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📄 mmse_mpsk.mdl

📁 This an adaptive receiver for a direct-sequence spread spectrum (DS-SS) system over an AWGN channel.
💻 MDL
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	  Name			  "Taps"
	  Position		  [560, 110, 580, 130]
	  Port			  "2"
	  OutputWhenDisabled	  "held"
	  InitialOutput		  "0"
	}
	Line {
	  SrcBlock		  "Frame Status\nConversion"
	  SrcPort		  1
	  Points		  [5, 0]
	  Branch {
	    DstBlock		    "Dot Product"
	    DstPort		    2
	  }
	  Branch {
	    Points		    [0, 55]
	    DstBlock		    "LMS\nCoefficient Update"
	    DstPort		    1
	  }
	}
	Line {
	  Labels		  [0, 0; 0, 0]
	  SrcBlock		  "Check Signal\nAttributes2"
	  SrcPort		  1
	  DstBlock		  "LMS\nCoefficient Update"
	  DstPort		  3
	}
	Line {
	  SrcBlock		  "Adapt"
	  SrcPort		  1
	  DstBlock		  "Check Signal\nAttributes2"
	  DstPort		  1
	}
	Line {
	  Labels		  [0, 0; 0, 0; 0, 0]
	  SrcBlock		  "Check Signal\nAttributes1"
	  SrcPort		  1
	  Points		  [55, 0; 0, 25]
	  DstBlock		  "LMS\nCoefficient Update"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "Err"
	  SrcPort		  1
	  DstBlock		  "Check Signal\nAttributes1"
	  DstPort		  1
	}
	Line {
	  Labels		  [0, 0; 0, 0; 0, 0]
	  SrcBlock		  "Check Signal\nAttributes"
	  SrcPort		  1
	  DstBlock		  "Rebuffer"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "In"
	  SrcPort		  1
	  DstBlock		  "Check Signal\nAttributes"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "Rebuffer"
	  SrcPort		  1
	  DstBlock		  "Frame Status\nConversion"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "LMS\nCoefficient Update"
	  SrcPort		  1
	  Points		  [20, 0]
	  Branch {
	    Points		    [0, -85]
	    DstBlock		    "Dot Product"
	    DstPort		    1
	  }
	  Branch {
	    DstBlock		    "Taps"
	    DstPort		    1
	  }
	}
	Line {
	  Name			  "y[k]"
	  Labels		  [0, 0; 0, 0; 0, 0]
	  SrcBlock		  "Dot Product"
	  SrcPort		  1
	  DstBlock		  "Out"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "Step-size"
	  SrcPort		  1
	  DstBlock		  "Check Signal\nAttributes3"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "Check Signal\nAttributes3"
	  SrcPort		  1
	  Points		  [55, 0; 0, -35]
	  DstBlock		  "LMS\nCoefficient Update"
	  DstPort		  4
	}
      }
    }
    Block {
      BlockType		      Display
      Name		      "Performance measure"
      Ports		      [1]
      Position		      [630, 18, 720, 82]
      Format		      "short"
      Decimation	      "1"
      Floating		      off
      SampleTime	      "-1"
    }
    Block {
      BlockType		      Sum
      Name		      "Sum1"
      Ports		      [2, 1]
      Position		      [320, 210, 340, 230]
      Orientation	      "left"
      ShowName		      off
      IconShape		      "round"
      Inputs		      "|-+"
      SaturateOnIntegerOverflow	on
    }
    Block {
      BlockType		      Terminator
      Name		      "Terminator"
      Position		      [385, 80, 405, 100]
      ShowName		      off
    }
    Block {
      BlockType		      SubSystem
      Name		      "Transmitter"
      RequirementInfo	      "{ }"
      Ports		      [0, 1]
      Position		      [20, 30, 90, 80]
      ShowPortLabels	      on
      TreatAsAtomicUnit	      off
      RTWSystemCode	      "Auto"
      RTWFcnNameOpts	      "Auto"
      RTWFileNameOpts	      "Auto"
      System {
	Name			"Transmitter"
	Location		[279, 626, 762, 848]
	Open			off
	ModelBrowserVisibility	off
	ModelBrowserWidth	200
	ScreenColor		"automatic"
	PaperOrientation	"landscape"
	PaperPositionMode	"auto"
	PaperType		"usletter"
	PaperUnits		"inches"
	ZoomFactor		"100"
	Block {
	  BlockType		  SubSystem
	  Name			  "Data generator"
	  Ports			  [0, 1]
	  Position		  [15, 41, 80, 79]
	  ShowPortLabels	  on
	  TreatAsAtomicUnit	  off
	  RTWSystemCode		  "Auto"
	  RTWFcnNameOpts	  "Auto"
	  RTWFileNameOpts	  "Auto"
	  System {
	    Name		    "Data generator"
	    Location		    [307, 448, 729, 608]
	    Open		    off
	    ModelBrowserVisibility  off
	    ModelBrowserWidth	    200
	    ScreenColor		    "automatic"
	    PaperOrientation	    "landscape"
	    PaperPositionMode	    "auto"
	    PaperType		    "usletter"
	    PaperUnits		    "inches"
	    ZoomFactor		    "100"
	    Block {
	      BlockType		      Reference
	      Name		      "Buffer"
	      Ports		      [1, 1]
	      Position		      [130, 25, 180, 75]
	      SourceBlock	      "dspbuff3/Buffer"
	      SourceType	      "Buffer"
	      N			      "log2(M)"
	      V			      "0"
	      ic		      "0"
	    }
	    Block {
	      BlockType		      Reference
	      Name		      "Convert 2-D to 1-D"
	      Ports		      [1, 1]
	      Position		      [270, 32, 330, 68]
	      SourceBlock	      "dspsigattribs/Convert 2-D to 1-D"
	      SourceType	      "Convert 2-D to 1-D"
	    }
	    Block {
	      BlockType		      Reference
	      Name		      "Frame Status\nConversion"
	      Ports		      [1, 1]
	      Position		      [200, 34, 250, 66]
	      SourceBlock	      "dspsigattribs/Frame Status\nConversion"
	      SourceType	      "Frame Status Conversion"
	      growRefPort	      off
	      outframe		      "Sample-based"
	    }
	    Block {
	      BlockType		      Goto
	      Name		      "Goto4"
	      Position		      [145, 112, 190, 128]
	      ShowName		      off
	      GotoTag		      "TxData"
	      TagVisibility	      "global"
	    }
	    Block {
	      BlockType		      Reference
	      Name		      "Random-Integer\nGenerator"
	      Ports		      [0, 1]
	      Position		      [15, 28, 95, 72]
	      SourceBlock	      "commsource2/Random-Integer\nGenerator"
	      SourceType	      "Random-Integer Generator"
	      mul		      "2"
	      seed		      "24680"
	      Ts		      "Tb/(log2(M))"
	      frameBased	      off
	      sampPerFrame	      "2"
	      orient		      off
	    }
	    Block {
	      BlockType		      Outport
	      Name		      "Out1"
	      Position		      [355, 43, 385, 57]
	      Port		      "1"
	      OutputWhenDisabled      "held"
	      InitialOutput	      "[]"
	    }
	    Line {
	      SrcBlock		      "Convert 2-D to 1-D"
	      SrcPort		      1
	      DstBlock		      "Out1"
	      DstPort		      1
	    }
	    Line {
	      SrcBlock		      "Frame Status\nConversion"
	      SrcPort		      1
	      DstBlock		      "Convert 2-D to 1-D"
	      DstPort		      1
	    }
	    Line {
	      SrcBlock		      "Buffer"
	      SrcPort		      1
	      DstBlock		      "Frame Status\nConversion"
	      DstPort		      1
	    }
	    Line {
	      SrcBlock		      "Random-Integer\nGenerator"
	      SrcPort		      1
	      Points		      [5, 0]
	      Branch {
		Points			[0, 70]
		DstBlock		"Goto4"
		DstPort			1
	      }
	      Branch {
		DstBlock		"Buffer"
		DstPort			1
	      }
	    }
	  }
	}
	Block {
	  BlockType		  Goto
	  Name			  "Goto4"
	  Position		  [240, 16, 330, 34]
	  ShowName		  off
	  GotoTag		  "TrainingData"
	  TagVisibility		  "global"
	}
	Block {
	  BlockType		  Reference
	  Name			  "M-PSK\nModulator\nBaseband"
	  Ports			  [1, 1]
	  Position		  [110, 34, 185, 86]
	  SourceBlock		  "commdigbbndpm2/M-PSK\nModulator\nBaseband"
	  SourceType		  "M-PSK Modulator Baseband"
	  M			  "M"
	  InType		  "Bit"
	  Enc			  "Gray"
	  Ph			  "pi/M"
	  numSamp		  "1"
	}
	Block {
	  BlockType		  Reference
	  Name			  "PN Sequence\nGenerator"
	  Ports			  [0, 1]
	  Position		  [15, 123, 95, 167]
	  SourceBlock		  "commsource2/PN Sequence\nGenerator"
	  SourceType		  "PN Sequence Generator"
	  poly			  "[1 1 0 1 1]"
	  ini_sta		  "[1 1 0 1]"
	  Ts			  "Tc"
	  frameBased		  off
	  sampPerFrame		  "1"
	}
	Block {
	  BlockType		  Product
	  Name			  "Product"
	  Ports			  [2, 1]
	  Position		  [350, 51, 395, 84]
	  Inputs		  "2"
	  Multiplication	  "Element-wise(.*)"
	  SaturateOnIntegerOverflow on
	}
	Block {
	  BlockType		  Reference
	  Name			  "Unipolar to\nBipolar\nConverter"
	  Ports			  [1, 1]
	  Position		  [230, 81, 310, 129]
	  ShowName		  off
	  SourceBlock		  "commutil2/Unipolar to\nBipolar\nConverter"
	  SourceType		  "Unipolar to Bipolar Converter"
	  M			  "2"
	  polarity		  "Positive"
	}
	Block {
	  BlockType		  Outport
	  Name			  "TxSig"
	  Position		  [430, 63, 460, 77]
	  Port			  "1"
	  OutputWhenDisabled	  "held"
	  InitialOutput		  "[]"
	}
	Line {
	  SrcBlock		  "Data generator"
	  SrcPort		  1
	  DstBlock		  "M-PSK\nModulator\nBaseband"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "PN Sequence\nGenerator"
	  SrcPort		  1
	  Points		  [90, 0; 0, -40]
	  DstBlock		  "Unipolar to\nBipolar\nConverter"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "M-PSK\nModulator\nBaseband"
	  SrcPort		  1
	  Points		  [15, 0]
	  Branch {
	    DstBlock		    "Product"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [0, -35]
	    DstBlock		    "Goto4"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "Product"
	  SrcPort		  1
	  DstBlock		  "TxSig"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "Unipolar to\nBipolar\nConverter"
	  SrcPort		  1
	  Points		  [10, 0; 0, -30]
	  DstBlock		  "Product"
	  DstPort		  2
	}
      }
    }
    Line {
      SrcBlock		      "Transmitter"
      SrcPort		      1
      DstBlock		      "AWGN\nChannel"
      DstPort		      1
    }
    Line {
      SrcBlock		      "AWGN\nChannel"
      SrcPort		      1
      DstBlock		      "LMS\nAdaptive DS-SS Receiver"
      DstPort		      1
    }
    Line {
      SrcBlock		      "LMS\nAdaptive DS-SS Receiver"
      SrcPort		      1
      Points		      [50, 0]
      Branch {
	Points			[0, 160]
	DstBlock		"Sum1"
	DstPort			1
      }
      Branch {
	DstBlock		"Decoding"
	DstPort			1
      }
    }
    Line {
      SrcBlock		      "Sum1"
      SrcPort		      1
      Points		      [-75, 0; 0, -65]
      Branch {
	Points			[0, -80]
	DstBlock		"LMS\nAdaptive DS-SS Receiver"
	DstPort			2
      }
      Branch {
	DstBlock		"Complex to\nMagnitude"
	DstPort			1
      }
    }
    Line {
      SrcBlock		      "From3"
      SrcPort		      1
      DstBlock		      "Integer Delay1"
      DstPort		      1
    }
    Line {
      SrcBlock		      "Integer Delay1"
      SrcPort		      1
      Points		      [-35, 0]
      DstBlock		      "Sum1"
      DstPort		      2
    }
    Line {
      SrcBlock		      "Complex to\nMagnitude"
      SrcPort		      1
      DstBlock		      "Error Signal"
      DstPort		      1
    }
    Line {
      SrcBlock		      "DSP\nConstant"
      SrcPort		      1
      DstBlock		      "LMS\nAdaptive DS-SS Receiver"
      DstPort		      3
    }
    Line {
      SrcBlock		      "Decoding"
      SrcPort		      1
      DstBlock		      "Error Rate Calculation"
      DstPort		      2
    }
    Line {
      SrcBlock		      "From1"
      SrcPort		      1
      DstBlock		      "Error Rate Calculation"
      DstPort		      1
    }
    Line {
      SrcBlock		      "LMS\nAdaptive DS-SS Receiver"
      SrcPort		      2
      DstBlock		      "Terminator"
      DstPort		      1
    }
    Line {
      SrcBlock		      "Error Rate Calculation"
      SrcPort		      1
      DstBlock		      "Performance measure"
      DstPort		      1
    }
    Annotation {
      Position		      [88, 125]
      Text		      "MMSE Receiver for DS-SS\nPG = 15, M-PSK modulat"
"ion"
      FontName		      "Arial"
      FontSize		      11
    }
    Annotation {
      Position		      [639, 182]
      Text		      "Workspace variables:\nTb: 0.001\nM: M-ary PSK\n"
"PG: processing\ndb: channel SNR"
      FontName		      "Arial"
      FontSize		      14
    }
    Annotation {
      Position		      [389, 304]
      Text		      "The adaptive receiver causes one symbol delay"
      FontName		      "Arial"
      FontSize		      11
      FontWeight	      "bold"
    }
  }
}

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