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📄 ds_spread spectrum.mdl

📁 用Simulink搭建的直接序列扩频(DS-SS)系统仿真模型
💻 MDL
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      outDtype		      "double"
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    Block {
      BlockType		      Reference
      Name		      "BPSK\nModulator\nBaseband1"
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      Position		      [545, 61, 620, 109]
      FontSize		      10
      SourceBlock	      "commdigbbndpm3/BPSK\nModulator\nBaseband"
      SourceType	      "BPSK Modulator Baseband"
      ShowPortLabels	      on
      Ph		      "0"
      outDtype		      "double"
    }
    Block {
      BlockType		      Reference
      Name		      "Bipolar to\nUnipolar\nConverter"
      Ports		      [1, 1]
      Position		      [430, 63, 510, 107]
      SourceBlock	      "commutil2/Bipolar to\nUnipolar\nConverter"
      SourceType	      "Bipolar to Unipolar Converter"
      ShowPortLabels	      on
      M			      "2"
      polarity		      "Positive"
    }
    Block {
      BlockType		      Reference
      Name		      "Bipolar to\nUnipolar\nConverter1"
      Ports		      [1, 1]
      Position		      [120, 263, 200, 307]
      Orientation	      "left"
      NamePlacement	      "alternate"
      SourceBlock	      "commutil2/Bipolar to\nUnipolar\nConverter"
      SourceType	      "Bipolar to Unipolar Converter"
      ShowPortLabels	      on
      M			      "2"
      polarity		      "Positive"
    }
    Block {
      BlockType		      Reference
      Name		      "Integrate\nand Dump"
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      Position		      [275, 263, 355, 307]
      Orientation	      "left"
      NamePlacement	      "alternate"
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      SourceType	      "Integrate and dump"
      obssamples	      "2"
      offsetsamples	      "0"
      nodump		      on
    }
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      BlockType		      Reference
      Name		      "PN Sequence\nGenerator"
      Ports		      [0, 1]
      Position		      [140, 148, 220, 192]
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      ini_sta		      "[0 0 0 0 0 1]"
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      sampPerFrame	      "1"
      reset		      off
      outDataType	      "double"
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      OutDataTypeMode	      "Inherit via internal rule"
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    }
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      Position		      [20, 53, 100, 97]
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      SourceType	      "Random Integer Generator"
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      seed		      "67"
      Ts		      "1"
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      sampPerFrame	      "1"
      orient		      off
      outDataType	      "double"
    }
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      Orientation	      "left"
      Floating		      off
      Location		      [61, 276, 851, 536]
      Open		      off
      NumInputPorts	      "2"
      List {
	ListType		AxesTitles
	axes1			"%<SignalLabel>"
	axes2			"%<SignalLabel>"
      }
      YMin		      "-5~-5"
      YMax		      "5~5"
      DataFormat	      "StructureWithTime"
      SampleTime	      "0"
    }
    Block {
      BlockType		      Scope
      Name		      "Scope1"
      Ports		      [2]
      Position		      [485, 16, 515, 49]
      Floating		      off
      Location		      [-10, 338, 923, 656]
      Open		      off
      NumInputPorts	      "2"
      List {
	ListType		AxesTitles
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	axes2			"%<SignalLabel>"
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      YMin		      "-5~-5"
      YMax		      "5~5"
      SaveName		      "ScopeData1"
      DataFormat	      "StructureWithTime"
      SampleTime	      "0"
    }
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      BlockType		      Signum
      Name		      "Sign"
      Position		      [225, 270, 255, 300]
      Orientation	      "left"
    }
    Block {
      BlockType		      Reference
      Name		      "Unipolar to\nBipolar\nConverter"
      Ports		      [1, 1]
      Position		      [190, 53, 270, 97]
      SourceBlock	      "commutil2/Unipolar to\nBipolar\nConverter"
      SourceType	      "Unipolar to Bipolar Converter"
      ShowPortLabels	      on
      M			      "2"
      polarity		      "Positive"
    }
    Block {
      BlockType		      Reference
      Name		      "Unipolar to\nBipolar\nConverter1"
      Ports		      [1, 1]
      Position		      [435, 268, 515, 312]
      Orientation	      "left"
      SourceBlock	      "commutil2/Unipolar to\nBipolar\nConverter"
      SourceType	      "Unipolar to Bipolar Converter"
      ShowPortLabels	      on
      M			      "2"
      polarity		      "Positive"
    }
    Block {
      BlockType		      Reference
      Name		      "Unipolar to\nBipolar\nConverter2"
      Ports		      [1, 1]
      Position		      [245, 148, 325, 192]
      SourceBlock	      "commutil2/Unipolar to\nBipolar\nConverter"
      SourceType	      "Unipolar to Bipolar Converter"
      ShowPortLabels	      on
      M			      "2"
      polarity		      "Positive"
    }
    Line {
      SrcBlock		      "Random Integer\nGenerator"
      SrcPort		      1
      Points		      [20, 0]
      Branch {
	DstBlock		"Unipolar to\nBipolar\nConverter"
	DstPort			1
      }
      Branch {
	Points			[0, 145]
	DstBlock		"Scope"
	DstPort			1
      }
    }
    Line {
      SrcBlock		      "Unipolar to\nBipolar\nConverter"
      SrcPort		      1
      Points		      [55, 0]
      Branch {
	DstBlock		"Product"
	DstPort			1
      }
      Branch {
	Points			[0, -50]
	DstBlock		"Scope1"
	DstPort			1
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    }
    Line {
      SrcBlock		      "Product"
      SrcPort		      1
      Points		      [5, 0]
      Branch {
	DstBlock		"Bipolar to\nUnipolar\nConverter"
	DstPort			1
      }
      Branch {
	Points			[0, -45]
	DstBlock		"Scope1"
	DstPort			2
      }
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    Line {
      SrcBlock		      "Bipolar to\nUnipolar\nConverter"
      SrcPort		      1
      DstBlock		      "BPSK\nModulator\nBaseband1"
      DstPort		      1
    }
    Line {
      SrcBlock		      "BPSK\nModulator\nBaseband1"
      SrcPort		      1
      Points		      [40, 0]
      DstBlock		      "AWGN\nChannel"
      DstPort		      1
    }
    Line {
      SrcBlock		      "BPSK\nDemodulator\nBaseband1"
      SrcPort		      1
      DstBlock		      "Unipolar to\nBipolar\nConverter1"
      DstPort		      1
    }
    Line {
      SrcBlock		      "Unipolar to\nBipolar\nConverter1"
      SrcPort		      1
      DstBlock		      "Product1"
      DstPort		      2
    }
    Line {
      SrcBlock		      "Integrate\nand Dump"
      SrcPort		      1
      DstBlock		      "Sign"
      DstPort		      1
    }
    Line {
      SrcBlock		      "Bipolar to\nUnipolar\nConverter1"
      SrcPort		      1
      Points		      [-15, 0; 0, -50]
      DstBlock		      "Scope"
      DstPort		      2
    }
    Line {
      SrcBlock		      "PN Sequence\nGenerator"
      SrcPort		      1
      DstBlock		      "Unipolar to\nBipolar\nConverter2"
      DstPort		      1
    }
    Line {
      SrcBlock		      "Unipolar to\nBipolar\nConverter2"
      SrcPort		      1
      Points		      [20, 0]
      Branch {
	Points			[0, -80]
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      DstBlock		      "Integrate\nand Dump"
      DstPort		      1
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    Line {
      SrcBlock		      "Sign"
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      DstBlock		      "Bipolar to\nUnipolar\nConverter1"
      DstPort		      1
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      Points		      [0, 40]
      DstBlock		      "BPSK\nDemodulator\nBaseband1"
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}

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