nco_test_mdl.mdl

这里的DDS(直接数字合成)是我在MATLAB中用Simulink基本模块搭建起来的模型,仿真DDS信号的产生,并有一个M文件实现与模型同等的功能,MATLAB爱好者一定不要错过

	  Name			  "s(5)"
	  Position		  [6285, 185, 6315, 215]
	  Gain			  "0.23002144473101108"
	}
	Block {
	  BlockType		  Gain
	  Name			  "s(6)"
	  Position		  [7785, 185, 7815, 215]
	  Gain			  "0.2157900004926124"
	}
	Block {
	  BlockType		  Gain
	  Name			  "s(7)"
	  Position		  [9285, 185, 9315, 215]
	  Gain			  "0.20523482664696693"
	}
	Block {
	  BlockType		  Gain
	  Name			  "s(8)"
	  Position		  [10785, 185, 10815, 215]
	  Gain			  "0.19776332478595182"
	}
	Block {
	  BlockType		  Gain
	  Name			  "s(9)"
	  Position		  [12285, 185, 12315, 215]
	  Gain			  "0.19298134454552432"
	}
	Block {
	  BlockType		  Outport
	  Name			  "Output"
	  Position		  [14985, 192, 15015, 208]
	  IconDisplay		  "Port number"
	  BusOutputAsStruct	  off
	}
	Line {
	  SrcBlock		  "Input"
	  SrcPort		  1
	  DstBlock		  "s(1)"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "s(1)"
	  SrcPort		  1
	  DstBlock		  "SumA21"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "SumA21"
	  SrcPort		  1
	  DstBlock		  "SumA31"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "SumA31"
	  SrcPort		  1
	  Points		  [0, 0]
	  Branch {
	    DstBlock		    "SumB21"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [205, 0]
	    DstBlock		    "Delay11"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "SumB21"
	  SrcPort		  1
	  DstBlock		  "SumB31"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "SumB31"
	  SrcPort		  1
	  DstBlock		  "SectOut1"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "a(2)(1)"
	  SrcPort		  1
	  Points		  [-250, 0]
	  DstBlock		  "SumA21"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "Delay11"
	  SrcPort		  1
	  Points		  [0, 0]
	  Branch {
	    Points		    [0, 20]
	    DstBlock		    "a(2)(1)"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [0, 20]
	    DstBlock		    "b(2)(1)"
	    DstPort		    1
	  }
	  Branch {
	    DstBlock		    "Delay21"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "b(2)(1)"
	  SrcPort		  1
	  Points		  [100, 0]
	  DstBlock		  "SumB21"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "a(3)(1)"
	  SrcPort		  1
	  Points		  [-70, 0]
	  DstBlock		  "SumA31"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "Delay21"
	  SrcPort		  1
	  Points		  [0, 0]
	  Branch {
	    Points		    [0, 20]
	    DstBlock		    "a(3)(1)"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [0, 10; 375, 0]
	    DstBlock		    "SumB31"
	    DstPort		    2
	  }
	}
	Line {
	  SrcBlock		  "SectIn2"
	  SrcPort		  1
	  DstBlock		  "s(2)"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "s(2)"
	  SrcPort		  1
	  DstBlock		  "SumA22"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "SumA22"
	  SrcPort		  1
	  DstBlock		  "SumA32"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "SumA32"
	  SrcPort		  1
	  Points		  [0, 0]
	  Branch {
	    DstBlock		    "SumB22"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [205, 0]
	    DstBlock		    "Delay12"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "SumB22"
	  SrcPort		  1
	  DstBlock		  "SumB32"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "SumB32"
	  SrcPort		  1
	  DstBlock		  "SectOut2"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "a(2)(2)"
	  SrcPort		  1
	  Points		  [-250, 0]
	  DstBlock		  "SumA22"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "Delay12"
	  SrcPort		  1
	  Points		  [0, 0]
	  Branch {
	    Points		    [0, 20]
	    DstBlock		    "a(2)(2)"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [0, 20]
	    DstBlock		    "b(2)(2)"
	    DstPort		    1
	  }
	  Branch {
	    DstBlock		    "Delay22"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "b(2)(2)"
	  SrcPort		  1
	  Points		  [100, 0]
	  DstBlock		  "SumB22"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "a(3)(2)"
	  SrcPort		  1
	  Points		  [-70, 0]
	  DstBlock		  "SumA32"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "Delay22"
	  SrcPort		  1
	  Points		  [0, 0]
	  Branch {
	    Points		    [0, 20]
	    DstBlock		    "a(3)(2)"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [0, 10; 375, 0]
	    DstBlock		    "SumB32"
	    DstPort		    2
	  }
	}
	Line {
	  SrcBlock		  "SectIn3"
	  SrcPort		  1
	  DstBlock		  "s(3)"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "s(3)"
	  SrcPort		  1
	  DstBlock		  "SumA23"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "SumA23"
	  SrcPort		  1
	  DstBlock		  "SumA33"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "SumA33"
	  SrcPort		  1
	  Points		  [0, 0]
	  Branch {
	    DstBlock		    "SumB23"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [205, 0]
	    DstBlock		    "Delay13"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "SumB23"
	  SrcPort		  1
	  DstBlock		  "SumB33"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "SumB33"
	  SrcPort		  1
	  DstBlock		  "SectOut3"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "a(2)(3)"
	  SrcPort		  1
	  Points		  [-250, 0]
	  DstBlock		  "SumA23"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "Delay13"
	  SrcPort		  1
	  Points		  [0, 0]
	  Branch {
	    Points		    [0, 20]
	    DstBlock		    "a(2)(3)"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [0, 20]
	    DstBlock		    "b(2)(3)"
	    DstPort		    1
	  }
	  Branch {
	    DstBlock		    "Delay23"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "b(2)(3)"
	  SrcPort		  1
	  Points		  [100, 0]
	  DstBlock		  "SumB23"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "a(3)(3)"
	  SrcPort		  1
	  Points		  [-70, 0]
	  DstBlock		  "SumA33"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "Delay23"
	  SrcPort		  1
	  Points		  [0, 0]
	  Branch {
	    Points		    [0, 20]
	    DstBlock		    "a(3)(3)"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [0, 10; 375, 0]
	    DstBlock		    "SumB33"
	    DstPort		    2
	  }
	}
	Line {
	  SrcBlock		  "SectIn4"
	  SrcPort		  1
	  DstBlock		  "s(4)"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "s(4)"
	  SrcPort		  1
	  DstBlock		  "SumA24"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "SumA24"
	  SrcPort		  1
	  DstBlock		  "SumA34"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "SumA34"
	  SrcPort		  1
	  Points		  [0, 0]
	  Branch {
	    DstBlock		    "SumB24"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [205, 0]
	    DstBlock		    "Delay14"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "SumB24"
	  SrcPort		  1
	  DstBlock		  "SumB34"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "SumB34"
	  SrcPort		  1
	  DstBlock		  "SectOut4"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "a(2)(4)"
	  SrcPort		  1
	  Points		  [-250, 0]
	  DstBlock		  "SumA24"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "Delay14"
	  SrcPort		  1
	  Points		  [0, 0]
	  Branch {
	    Points		    [0, 20]
	    DstBlock		    "a(2)(4)"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [0, 20]
	    DstBlock		    "b(2)(4)"
	    DstPort		    1
	  }
	  Branch {
	    DstBlock		    "Delay24"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "b(2)(4)"
	  SrcPort		  1
	  Points		  [100, 0]
	  DstBlock		  "SumB24"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "a(3)(4)"
	  SrcPort		  1
	  Points		  [-70, 0]
	  DstBlock		  "SumA34"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "Delay24"
	  SrcPort		  1
	  Points		  [0, 0]
	  Branch {
	    Points		    [0, 20]
	    DstBlock		    "a(3)(4)"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [0, 10; 375, 0]
	    DstBlock		    "SumB34"
	    DstPort		    2
	  }
	}
	Line {
	  SrcBlock		  "SectIn5"
	  SrcPort		  1
	  DstBlock		  "s(5)"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "s(5)"
	  SrcPort		  1
	  DstBlock		  "SumA25"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "SumA25"
	  SrcPort		  1
	  DstBlock		  "SumA35"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "SumA35"
	  SrcPort		  1
	  Points		  [0, 0]
	  Branch {
	    DstBlock		    "SumB25"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [205, 0]
	    DstBlock		    "Delay15"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "SumB25"
	  SrcPort		  1
	  DstBlock		  "SumB35"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "SumB35"
	  SrcPort		  1
	  DstBlock		  "SectOut5"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "a(2)(5)"
	  SrcPort		  1
	  Points		  [-250, 0]
	  DstBlock		  "SumA25"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "Delay15"
	  SrcPort		  1
	  Points		  [0, 0]
	  Branch {
	    Points		    [0, 20]
	    DstBlock		    "a(2)(5)"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [0, 20]
	    DstBlock		    "b(2)(5)"
	    DstPort		    1
	  }
	  Branch {
	    DstBlock		    "Delay25"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "b(2)(5)"
	  SrcPort		  1
	  Points		  [100, 0]
	  DstBlock		  "SumB25"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "a(3)(5)"
	  SrcPort		  1
	  Points		  [-70, 0]
	  DstBlock		  "SumA35"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "Delay25"
	  SrcPort		  1
	  Points		  [0, 0]
	  Branch {
	    Points		    [0, 20]
	    DstBlock		    "a(3)(5)"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [0, 10; 375, 0]
	    DstBlock		    "SumB35"
	    DstPort		    2
	  }
	}
	Line {
	  SrcBlock		  "SectIn6"
	  SrcPort		  1
	  DstBlock		  "s(6)"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "s(6)"
	  SrcPort		  1
	  DstBlock		  "SumA26"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "SumA26"
	  SrcPort		  1
	  DstBlock		  "SumA36"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "SumA36"
	  SrcPort		  1
	  Points		  [0, 0]
	  Branch {
	    DstBlock		    "SumB26"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [205, 0]
	    DstBlock		    "Delay16"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "SumB26"
	  SrcPort		  1
	  DstBlock		  "SumB36"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "SumB36"
	  SrcPort		  1
	  DstBlock		  "SectOut6"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "a(2)(6)"
	  SrcPort		  1
	  Points		  [-250, 0]
	  DstBlock		  "SumA26"
	  DstPort		  2
	}