xtsh.mdl

信号实验常用的simulink模型和mfile,可直接在matlan下运行。

	  Position		  [45, 41, 65, 69]
	  FontName		  "宋体"
	  Value			  "1"
	}
	Block {
	  BlockType		  Sin
	  Name			  "调制信号1"
	  Position		  [45, 92, 70, 118]
	  FontName		  "宋体"
	  Amplitude		  "1"
	  Frequency		  "10"
	  Phase			  "0"
	  SampleTime		  "0.001"
	}
	Block {
	  BlockType		  Gain
	  Name			  "放大器"
	  Position		  [85, 90, 110, 120]
	  FontName		  "宋体"
	  Gain			  "0.5"
	  SaturateOnIntegerOverflow on
	}
	Block {
	  BlockType		  Sum
	  Name			  "加法器"
	  Ports			  [2, 1, 0, 0, 0]
	  Position		  [135, 49, 155, 76]
	  FontName		  "宋体"
	  IconShape		  "rectangular"
	  Inputs		  "++"
	  SaturateOnIntegerOverflow on
	}
	Block {
	  BlockType		  Outport
	  Name			  "out_1"
	  Position		  [185, 55, 205, 75]
	  Port			  "1"
	  OutputWhenDisabled	  "held"
	  InitialOutput		  "[]"
	}
	Line {
	  SrcBlock		  "常数"
	  SrcPort		  1
	  DstBlock		  "加法器"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "放大器"
	  SrcPort		  1
	  Points		  [0, -35]
	  DstBlock		  "加法器"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "调制信号1"
	  SrcPort		  1
	  DstBlock		  "放大器"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "加法器"
	  SrcPort		  1
	  DstBlock		  "out_1"
	  DstPort		  1
	}
      }
    }
    Block {
      BlockType		      SubSystem
      Name		      "信号2"
      Ports		      [0, 1, 0, 0, 0]
      Position		      [40, 191, 65, 219]
      FontName		      "宋体"
      FontSize		      12
      ShowPortLabels	      off
      MaskType		      "Pulse Generator"
      MaskDescription	      "Pulse Generator."
      MaskHelp		      "Pulse generator which ensures pulse\\ntransitio"
"ns are hit. Provides a vector of pulses when the height is entered as a vecto"
"r.\\nUnmask to see how it works."
      MaskPromptString	      "Pulse period (secs):|Pulse width:|Pulse height:"
"|Pulse start time:"
      MaskStyleString	      "edit,edit,edit,edit"
      MaskTunableValueString  "on,on,on,on"
      MaskCallbackString      "|||"
      MaskEnableString	      "on,on,on,on"
      MaskVisibilityString    "on,on,on,on"
      MaskInitialization      "Ts=@1; du=@2; ht=@3; stt=@4; ini=ones(length(ht"
"),1); st1=rem(stt,Ts); st2=rem(stt+du,Ts);if(Ts<=1.2*du),ini=zeros(length(ht)"
",1);end;"
      MaskDisplay	      "plot(0,0,100,100,[90,75,75,60,60,35,35,20,20,10"
"],[20,20,80,80,20,20,80,80,20,20])"
      MaskIconFrame	      on
      MaskIconOpaque	      on
      MaskIconRotate	      "none"
      MaskIconUnits	      "autoscale"
      MaskValueString	      "1|.5|1|0.1"
      System {
	Name			"信号2"
	Location		[158, 441, 759, 682]
	Open			off
	ModelBrowserVisibility	off
	ModelBrowserWidth	200
	ScreenColor		"automatic"
	PaperOrientation	"landscape"
	PaperPositionMode	"auto"
	PaperType		"usletter"
	PaperUnits		"inches"
	ZoomFactor		"100"
	AutoZoom		on
	Block {
	  BlockType		  Clock
	  Name			  "Clock1"
	  Position		  [295, 100, 315, 120]
	  ShowName		  off
	  DisplayTime		  off
	  Decimation		  "10"
	}
	Block {
	  BlockType		  Constant
	  Name			  "Constant"
	  Position		  [25, 30, 45, 50]
	  Value			  "1"
	}
	Block {
	  BlockType		  Constant
	  Name			  "Constant1"
	  Position		  [295, 149, 320, 171]
	  Value			  "stt"
	}
	Block {
	  BlockType		  Gain
	  Name			  "Gain"
	  Position		  [510, 102, 535, 128]
	  ShowName		  off
	  Gain			  "ht"
	  SaturateOnIntegerOverflow on
	}
	Block {
	  BlockType		  Logic
	  Name			  "Logical\nOperator"
	  Ports			  [2, 1, 0, 0, 0]
	  Position		  [285, 38, 315, 62]
	  Operator		  "XOR"
	  Inputs		  "2"
	}
	Block {
	  BlockType		  Logic
	  Name			  "Logical\nOperator1"
	  Ports			  [1, 1, 0, 0, 0]
	  Position		  [355, 38, 385, 62]
	  Operator		  "NOT"
	  Inputs		  "1"
	}
	Block {
	  BlockType		  Product
	  Name			  "Product"
	  Ports			  [2, 1, 0, 0, 0]
	  Position		  [455, 105, 480, 125]
	  ShowName		  off
	  Inputs		  "2"
	  SaturateOnIntegerOverflow on
	}
	Block {
	  BlockType		  RelationalOperator
	  Name			  "Relational\noperator"
	  Position		  [370, 102, 400, 133]
	  ShowName		  off
	  Operator		  ">="
	}
	Block {
	  BlockType		  Sum
	  Name			  "Sum"
	  Ports			  [2, 1, 0, 0, 0]
	  Position		  [135, 35, 155, 55]
	  ShowName		  off
	  IconShape		  "rectangular"
	  Inputs		  "+-"
	  SaturateOnIntegerOverflow on
	}
	Block {
	  BlockType		  Sum
	  Name			  "Sum1"
	  Ports			  [2, 1, 0, 0, 0]
	  Position		  [130, 120, 150, 140]
	  ShowName		  off
	  IconShape		  "rectangular"
	  Inputs		  "+-"
	  SaturateOnIntegerOverflow on
	}
	Block {
	  BlockType		  UnitDelay
	  Name			  "Unit Delay"
	  Position		  [145, 75, 195, 95]
	  Orientation		  "left"
	  X0			  "0"
	  SampleTime		  "[Ts,st1]"
	}
	Block {
	  BlockType		  UnitDelay
	  Name			  "Unit Delay1"
	  Position		  [140, 165, 190, 185]
	  Orientation		  "left"
	  X0			  "ini"
	  SampleTime		  "[Ts,st2]"
	}
	Block {
	  BlockType		  Outport
	  Name			  "out_1"
	  Position		  [560, 105, 580, 125]
	  ShowName		  off
	  Port			  "1"
	  OutputWhenDisabled	  "held"
	  InitialOutput		  "[]"
	}
	Line {
	  SrcBlock		  "Unit Delay1"
	  SrcPort		  1
	  Points		  [-35, 0; 0, -40]
	  DstBlock		  "Sum1"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "Sum1"
	  SrcPort		  1
	  Points		  [0, 0]
	  Branch {
	    Points		    [90, 0; 0, -75]
	    DstBlock		    "Logical\nOperator"
	    DstPort		    2
	  }
	  Branch {
	    Points		    [55, 0; 0, 45]
	    DstBlock		    "Unit Delay1"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "Constant"
	  SrcPort		  1
	  Points		  [0, 0]
	  Branch {
	    Points		    [20, 0; 0, 85]
	    DstBlock		    "Sum1"
	    DstPort		    1
	  }
	  Branch {
	    DstBlock		    "Sum"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "Sum"
	  SrcPort		  1
	  Points		  [0, 0]
	  Branch {
	    DstBlock		    "Logical\nOperator"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [70, 0; 0, 40]
	    DstBlock		    "Unit Delay"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "Unit Delay"
	  SrcPort		  1
	  Points		  [-35, 0; 0, -35]
	  DstBlock		  "Sum"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "Clock1"
	  SrcPort		  1
	  DstBlock		  "Relational\noperator"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "Relational\noperator"
	  SrcPort		  1
	  DstBlock		  "Product"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "Product"
	  SrcPort		  1
	  DstBlock		  "Gain"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "Gain"
	  SrcPort		  1
	  DstBlock		  "out_1"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "Constant1"
	  SrcPort		  1
	  Points		  [20, 0; 0, -35]
	  DstBlock		  "Relational\noperator"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "Logical\nOperator"
	  SrcPort		  1
	  DstBlock		  "Logical\nOperator1"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "Logical\nOperator1"
	  SrcPort		  1
	  Points		  [40, 0; 0, 60]
	  DstBlock		  "Product"
	  DstPort		  1
	}
      }
    }
    Line {
      SrcBlock		      " 载波"
      SrcPort		      1
      DstBlock		      "乘法器"
      DstPort		      1
    }
    Line {
      SrcBlock		      "乘法器"
      SrcPort		      1
      Points		      [10, 0]
      Branch {
	DstBlock		"二阶系统"
	DstPort			1
      }
      Branch {
	Points			[125, 0]
	Branch {
	  DstBlock		  "示波器\n（输入信号）"
	  DstPort		  1
	}
	Branch {
	  Points		  [0, 50]
	  DstBlock		  "频谱分析仪\n（系统的频率特性）"
	  DstPort		  1
	}
      }
    }
    Line {
      SrcBlock		      "二阶系统"
      SrcPort		      1
      Points		      [15, 0]
      Branch {
	DstBlock		"示波器\n（输出信号）"
	DstPort			1
      }
      Branch {
	Points			[0, -55]
	DstBlock		"频谱分析仪\n（系统的频率特性）"
	DstPort			2
      }
    }
    Line {
      SrcBlock		      "信号1"
      SrcPort		      1
      Points		      [10, 0; 0, -40]
      DstBlock		      "乘法器"
      DstPort		      2
    }
    Annotation {
      Position		      [122, 32]
      VerticalAlignment	      "top"
      ForegroundColor	      "blue"
      Text		      "系统的谐振特性"
      FontName		      "楷体_GB2312"
      FontSize		      16
      FontWeight	      "bold"
      FontAngle		      "italic"
    }
  }
}