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Position [260, 138, 340, 182]
ShowPortLabels off
TreatAsAtomicUnit off
MaskType "Triggered buffer down"
MaskDescription "Rising edge of the 2nd port triggers 1st po"
"rt vector signal in. Rising edge of the 3rd port triggers 1st outport signal "
"out."
MaskHelp "The block refreshes its registers with the "
"vector input from the 1st inport at the rising edge of the 2nd inport pulse. "
"The 1st outport outputs the elements of the registers starting with the given"
" initial index. The rising edge of the 3rd inport pulse triggers the 1st outp"
"ut to output the register value with the index increasing the increment value"
". The second outport outputs a spike pulse when the internal register is refr"
"eshed."
MaskPromptString "Input signal vector size:|Initial index (in"
"teger vector):|Increment for each index (integer vector):|Trigger threshold:|"
"When index exceed register size, 1: cyclic out, 0: zero out:"
MaskStyleString "edit,edit,edit,edit,edit"
MaskTunableValueString "on,on,on,on,on"
MaskCallbackString "||||"
MaskEnableString "on,on,on,on,on"
MaskVisibilityString "on,on,on,on,on"
MaskToolTipString "on,on,on,on,on"
MaskVarAliasString ",,,,"
MaskInitialization "in_size=@1;ini_idx=@2;idx_inc=@3;thrshld=@4"
";cycl_flag=@5;out_size=length(ini_idx);[v,w]=trigicon(0,25,get_param(gcb,'ori"
"entation'),2);[x,y]=trigicon(1,75,get_param(gcb,'orientation'),2);[u,z]=trigi"
"con(0,50,get_param(gcb,'orientation'),2);"
MaskDisplay "plot(0,0,100,100,x,y,v,w,u,z);disp('Buffer "
"dwn')"
MaskIconFrame on
MaskIconOpaque on
MaskIconRotate "none"
MaskIconUnits "autoscale"
MaskValueString "2|[1 0]|[0 0]|1|0"
System {
Name "hold"
Location [22, 74, 460, 244]
Open off
ModelBrowserVisibility off
ModelBrowserWidth 200
ScreenColor "white"
PaperOrientation "landscape"
PaperPositionMode "auto"
PaperType "usletter"
PaperUnits "inches"
ZoomFactor "100"
Block {
BlockType Inport
Name "in_1"
Position [15, 55, 35, 75]
}
Block {
BlockType Inport
Name "in_2"
Position [40, 70, 60, 90]
Port "2"
}
Block {
BlockType Inport
Name "in_3"
Position [65, 85, 85, 105]
Port "3"
}
Block {
BlockType Demux
Name "Demux"
Ports [1, 2]
Position [290, 62, 330, 98]
Outputs "[out_size 1]"
}
Block {
BlockType Mux
Name "Mux"
Ports [3, 1]
Position [110, 59, 140, 101]
Inputs "[in_size 1 1]"
}
Block {
BlockType "S-Function"
Name "S-function"
Ports [1, 1]
Position [185, 70, 235, 90]
FunctionName "regdown"
Parameters "ini_idx, idx_inc, thrshld, cycl_flag"
}
Block {
BlockType Outport
Name "out_1"
Position [390, 60, 410, 80]
}
Block {
BlockType Outport
Name "out_2"
Position [355, 80, 375, 100]
Port "2"
}
Line {
SrcBlock "S-function"
SrcPort 1
DstBlock "Demux"
DstPort 1
}
Line {
SrcBlock "Mux"
SrcPort 1
DstBlock "S-function"
DstPort 1
}
Line {
SrcBlock "in_1"
SrcPort 1
DstBlock "Mux"
DstPort 1
}
Line {
SrcBlock "Demux"
SrcPort 1
DstBlock "out_1"
DstPort 1
}
Line {
SrcBlock "in_2"
SrcPort 1
DstBlock "Mux"
DstPort 2
}
Line {
SrcBlock "Demux"
SrcPort 2
DstBlock "out_2"
DstPort 1
}
Line {
SrcBlock "in_3"
SrcPort 1
DstBlock "Mux"
DstPort 3
}
}
}
Block {
BlockType Outport
Name "binary"
Position [480, 60, 500, 80]
}
Block {
BlockType Outport
Name "Symbol"
Position [480, 140, 500, 160]
Port "2"
}
Line {
SrcBlock "Bits"
SrcPort 1
Points [15, 0]
Branch {
DstBlock "delay"
DstPort 1
}
Branch {
DstBlock "Shift register"
DstPort 1
}
}
Line {
SrcBlock "Shift register"
SrcPort 2
Points [20, 0]
Branch {
Points [0, -5]
DstBlock "hold"
DstPort 2
}
Branch {
Points [0, 10]
DstBlock "hold"
DstPort 3
}
}
Line {
SrcBlock "clock"
SrcPort 1
DstBlock "Shift register"
DstPort 2
}
Line {
SrcBlock "hold"
SrcPort 1
DstBlock "D/A "
DstPort 1
}
Line {
SrcBlock "Shift register"
SrcPort 1
DstBlock "hold"
DstPort 1
}
Line {
SrcBlock "delay"
SrcPort 1
DstBlock "binary"
DstPort 1
}
Line {
SrcBlock "D/A "
SrcPort 1
DstBlock "Symbol"
DstPort 1
}
Line {
SrcBlock "hold"
SrcPort 2
Points [10, 0; 0, 35]
DstBlock "Terminator"
DstPort 1
}
Annotation {
Name "two bits are combined to a 4-ary symbol.\nM"
"SB first"
Position [267, 7]
VerticalAlignment "top"
}
}
}
Block {
BlockType Reference
Name "Channel"
Ports [1, 1]
Position [480, 114, 560, 156]
SourceBlock "librnew/Channel"
SourceType "AWGN channel, fixed parameter"
m "0"
variance "0.001"
s "12345"
}
Block {
BlockType Clock
Name "Clock"
Position [245, 220, 265, 240]
Decimation "10"
}
Block {
BlockType Clock
Name "Clock1"
Position [495, 20, 515, 40]
Decimation "10"
}
Block {
BlockType SubSystem
Name "Error rate"
Ports [2]
Position [910, 225, 990, 265]
Orientation "down"
CopyFcn "sbiterr([],[],[],'CopyBlock')"
DeleteFcn "sbiterr([],[],[],'DeleteBlock')"
LoadFcn "sbiterr([],[],[],'LoadBlock')"
StartFcn "sbiterr([],[],[],'Start')"
StopFcn "sbiterr([],[],[],'Stop')"
NameChangeFcn "sbiterr([],[],[],'NameChange')"
ShowPortLabels off
TreatAsAtomicUnit off
MaskType "Symbol/bit error counter"
MaskDescription "Use the input data from the 1st port as the ref"
"erence signal to detect the number of errors and error rate of the 2nd signal"
"."
MaskHelp "The signal from the first port must be a scalar"
". The second input port can be a vector with a delay to the first port signal"
". The comparison happens only at the sampling point."
MaskPromptString "Bit per symbol:|Number of digits on display:|De"
"lay between 1st port and 2nd port:|Sample time (sec):"
MaskStyleString "edit,edit,edit,edit"
MaskTunableValueString "on,on,on,on"
MaskCallbackString "|||"
MaskEnableString "on,on,on,on"
MaskVisibilityString "on,on,on,on"
MaskToolTipString "on,on,on,on"
MaskVarAliasString ",,,"
MaskInitialization "K=@1;num_lin=@2;TDelay=@3;Sample=@4;"
MaskDisplay "disp('Error\\nmeter')"
MaskIconFrame on
MaskIconOpaque on
MaskIconRotate "none"
MaskIconUnits "autoscale"
MaskValueString "2|10|12|1"
System {
Name "Error rate"
Location [255, 368, 509, 510]
Open off
ModelBrowserVisibility off
ModelBrowserWidth 200
ScreenColor "white"
PaperOrientation "landscape"
PaperPositionMode "auto"
PaperType "usletter"
PaperUnits "inches"
ZoomFactor "100"
Block {
BlockType Inport
Name "in_1"
Position [15, 45, 35, 65]
}
Block {
BlockType Inport
Name "in_2"
Position [15, 60, 35, 80]
Port "2"
}
Block {
BlockType Mux
Name "Mux"
Ports [2, 1]
Position [65, 46, 100, 79]
Inputs "2"
}
Block {
BlockType "S-Function"
Name "S-function"
Ports [1]
Position [130, 52, 195, 78]
FunctionName "sbiterr"
Parameters "num_lin, K, TDelay, Sample"
}
Line {
SrcBlock "in_2"
SrcPort 1
DstBlock "Mux"
DstPort 2
}
Line {
SrcBlock "in_1"
SrcPort 1
DstBlock "Mux"
DstPort 1
}
Line {
SrcBlock "Mux"
SrcPort 1
DstBlock "S-function"
DstPort 1
}
}
}
Block {
BlockType Fcn
Name "Fcn"
Position [285, 217, 355, 243]
ShowName off
Expr "cos(4*pi*u)"
}
Block {
BlockType Fcn
Name "Fcn1"
Position [535, 17, 630, 43]
ShowName off
Expr "2*cos(4*pi*u)"
}
Block {
BlockType Gain
Name "Gain"
Position [795, 117, 820, 143]
Gain "1/20"
}
Block {
BlockType Product
Name "Product"
Ports [2, 1]
Position [380, 117, 405, 148]
ShowName off
}
Block {
BlockType Product
Name "Product1"
Ports [2, 1]
Position [660, 112, 685, 143]
ShowName off
}
Block {
BlockType SubSystem
Name "Raised-Cosine\nreceive filter"
Ports [1, 1]
Position [700, 108, 780, 152]
ShowPortLabels off
TreatAsAtomicUnit off
MaskType "R-C filter"
MaskDescription "Design a raised cosine filter and use it to fil"
"ter the input signal."
MaskHelp "This block designs a raised cosine filter using"
" the specified parameter. The filter is used to filter the input signal. You "
"can optionally use the sinc filter in the filtering computation."
MaskPromptString "Symbol interval (sec):|Computation sampling tim"
"e (sec):|Filter rolloff factor:|Delay step (integer to multiply symbol interv"
"al):|Filter type (FIR or IIR) / (Normal or Sqrt):|With or without sinc filter"
" (1 or 0, suggest 1):"
MaskStyleString "edit,edit,edit,edit,edit,edit"
MaskTunableValueString "on,on,on,on,on,on"
MaskCallbackString "|||||"
MaskEnableString "on,on,on,on,on,on"
MaskVisibilityString "on,on,on,on,on,on"
MaskToolTipString "on,on,on,on,on,on"
MaskVarAliasString ",,,,,"
MaskInitialization "td=@1;if length(td)>1,off=td(2);td=td(1);else,o"
"ff=0;end;ts=@2;R=@3;delay=@4;fil=@5;[num,den]=rcosine(1/td(1),1/ts(1),fil,R,d"
"elay);x=@6/2;"
MaskDisplay "disp('R-C\\nfilter')"
MaskIconFrame on
MaskIconOpaque on
MaskIconRotate "none"
MaskIconUnits "autoscale"
MaskValueString "1|.05|.5|6|'FIR'|0"
System {
Name "Raised-Cosine\nreceive filter"
Location [131, 545, 589, 761]
Open off
ModelBrowserVisibility off
ModelBrowserWidth 200
ScreenColor "white"
PaperOrientation "landscape"
PaperPositionMode "auto"
PaperType "usletter"
PaperUnits "inches"
ZoomFactor "100"
Block {
BlockType Inport
Name "in_1"
Position [35, 30, 55, 50]
}
Block {
BlockType DiscreteFilter
Name "Filter"
Position [255, 31, 310, 69]
Numerator "num"
Denominator "den"
SampleTime "ts"
}
Block {
BlockType SubSystem
Name "Memory Impulse"
Ports [2, 1]
Position [155, 30, 225, 70]
ShowPortLabels off
TreatAsAtomicUnit off
MaskType "Impulse"
MaskDescription "1/sinc filter:"
MaskHelp "When the threshold is greater than zero, th"
"is block outputs an impulse signal, which begins at the raising edge of the s"
"econd input and lasts the holding time. The impulse holds a constant amplitud"
"e, which equals the amplitude of the first input at the begining of the impul"
"se. A clock raising edge will trigger next impulse. When the threshold is les"
"s or equal to zero, this block faithfully outputs the first input."
MaskPromptString "Holding time:|Threshold for clock pulse: "
MaskStyleString "edit,edit"
MaskTunableValueString "on,on"
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