\n[0, N-1].|Code length N=2^M-1 (M is a >2 integer):|Message length K:|Input sample time T_in (sec):')
set_param([sys,'/',['Integer sequence',13,'RS encode']],...
		'Mask Translate','n=@1;k=@2;samp=@3;m=3;p_m=7;while p_m<n,m=m+1;p_m=2^m-1;end;[x,y]=codeicon(3);[v,w]=trigicon(1,75,get_param(gcb,''orientation''));')
set_param([sys,'/',['Integer sequence',13,'RS encode']],...
		'Mask Help','This block encodes length K integer message into length N integer codeword. The block uses sequential input/output format. The input integers are in range [0, N-1]. The output sequence sample time is K*T_in/N. The block causes a K*T_in delay. The second outport outputs a pulse when Kth message signal is received.')
set_param([sys,'/',['Integer sequence',13,'RS encode']],...
		'Mask Entries','7\/5\/1/5\/')


%     Finished composite block ['Integer sequence',13,'RS encode'].

set_param([sys,'/',['Integer sequence',13,'RS encode']],...
		'position',[35,203,115,247])


%     Subsystem  ['Integer sequence',13,'RS decode'].

new_system([sys,'/',['Integer sequence',13,'RS decode']])
set_param([sys,'/',['Integer sequence',13,'RS decode']],'Location',[43,589,882,748])

add_block('built-in/Zero-Order Hold',[sys,'/',['Integer sequence',13,'RS decode/Zero-Order',13,'Hold1']])
set_param([sys,'/',['Integer sequence',13,'RS decode/Zero-Order',13,'Hold1']],...
		'Sample time','samp',...
		'position',[735,34,770,66])

add_block('built-in/Outport',[sys,'/',['Integer sequence',13,'RS decode/out_1']])
set_param([sys,'/',['Integer sequence',13,'RS decode/out_1']],...
		'position',[795,40,815,60])

add_block('built-in/Zero-Order Hold',[sys,'/',['Integer sequence',13,'RS decode/Zero-Order',13,'Hold']])
set_param([sys,'/',['Integer sequence',13,'RS decode/Zero-Order',13,'Hold']],...
		'Sample time','samp*k',...
		'position',[545,29,580,61])


%     Subsystem  ['Integer sequence',13,'RS decode/Triggered',13,'buffer down'].

new_system([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down']])
set_param([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down']],'Location',[306,291,744,461])

add_block('built-in/Inport',[sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down/in_3']])
set_param([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down/in_3']],...
		'Port','3',...
		'position',[65,85,85,105])

add_block('built-in/Inport',[sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down/in_2']])
set_param([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down/in_2']],...
		'Port','2',...
		'position',[40,70,60,90])

add_block('built-in/Inport',[sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down/in_1']])
set_param([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down/in_1']],...
		'position',[15,55,35,75])

add_block('built-in/S-Function',[sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down/S-function']])
set_param([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down/S-function']],...
		'function name','regdown',...
		'parameters','ini_idx, idx_inc, thrshld, cycl_flag',...
		'position',[185,70,235,90])

add_block('built-in/Demux',[sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down/Demux']])
set_param([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down/Demux']],...
		'outputs','[out_size 1]',...
		'position',[290,62,330,98])

add_block('built-in/Mux',[sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down/Mux']])
set_param([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down/Mux']],...
		'inputs','[in_size 1 1]',...
		'position',[110,59,140,101])

add_block('built-in/Outport',[sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down/out_2']])
set_param([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down/out_2']],...
		'Port','2',...
		'position',[355,80,375,100])

add_block('built-in/Outport',[sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down/out_1']])
set_param([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down/out_1']],...
		'position',[390,60,410,80])
add_line([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down']],[90,95;105,95])
add_line([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down']],[335,90;350,90])
add_line([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down']],[65,80;105,80])
add_line([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down']],[335,70;385,70])
add_line([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down']],[40,65;105,65])
add_line([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down']],[145,80;180,80])
add_line([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down']],[240,80;285,80])
set_param([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down']],...
		'Mask Display','Triggered\nbuffer dn',...
		'Mask Type','Triggered buffer down.')
set_param([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down']],...
		'Mask Dialogue','Triggered buffer down.|Input signal vector size:|Initial index (integer vector):|Increament for each index (integer vector):|Trigger threshold:|When index exceed register size, 1 for cyclic ouput, 0 for zero output:')
set_param([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down']],...
		'Mask Translate','in_size=@1; ini_idx=@2; idx_inc=@3; thrshld=@4; cycl_flag=@5; out_size=length(ini_idx);')
set_param([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down']],...
		'Mask Help','The register inside this block take the signal vector at the 1st inport by the raising edge of the second inport. The fisrt outport outputs a signal vector at the raising edge of the third inport.')
set_param([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down']],...
		'Mask Entries','k\/0\/1\/.1\/0\/')


%     Finished composite block ['Integer sequence',13,'RS decode/Triggered',13,'buffer down'].

set_param([sys,'/',['Integer sequence',13,'RS decode/Triggered',13,'buffer down']],...
		'ForeGround',6,...
		'position',[645,38,705,72])

add_block('built-in/Outport',[sys,'/',['Integer sequence',13,'RS decode/out_2']])
set_param([sys,'/',['Integer sequence',13,'RS decode/out_2']],...
		'Port','2',...
		'position',[510,55,530,75])


%     Subsystem  ['Integer sequence',13,'RS decode/Rising edge',13,'detector'].

new_system([sys,'/',['Integer sequence',13,'RS decode/Rising edge',13,'detector']])
set_param([sys,'/',['Integer sequence',13,'RS decode/Rising edge',13,'detector']],'Location',[282,116,671,290])

add_block('built-in/Outport',[sys,'/',['Integer sequence',13,'RS decode/Rising edge',13,'detector/out_1']])
set_param([sys,'/',['Integer sequence',13,'RS decode/Rising edge',13,'detector/out_1']],...
		'position',[340,25,360,45])

add_block('built-in/Relational Operator',[sys,'/',['Integer sequence',13,'RS decode/Rising edge',13,'detector/Relational',13,'Operator1']])
set_param([sys,'/',['Integer sequence',13,'RS decode/Rising edge',13,'detector/Relational',13,'Operator1']],...
		'position',[200,88,230,112])

add_block('built-in/Relational Operator',[sys,'/',['Integer sequence',13,'RS decode/Rising edge',13,'detector/Relational',13,'Operator2']])
set_param([sys,'/',['Integer sequence',13,'RS decode/Rising edge',13,'detector/Relational',13,'Operator2']],...
		'Operator','>',...
		'position',[265,23,295,47])

add_block('built-in/Constant',[sys,'/',['Integer sequence',13,'RS decode/Rising edge',13,'detector/one1']])
set_param([sys,'/',['Integer sequence',13,'RS decode/Rising edge',13,'detector/one1']],...
		'Value','thld',...
		'position',[30,135,60,15