am_dsb_sc_modulation.mdl

这是利用matlab7.0软件对通信信号进行调制simulink仿真

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	      CombineOutputUpdateFcns off
	      SuppressErrorStatus     off
	      IncludeFileDelimiter    "Auto"
	      ERTCustomFileBanners    off
	      SupportAbsoluteTime     on
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	      SupportContinuousTime   on
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	      ExtMode		      off
	      ExtModeStaticAlloc      off
	      ExtModeTesting	      off
	      ExtModeStaticAllocSize  1000000
	      ExtModeTransport	      0
	      ExtModeMexFile	      "ext_comm"
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	      RTWCAPIParams	      off
	      RTWCAPIStates	      off
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    Orientation		    "right"
    ForegroundColor	    "black"
    BackgroundColor	    "white"
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    NamePlacement	    "normal"
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    FontSize		    10
    FontWeight		    "normal"
    FontAngle		    "normal"
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  BlockParameterDefaults {
    Block {
      BlockType		      Clock
      DisplayTime	      off
    }
    Block {
      BlockType		      Constant
      Value		      "1"
      VectorParams1D	      on
      OutDataTypeMode	      "Inherit from 'Constant value'"
      OutDataType	      "sfix(16)"
      ConRadixGroup	      "Use specified scaling"
      OutScaling	      "2^0"
      SampleTime	      "inf"
    }
    Block {
      BlockType		      DataTypeConversion
      OutDataTypeMode	      "Inherit via back propagation"
      OutDataType	      "sfix(16)"
      OutScaling	      "2^0"
      LockScale		      off
      ConvertRealWorld	      "Real World Value (RWV)"
      RndMeth		      "Zero"
      SaturateOnIntegerOverflow	on
      SampleTime	      "-1"
    }
    Block {
      BlockType		      FrameConversion
      OutFrame		      "Frame based"
    }
    Block {
      BlockType		      Gain
      Gain		      "1"
      Multiplication	      "Element-wise(K.*u)"
      ParameterDataTypeMode   "Same as input"
      ParameterDataType	      "sfix(16)"
      ParameterScalingMode    "Best Precision: Matrix-wise"
      ParameterScaling	      "2^0"
      OutDataTypeMode	      "Same as input"
      OutDataType	      "sfix(16)"
      OutScaling	      "2^0"
      LockScale		      off
      RndMeth		      "Floor"
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    Block {
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      PortDimensions	      "-1"
      SampleTime	      "-1"
      DataType		      "auto"
      OutDataType	      "sfix(16)"
      OutScaling	      "2^0"
      SignalType	      "auto"
      SamplingMode	      "auto"
      Interpolate	      on
    }
    Block {
      BlockType		      Math
      Operator		      "exp"
      OutputSignalType	      "auto"
      SampleTime	      "-1"
      OutDataTypeMode	      "Same as first input"
      OutDataType	      "sfix(16)"
      OutScaling	      "2^0"
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      RndMeth		      "Floor"
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    }
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      DataType		      "auto"
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      SignalType	      "auto"
      SamplingMode	      "auto"
      OutputWhenDisabled      "held"
      InitialOutput	      "[]"
    }
    Block {
      BlockType		      Product
      Inputs		      "2"
      Multiplication	      "Element-wise(.*)"
      InputSameDT	      on
      OutDataTypeMode	      "Same as first input"
      OutDataType	      "sfix(16)"
      OutScaling	      "2^0"
      LockScale		      off
      RndMeth		      "Zero"
      SaturateOnIntegerOverflow	on
      SampleTime	      "-1"
    }
    Block {
      BlockType		      Scope
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      YMin		      "-5"
      YMax		      "5"
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      SaveName		      "ScopeData"
      LimitDataPoints	      on
      MaxDataPoints	      "5000"
      Decimation	      "1"
      SampleInput	      off
      SampleTime	      "0"
    }
    Block {
      BlockType		      "S-Function"
      FunctionName	      "system"
      PortCounts	      "[]"
      SFunctionModules	      "''"
    }
    Block {
      BlockType		      SignalGenerator
      WaveForm		      "sine"
      TimeSource	      "Use simulation time"
      Amplitude		      "1"
      Frequency		      "1"
      Units		      "Hertz"
      VectorParams1D	      on
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    Block {
      BlockType		      SubSystem
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      InputSameDT	      on
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      OutDataType	      "sfix(16)"
      OutScaling	      "2^0"
      LockScale		      off
      RndMeth		      "Floor"
      SaturateOnIntegerOverflow	on
      SampleTime	      "-1"
    }
    Block {
      BlockType		      Trigonometry
      Operator		      "sin"
      OutputSignalType	      "auto"
      SampleTime	      "-1"
    }
    Block {
      BlockType		      ZeroOrderHold
      SampleTime	      "1"
    }
  }
  AnnotationDefaults {
    HorizontalAlignment	    "center"
    VerticalAlignment	    "middle"
    ForegroundColor	    "black"
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  LineDefaults {
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    FontWeight		    "normal"
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  }
  System {
    Name		    "AM_DSB_SC_Modulation"
    Location		    [454, 312, 1034, 594]
    Open		    on
    ModelBrowserVisibility  off
    ModelBrowserWidth	    200
    ScreenColor		    "white"
    PaperOrientation	    "landscape"
    PaperPositionMode	    "auto"
    PaperType		    "A4"
    PaperUnits		    "centimeters"
    ZoomFactor		    "100"
    ReportName		    "simulink-default.rpt"
    Block {
      BlockType		      Reference
      Name		      "DSBSC AM\nModulator\nPassband"
      Ports		      [1, 1]
      Position		      [160, 67, 235, 113]
      SourceBlock	      "commanapbnd2/DSBSC AM\nModulator\nPassband"
      SourceType	      "DSBSC AM Modulator Passband"
      ShowPortLabels	      on
      Fc		      "15"
      Ph		      "pi/2"
    }
    Block {
      BlockType		      Scope
      Name		      "Scope"
      Ports		      [1]
      Position		      [390, 74, 420, 106]
      Location		      [83, 216, 865, 682]
      Open		      off
      NumInputPorts	      "1"
      List {
	ListType		AxesTitles
	axes1			"%<SignalLabel>"
      }
      YMin		      "-1.2"
      YMax		      "1.2"
      DataFormat	      "StructureWithTime"
    }
    Block {
      BlockType		      SignalGenerator
      Name		      "Signal\nGenerator"
      Ports		      [0, 1]
      Position		      [75, 75, 105, 105]
      WaveForm		      "sawtooth"
      Frequency		      "0.5"
    }
    Block {
      BlockType		      Reference
      Name		      "Spectrum\nScope"
      Ports		      [1]
      Position		      [435, 139, 480, 191]
      SourceBlock	      "dspsnks4/Spectrum\nScope"
      SourceType	      "Spectrum Scope"
      ShowPortLabels	      off
      ScopeProperties	      on
      Domain		      "Frequency"
      HorizSpan		      "1"
      UseBuffer		      on
      BufferSize	      "256"
      Overlap		      "128"
      inpFftLenInherit	      on
      FFTlength		      "256"
      numAvg		      "4"
      DisplayProperties	      off
      AxisGrid		      on
      Memory		      off
      FrameNumber	      on
      AxisLegend	      off
      AxisZoom		      off
      OpenScopeAtSimStart     on
      OpenScopeImmediately    off
      FigPos		      "get(0,'defaultfigureposition')"
      AxisProperties	      off
      XUnits		      "Hertz"
      XRange		      "[0...Fs/2]"
      InheritXIncr	      off
      XIncr		      "1/60"
      XLabel		      "Samples"
      YUnits		      "dB"
      YMin		      "-5"
      YMax		      "8"
      YLabel		      "Magnitude, dB"
      LineProperties	      off
      LineColors	      "[0 0 1]"
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    Block {
      BlockType		      ZeroOrderHold
      Name		      "Zero-Order\nHold"
      Position		      [320, 146, 355, 184]
      SampleTime	      "1/60"
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      SrcBlock		      "Signal\nGenerator"
      SrcPort		      1
      DstBlock		      "DSBSC AM\nModulator\nPassband"
      DstPort		      1
    }
    Line {
      SrcBlock		      "DSBSC AM\nModulator\nPassband"
      SrcPort		      1
      Points		      [0, 0; 35, 0]
      Branch {
	Points			[0, 75]
	DstBlock		"Zero-Order\nHold"
	DstPort			1
      }
      Branch {
	DstBlock		"Scope"
	DstPort			1
      }
    }
    Line {
      SrcBlock		      "Zero-Order\nHold"
      SrcPort		      1
      DstBlock		      "Spectrum\nScope"
      DstPort		      1
    }
  }
}