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📄 fh_demo.mdl

📁 数字信号处理（机械工业出版社）的源码
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123 
	  MaskHelp		  "IIR Butterworth band pass filter using MATL"
"AB's butter command."
	  MaskPromptString	  "Center frequency (0 to 1):|Bandwidth (0 to "
"1):|Order:|Sample time:"
	  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	  "bw = @2/2; [a,b,c,d]=butter(@3,[@1-bw,@1+bw"
"] ); ts=@4; [num,den]=ss2tf(a,b,c,d,1); if (@3 <= 8), [a,b,c,d]=tf2ss(num,den"
"); end; h=freqz(num,den,64); "
	  MaskDisplay		  "plot(1:64,abs(h))"
	  MaskIconFrame		  on
	  MaskIconOpaque	  on
	  MaskIconRotate	  "none"
	  MaskIconUnits		  "autoscale"
	  MaskValueString	  "F4*ts*2|0.05|7|ts"
	  System {
	    Name		    "Butterworth\nIIR BP Filter6"
	    Location		    [410, 195, 910, 455]
	    Open		    off
	    ModelBrowserVisibility  off
	    ModelBrowserWidth	    200
	    ScreenColor		    "white"
	    PaperOrientation	    "landscape"
	    PaperPositionMode	    "auto"
	    PaperType		    "usletter"
	    PaperUnits		    "inches"
	    ZoomFactor		    "100"
	    Block {
	      BlockType		      Inport
	      Name		      "In1"
	      Position		      [20, 80, 40, 100]
	    }
	    Block {
	      BlockType		      DiscreteStateSpace
	      Name		      "Butterworth\nIIR BP Filter6"
	      Position		      [90, 58, 160, 92]
	      ShowName		      off
	      A			      "a"
	      B			      "b"
	      C			      "c"
	      D			      "d"
	      SampleTime	      "ts"
	    }
	    Block {
	      BlockType		      Outport
	      Name		      "Out1"
	      Position		      [190, 80, 210, 100]
	      InitialOutput	      "0"
	    }
	    Line {
	      SrcBlock		      "Butterworth\nIIR BP Filter6"
	      SrcPort		      1
	      DstBlock		      "Out1"
	      DstPort		      1
	    }
	    Line {
	      SrcBlock		      "In1"
	      SrcPort		      1
	      DstBlock		      "Butterworth\nIIR BP Filter6"
	      DstPort		      1
	    }
	  }
	}
	Block {
	  BlockType		  Reference
	  Name			  "DSB-SC-ADM\npassband"
	  Ports			  [1, 1]
	  Position		  [180, 33, 260, 77]
	  ShowName		  off
	  SourceBlock		  "com_cdmo/DSB-SC-ADM\npassband"
	  SourceType		  "Passband DSB-SC ADM"
	  MaskParam1		  "F0"
	  MaskParam2		  "num0"
	  MaskParam3		  "den0"
	  MaskParam4		  "0"
	  MaskParam5		  "ts"
	}
	Block {
	  BlockType		  Reference
	  Name			  "DSB-SC-ADM\npassband1"
	  Ports			  [1, 1]
	  Position		  [180, 103, 260, 147]
	  ShowName		  off
	  SourceBlock		  "com_cdmo/DSB-SC-ADM\npassband"
	  SourceType		  "Passband DSB-SC ADM"
	  MaskParam1		  "F2"
	  MaskParam2		  "num2"
	  MaskParam3		  "den2"
	  MaskParam4		  "0"
	  MaskParam5		  "ts"
	}
	Block {
	  BlockType		  Reference
	  Name			  "DSB-SC-ADM\npassband2"
	  Ports			  [1, 1]
	  Position		  [185, 173, 265, 217]
	  ShowName		  off
	  SourceBlock		  "com_cdmo/DSB-SC-ADM\npassband"
	  SourceType		  "Passband DSB-SC ADM"
	  MaskParam1		  "F4"
	  MaskParam2		  "num4"
	  MaskParam3		  "den4"
	  MaskParam4		  "0"
	  MaskParam5		  "ts"
	}
	Block {
	  BlockType		  Mux
	  Name			  "Mux"
	  Ports			  [3, 1]
	  Position		  [305, 97, 340, 153]
	  ShowName		  off
	  Inputs		  "3"
	}
	Block {
	  BlockType		  Outport
	  Name			  "out_1"
	  Position		  [370, 115, 390, 135]
	  ShowName		  off
	  InitialOutput		  "0"
	}
	Line {
	  SrcBlock		  "in_1"
	  SrcPort		  1
	  Points		  [10, 0]
	  Branch {
	    DstBlock		    "Butterworth\nIIR BP Filter4"
	    DstPort		    1
	  }
	  Branch {
	    DstBlock		    "Butterworth\nIIR BP Filter6"
	    DstPort		    1
	  }
	  Branch {
	    DstBlock		    "Butterworth\nIIR BP Filter5"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "Butterworth\nIIR BP Filter5"
	  SrcPort		  1
	  DstBlock		  "DSB-SC-ADM\npassband1"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "Butterworth\nIIR BP Filter4"
	  SrcPort		  1
	  DstBlock		  "DSB-SC-ADM\npassband"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "Butterworth\nIIR BP Filter6"
	  SrcPort		  1
	  DstBlock		  "DSB-SC-ADM\npassband2"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "Mux"
	  SrcPort		  1
	  DstBlock		  "out_1"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "DSB-SC-ADM\npassband1"
	  SrcPort		  1
	  DstBlock		  "Mux"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "DSB-SC-ADM\npassband2"
	  SrcPort		  1
	  Points		  [15, -50]
	  DstBlock		  "Mux"
	  DstPort		  3
	}
	Line {
	  SrcBlock		  "DSB-SC-ADM\npassband"
	  SrcPort		  1
	  DstBlock		  "Mux"
	  DstPort		  1
	}
      }
    }
    Block {
      BlockType		      SubSystem
      Name		      "Frequency division\nthree-signal mux"
      Ports		      [1, 1]
      Position		      [260, 66, 325, 114]
      TreatAsAtomicUnit	      off
      MaskIconFrame	      on
      MaskIconOpaque	      on
      MaskIconRotate	      "none"
      MaskIconUnits	      "pixels"
      System {
	Name			"Frequency division\nthree-signal mux"
	Location		[241, 180, 676, 390]
	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		  [20, 100, 40, 120]
	  ShowName		  off
	}
	Block {
	  BlockType		  SubSystem
	  Name			  "Butterworth\nIIR BP Filter1"
	  Ports			  [1, 1]
	  Position		  [235, 28, 305, 62]
	  ShowName		  off
	  TreatAsAtomicUnit	  off
	  MaskType		  "butter(BP)"
	  MaskDescription	  "Butterworth band pass filter.\n(Requires Si"
"gnal Processing Toolbox)"
	  MaskHelp		  "IIR Butterworth band pass filter using MATL"
"AB's butter command."
	  MaskPromptString	  "Center frequency (0 to 1):|Bandwidth (0 to "
"1):|Order:|Sample time:"
	  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	  "bw = @2/2; [a,b,c,d]=butter(@3,[@1-bw,@1+bw"
"] ); ts=@4; [num,den]=ss2tf(a,b,c,d,1); if (@3 <= 8), [a,b,c,d]=tf2ss(num,den"
"); end; h=freqz(num,den,64); "
	  MaskDisplay		  "plot(1:64,abs(h))"
	  MaskIconFrame		  on
	  MaskIconOpaque	  on
	  MaskIconRotate	  "none"
	  MaskIconUnits		  "autoscale"
	  MaskValueString	  "F0*ts*2|0.05|7|ts"
	  System {
	    Name		    "Butterworth\nIIR BP Filter1"
	    Location		    [410, 195, 910, 455]
	    Open		    off
	    ModelBrowserVisibility  off
	    ModelBrowserWidth	    200
	    ScreenColor		    "white"
	    PaperOrientation	    "landscape"
	    PaperPositionMode	    "auto"
	    PaperType		    "usletter"
	    PaperUnits		    "inches"
	    ZoomFactor		    "100"
	    Block {
	      BlockType		      Inport
	      Name		      "In1"
	      Position		      [20, 80, 40, 100]
	    }
	    Block {
	      BlockType		      DiscreteStateSpace
	      Name		      "Butterworth\nIIR BP Filter1"
	      Position		      [90, 58, 160, 92]
	      ShowName		      off
	      A			      "a"
	      B			      "b"
	      C			      "c"
	      D			      "d"
	      SampleTime	      "ts"
	    }
	    Block {
	      BlockType		      Outport
	      Name		      "Out1"
	      Position		      [190, 80, 210, 100]
	      InitialOutput	      "0"
	    }
	    Line {
	      SrcBlock		      "Butterworth\nIIR BP Filter1"
	      SrcPort		      1
	      DstBlock		      "Out1"
	      DstPort		      1
	    }
	    Line {
	      SrcBlock		      "In1"
	      SrcPort		      1
	      DstBlock		      "Butterworth\nIIR BP Filter1"
	      DstPort		      1
	    }
	  }
	}
	Block {
	  BlockType		  SubSystem
	  Name			  "Butterworth\nIIR BP Filter2"
	  Ports			  [1, 1]
	  Position		  [235, 93, 305, 127]
	  ShowName		  off
	  TreatAsAtomicUnit	  off
	  MaskType		  "butter(BP)"
	  MaskDescription	  "Butterworth band pass filter.\n(Requires Si"
"gnal Processing Toolbox)"
	  MaskHelp		  "IIR Butterworth band pass filter using MATL"
"AB's butter command."
	  MaskPromptString	  "Center frequency (0 to 1):|Bandwidth (0 to "
"1):|Order:|Sample time:"
	  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	  "bw = @2/2; [a,b,c,d]=butter(@3,[@1-bw,@1+bw"
"] ); ts=@4; [num,den]=ss2tf(a,b,c,d,1); if (@3 <= 8), [a,b,c,d]=tf2ss(num,den"
"); end; h=freqz(num,den,64); "
	  MaskDisplay		  "plot(1:64,abs(h))"
	  MaskIconFrame		  on
	  MaskIconOpaque	  on
	  MaskIconRotate	  "none"
	  MaskIconUnits		  "autoscale"
	  MaskValueString	  "F2*ts*2|0.05|7|ts"
	  System {
	    Name		    "Butterworth\nIIR BP Filter2"
	    Location		    [410, 195, 910, 455]
	    Open		    off
	    ModelBrowserVisibility  off
	    ModelBrowserWidth	    200
	    ScreenColor		    "white"
	    PaperOrientation	    "landscape"
	    PaperPositionMode	    "auto"
	    PaperType		    "usletter"
	    PaperUnits		    "inches"
	    ZoomFactor		    "100"
	    Block {
	      BlockType		      Inport
	      Name		      "In1"
	      Position		      [20, 80, 40, 100]
	    }
	    Block {
	      BlockType		      DiscreteStateSpace
	      Name		      "Butterworth\nIIR BP Filter2"
	      Position		      [90, 58, 160, 92]
	      ShowName		      off
	      A			      "a"
	      B			      "b"
	      C			      "c"
	      D			      "d"
	      SampleTime	      "ts"
	    }
	    Block {
	      BlockType		      Outport
	      Name		      "Out1"
	      Position		      [190, 80, 210, 100]
	      InitialOutput	      "0"
	    }
	    Line {
	      SrcBlock		      "Butterworth\nIIR BP Filter2"
	      SrcPort		      1
	      DstBlock		      "Out1"
	      DstPort		      1
	    }
	    Line {
	      SrcBlock		      "In1"
	      SrcPort		      1
	      DstBlock		      "Butterworth\nIIR BP Filter2"
	      DstPort		      1
	    }
	  }
	}
	Block {
	  BlockType		  SubSystem
	  Name			  "Butterworth\nIIR BP Filter3"
	  Ports			  [1, 1]
	  Position		  [235, 163, 305, 197]
	  ShowName		  off
	  TreatAsAtomicUnit	  off
	  MaskType		  "butter(BP)"
	  MaskDescription	  "Butterworth band pass filter.\n(Requires Si"
"gnal Processing Toolbox)"
	  MaskHelp		  "IIR Butterworth band pass filter using MATL"
"AB's butter command."
	  MaskPromptString	  "Center frequency (0 to 1):|Bandwidth (0 to "
"1):|Order:|Sample time:"
	  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	  "bw = @2/2; [a,b,c,d]=butter(@3,[@1-bw,@1+bw"
"] ); ts=@4; [num,den]=ss2tf(a,b,c,d,1); if (@3 <= 8), [a,b,c,d]=tf2ss(num,den"
"); end; h=freqz(num,den,64); "
	  MaskDisplay		  "plot(1:64,abs(h))"
	  MaskIconFrame		  on
	  MaskIconOpaque	  on
	  MaskIconRotate	  "none"
	  MaskIconUnits		  "autoscale"
	  MaskValueString	  "F4*ts*2|0.05|7|ts"
	  System {
	    Name		    "Butterworth\nIIR BP Filter3"
	    Location		    [410, 195, 910, 455]
	    Open		    off
	    ModelBrowserVisibility  off
	    ModelBrowserWidth	    200
	    ScreenColor		    "white"
	    PaperOrientation	    "landscape"
	    PaperPositionMode	    "auto"
	    PaperType		    "usletter"
	    PaperUnits		    "inches"
	    ZoomFactor		    "100"
	    Block {
	      BlockType		      Inport
	      Name		      "In1"
	      Position		      [20, 80, 40, 100]
	    }
	    Block {
	      BlockType		      DiscreteStateSpace
	      Name		      "Butterworth\nIIR BP Filter3"
	      Position		      [90, 58, 160, 92]
	      ShowName		      off
	      A			      "a"
	      B			      "b"
	      C			      "c"
	      D			      "d"
	      SampleTime	      "ts"
	    }
	    Block {
	      BlockType		      Outport
	      Name		      "Out1"
	      Position		      [190, 80, 210, 100]
	      InitialOutput	      "0"
	    }
	    Line {
	      SrcBlock		      "Butterworth\nIIR BP Filter3"
	      SrcPort		      1
	      DstBlock		      "Out1"
	      DstPort		      1
	    }
	    Line {
	      SrcBlock		      "In1"
	      SrcPort		      1
	      DstBlock		      "Butterworth\nIIR BP Filter3"
	      DstPort		      1
	    }
	  }
	}
	Block {
	  BlockType		  Reference
	  Name			  "DSB-SC AM\npassband"
	  Ports			  [1, 1]
	  Position		  [125, 23, 205, 67]
	  ShowName		  off
	  SourceBlock		  "com_cdmo/DSB-SC AM\npassband"
	  SourceType		  "Passband DSB-SC AM"
	  MaskParam1		  "F0"
	  MaskParam2		  "0"
	  MaskParam3		  "ts"
	}
	Block {
	  BlockType		  Reference
	  Name			  "DSB-SC AM\npassband1"
	  Ports			  [1, 1]
	  Position		  [125, 88, 205, 132]
	  ShowName		  off
	  SourceBlock		  "com_cdmo/DSB-SC AM\npassband"
	  SourceType		  "Passband DSB-SC AM"
	  MaskParam1		  "F2"
	  MaskParam2		  "0"
	  MaskParam3		  "ts"
	}
	Block {
	  BlockType		  Reference
	  Name			  "DSB-SC AM\npassband2"
	  Ports			  [1, 1]
	  Position		  [125, 158, 205, 202]
	  ShowName		  off
	  SourceBlock		  "com_cdmo/DSB-SC AM\npassband"
	  SourceType		  "Passband DSB-SC AM"
	  MaskParam1		  "F4"
	  MaskParam2		  "0"
	  MaskParam3		  "ts"
	}
	Block {
	  BlockType		  Demux
	  Name			  "Demux"
	  Ports			  [1, 3]
	  Position		  [55, 92, 95, 128]
	  ShowName		  off
	  Outputs		  "3"
	}
	Block {
	  BlockType		  Sum
	  Name			  "Sum"
	  Ports			  [3, 1]
	  Position		  [365, 92, 385, 128]
	  ShowName		  off
	  Inputs		  "+++"
	}
	Block {
	  BlockType		  Outport
	  Name			  "out_1"
	  Position		  [400, 100, 420, 120]
	  ShowName		  off
	  InitialOutput		  "0"
	}
	Line {
	  SrcBlock		  "DSB-SC AM\npassband"
	  SrcPort		  1
	  DstBlock		  "Butterworth\nIIR BP Filter1"
	  DstPort		  1
	}
123

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