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"
", this block outputs an impulse signal, which begins at the raising edge of t"
"he second input and lasts the holding time. The impulse holds a constant ampl"
"itude, which equals the amplitude of the first input at the begining of the i"
"mpulse. A clock raising edge will trigger next impulse. When the threshold is"
" less or equal to zero, this block faithfully outputs the first input."
	      MaskPromptString	      "Holding time:|Threshold for clock pulse"
": "
	      MaskStyleString	      "edit,edit"
	      MaskTunableValueString  "on,on"
	      MaskCallbackString      "|"
	      MaskEnableString	      "on,on"
	      MaskVisibilityString    "on,on"
	      MaskToolTipString	      "on,on"
	      MaskVarAliasString      ","
	      MaskInitialization      "ts=@1;thr=@2;x=thr>0;"
	      MaskDisplay	      "disp('1/sinc')"
	      MaskIconFrame	      on
	      MaskIconOpaque	      on
	      MaskIconRotate	      "none"
	      MaskIconUnits	      "autoscale"
	      MaskValueString	      "ts|x"
	      System {
		Name			"Memory Impulse"
		Location		[541, 520, 939, 745]
		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, 185, 55, 205]
		}
		Block {
		  BlockType		  Inport
		  Name			  "in_2"
		  Position		  [25, 30, 45, 50]
		  Port			  "2"
		}
		Block {
		  BlockType		  Constant
		  Name			  "Constant"
		  Position		  [210, 155, 230, 175]
		  Value			  "x"
		}
		Block {
		  BlockType		  Product
		  Name			  "Product"
		  Ports			  [2, 1]
		  Position		  [155, 90, 180, 110]
		}
		Block {
		  BlockType		  Switch
		  Name			  "Switch"
		  Position		  [295, 124, 320, 156]
		  Threshold		  ".5"
		}
		Block {
		  BlockType		  ZeroOrderHold
		  Name			  "Zero-Order\nHold"
		  Position		  [205, 84, 240, 116]
		  SampleTime		  "ts"
		}
		Block {
		  BlockType		  SubSystem
		  Name			  "discrete\nRising edge\ndetector"
		  Ports			  [1, 1]
		  Position		  [65, 26, 120, 54]
		  ShowPortLabels	  off
		  TreatAsAtomicUnit	  off
		  MaskType		  "Edge Detection"
		  MaskDescription	  "Rising edge detection:"
		  MaskHelp		  "When the input signal rising edge p"
"assed the given shreshold, this block outputs one, otherwise outputs zero."
		  MaskPromptString	  "Threshold:|Sampling time:"
		  MaskStyleString	  "edit,edit"
		  MaskTunableValueString  "on,on"
		  MaskCallbackString	  "|"
		  MaskEnableString	  "on,on"
		  MaskVisibilityString	  "on,on"
		  MaskToolTipString	  "on,on"
		  MaskVarAliasString	  ","
		  MaskInitialization	  "thld=@1;ts=@2;"
		  MaskDisplay		  "disp('Edge\\nDetector')"
		  MaskIconFrame		  on
		  MaskIconOpaque	  on
		  MaskIconRotate	  "none"
		  MaskIconUnits		  "autoscale"
		  MaskValueString	  "thr|ts"
		  System {
		    Name		    "discrete\nRising edge\ndetector"
		    Location		    [419, 521, 808, 713]
		    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		    [10, 15, 30, 35]
		    }
		    Block {
		    BlockType		    RelationalOperator
		    Name		    "Relational\nOperator"
		    Position		    [135, 18, 165, 42]
		    }
		    Block {
		    BlockType		    RelationalOperator
		    Name		    "Relational\nOperator1"
		    Position		    [200, 88, 230, 112]
		    }
		    Block {
		    BlockType		    RelationalOperator
		    Name		    "Relational\nOperator2"
		    Position		    [265, 23, 295, 47]
		    Operator		    ">"
		    }
		    Block {
		    BlockType		    UnitDelay
		    Name		    "Unit Delay"
		    Position		    [120, 87, 170, 103]
		    SampleTime		    "ts"
		    }
		    Block {
		    BlockType		    Constant
		    Name		    "one1"
		    Position		    [30, 135, 60, 155]
		    Value		    "thld"
		    }
		    Block {
		    BlockType		    Outport
		    Name		    "out_1"
		    Position		    [340, 25, 360, 45]
		    }
		    Line {
		    SrcBlock		    "Relational\nOperator2"
		    SrcPort		    1
		    DstBlock		    "out_1"
		    DstPort		    1
		    }
		    Line {
		    SrcBlock		    "Relational\nOperator1"
		    SrcPort		    1
		    Points		    [5, 0; 0, -60]
		    DstBlock		    "Relational\nOperator2"
		    DstPort		    2
		    }
		    Line {
		    SrcBlock		    "Relational\nOperator"
		    SrcPort		    1
		    DstBlock		    "Relational\nOperator2"
		    DstPort		    1
		    }
		    Line {
		    SrcBlock		    "one1"
		    SrcPort		    1
		    Points		    [35, 0]
		    Branch {
		    Points		    [0, -110]
		    DstBlock		    "Relational\nOperator"
		    DstPort		    2
		    }
		    Branch {
		    Points		    [80, 0; 0, -40]
		    DstBlock		    "Relational\nOperator1"
		    DstPort		    2
		    }
		    }
		    Line {
		    SrcBlock		    "Unit Delay"
		    SrcPort		    1
		    DstBlock		    "Relational\nOperator1"
		    DstPort		    1
		    }
		    Line {
		    SrcBlock		    "in_1"
		    SrcPort		    1
		    Points		    [10, 0]
		    Branch {
		    DstBlock		    "Relational\nOperator"
		    DstPort		    1
		    }
		    Branch {
		    Points		    [0, 70]
		    DstBlock		    "Unit Delay"
		    DstPort		    1
		    }
		    }
		  }
		}
		Block {
		  BlockType		  Outport
		  Name			  "out_1"
		  Position		  [355, 130, 375, 150]
		}
		Line {
		  SrcBlock		  "Zero-Order\nHold"
		  SrcPort		  1
		  Points		  [15, 0; 0, 30]
		  DstBlock		  "Switch"
		  DstPort		  1
		}
		Line {
		  SrcBlock		  "Product"
		  SrcPort		  1
		  DstBlock		  "Zero-Order\nHold"
		  DstPort		  1
		}
		Line {
		  SrcBlock		  "in_1"
		  SrcPort		  1
		  Points		  [35, 0]
		  Branch {
		    Points		    [185, 0]
		    DstBlock		    "Switch"
		    DstPort		    3
		  }
		  Branch {
		    Points		    [0, -90]
		    DstBlock		    "Product"
		    DstPort		    2
		  }
		}
		Line {
		  SrcBlock		  "Switch"
		  SrcPort		  1
		  DstBlock		  "out_1"
		  DstPort		  1
		}
		Line {
		  SrcBlock		  "Constant"
		  SrcPort		  1
		  Points		  [15, 0; 0, -25]
		  DstBlock		  "Switch"
		  DstPort		  2
		}
		Line {
		  SrcBlock		  "discrete\nRising edge\ndetector"
		  SrcPort		  1
		  Points		  [5, 0; 0, 55]
		  DstBlock		  "Product"
		  DstPort		  1
		}
		Line {
		  SrcBlock		  "in_2"
		  SrcPort		  1
		  DstBlock		  "discrete\nRising edge\ndetector"
		  DstPort		  1
		}
	      }
	    }
	    Block {
	      BlockType		      SubSystem
	      Name		      "Pulses deivide\nsame sample time1"
	      Ports		      [0, 1]
	      Position		      [35, 71, 95, 109]
	      ShowPortLabels	      off
	      TreatAsAtomicUnit	      off
	      MaskType		      "Pulse generator"
	      MaskDescription	      "Vector pulses with sample rate of each "
"pulse as Sample_time ./Divider. "
	      MaskHelp		      "This block generator a vector pulses. T"
"he output length is the same as the vector defined in \"Divider\". The ith el"
"ement of the output has the sample time Sample_time/Divider(i). All elements "
"in \"Divider\" must be integers."
	      MaskPromptString	      "Sample time (scalar, sec):|Divider (int"
"eger vector):|Offset (have same dimension as Divider:"
	      MaskStyleString	      "edit,edit,edit"
	      MaskTunableValueString  "on,on,on"
	      MaskCallbackString      "||"
	      MaskEnableString	      "on,on,on"
	      MaskVisibilityString    "on,on,on"
	      MaskToolTipString	      "on,on,on"
	      MaskVarAliasString      ",,"
	      MaskInitialization      "samp_time=@1;out_divid=@2;offset=@3;"
	      MaskDisplay	      "disp('Vector\\nPulse')"
	      MaskIconFrame	      on
	      MaskIconOpaque	      on
	      MaskIconRotate	      "none"
	      MaskIconUnits	      "autoscale"
	      MaskValueString	      "td|1|off"
	      System {
		Name			"Pulses deivide\nsame sample time1"
		Location		[55, 192, 283, 286]
		Open			off
		ModelBrowserVisibility	off
		ModelBrowserWidth	200
		ScreenColor		"white"
		PaperOrientation	"landscape"
		PaperPositionMode	"auto"
		PaperType		"usletter"
		PaperUnits		"inches"
		ZoomFactor		"100"
		Block {
		  BlockType		  "S-Function"
		  Name			  "S-function1"
		  Ports			  [0, 1]
		  Position		  [40, 31, 105, 59]
		  FunctionName		  "homopuls"
		  Parameters		  "samp_time, out_divid, offset"
		}
		Block {
		  BlockType		  Outport
		  Name			  "Outport"
		  Position		  [160, 35, 180, 55]
		}
		Line {
		  SrcBlock		  "S-function1"
		  SrcPort		  1
		  DstBlock		  "Outport"
		  DstPort		  1
		}
	      }
	    }
	    Block {
	      BlockType		      Outport
	      Name		      "out_1"
	      Position		      [330, 40, 350, 60]
	    }
	    Line {
	      SrcBlock		      "Pulses deivide\nsame sample time1"
	      SrcPort		      1
	      Points		      [15, 0; 0, -30]
	      DstBlock		      "Memory Impulse"
	      DstPort		      2
	    }
	    Line {
	      SrcBlock		      "Memory Impulse"
	      SrcPort		      1
	      DstBlock		      "Filter"
	      DstPort		      1
	    }
	    Line {
	      SrcBlock		      "in_1"
	      SrcPort		      1
	      DstBlock		      "Memory Impulse"
	      DstPort		      1
	    }
	    Line {
	      SrcBlock		      "Filter"
	      SrcPort		      1
	      DstBlock		      "out_1"
	      DstPort		      1
	    }
	  }
	}
	Block {
	  BlockType		  SubSystem
	  Name			  "Raised-Cosine\nreceive filter_"
	  Ports			  [1, 1]
	  Position		  [410, 203, 490, 247]
	  ShowPortLabels	  off
	  TreatAsAtomicUnit	  off
	  MaskType		  "R-C filter"
	  MaskDescription	  "Design a raised cosine filter and use it to"
" filter the input signal."
	  MaskHelp		  "This block designs a raised cosine filter u"
"sing 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"
" time (sec):|Filter rolloff factor:|Delay step (integer to multiply symbol in"
"terval):|Filter type (FIR or IIR) / (Normal or Sqrt):|With or without sinc fi"
"lter (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);el"
"se,off=0;end;ts=@2;R=@3;delay=@4;fil=@5;[num,den]=rcosine(1/td(1),1/ts(1),fil"
",R,delay);x=@6/2;"
	  MaskDisplay		  "disp('R-C\\nfilter')"
	  MaskIconFrame		  on
	  MaskIconOpaque	  on
	  MaskIconRotate	  "none"
	  MaskIconUnits		  "autoscale"
	  MaskValueString	  "1|.05|0.5|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