📄 ch3example15.mdl
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";"
MaskInitialization "str=dspblkmagfft2('init');dspblkmagfft2('up"
"date');"
MaskDisplay "disp(str,'texmode','on');"
MaskSelfModifiable on
MaskIconFrame on
MaskIconOpaque on
MaskIconRotate "none"
MaskIconUnits "autoscale"
MaskValueString "Magnitude squared|on|fftsize"
System {
Name "Magnitude\nFFT"
Location [481, 433, 925, 544]
Open off
ModelBrowserVisibility off
ModelBrowserWidth 200
ScreenColor "white"
PaperOrientation "landscape"
PaperPositionMode "auto"
PaperType "A4"
PaperUnits "centimeters"
ZoomFactor "100"
Block {
BlockType Inport
Name "In"
Position [15, 38, 45, 52]
}
Block {
BlockType Reference
Name "Check Signal\nAttributes"
Ports [1, 1]
Position [65, 23, 135, 67]
SourceBlock "dspsigattribs/Check Signal\nAttributes"
SourceType "Check Signal Attributes"
SigAttribCheckMethod "Matches attributes exactly"
Complexity "Ignore"
Frame "Sample-based"
DimsCheckMethod "Is..."
Dimensions "Row vector (2-D)"
DatatypeCheckMethod "Ignore"
DatatypeGeneral "Boolean"
DtypeFloatSpecific "Any floating-point"
DtypeFixedSpecific "Any fixed-point"
DtypeIntSpecific "Any integer"
SampleMode "Ignore"
}
Block {
BlockType Reference
Name "FFT"
Ports [1, 1]
Position [230, 28, 270, 62]
SourceBlock "dspxfrm3/FFT"
SourceType "FFT"
CompMethod "Table lookup"
TableOpt "Speed"
BitRevOrder off
}
Block {
BlockType Math
Name "Magnitude\nSquared"
Ports [1, 1]
Position [290, 30, 320, 60]
Operator "magnitude^2"
}
Block {
BlockType Reference
Name "Zero Pad"
Ports [1, 1]
Position [160, 27, 205, 63]
SourceBlock "dspsigops/Zero Pad"
SourceType "Zero Pad"
padSigAt "End"
zpadAlong "None"
padNumOutRowsSpecMethod "User-specified"
numOutRows "fftsize"
padNumOutColsSpecMethod "User-specified"
numOutCols "1"
trunc_flag "None"
}
Block {
BlockType Outport
Name "Out"
Position [355, 38, 385, 52]
}
Line {
SrcBlock "Check Signal\nAttributes"
SrcPort 1
DstBlock "Zero Pad"
DstPort 1
}
Line {
SrcBlock "Zero Pad"
SrcPort 1
DstBlock "FFT"
DstPort 1
}
Line {
SrcBlock "FFT"
SrcPort 1
DstBlock "Magnitude\nSquared"
DstPort 1
}
Line {
SrcBlock "In"
SrcPort 1
DstBlock "Check Signal\nAttributes"
DstPort 1
}
Line {
SrcBlock "Magnitude\nSquared"
SrcPort 1
DstBlock "Out"
DstPort 1
}
}
}
Block {
BlockType Reference
Name "Normalization"
Ports [1, 1]
Position [235, 107, 285, 143]
SourceBlock "dspspect3/Short-Time FFT/Normalization"
SourceType "SubSystem"
ShowPortLabels on
Permissions "ReadWrite"
TreatAsAtomicUnit off
RTWSystemCode "Auto"
RTWFcnNameOpts "Auto"
RTWFileNameOpts "Auto"
SimViewingDevice off
DataTypeOverride "UseLocalSettings"
MinMaxOverflowLogging "UseLocalSettings"
}
Block {
BlockType Product
Name "Product2"
Ports [2, 1]
Position [375, 39, 400, 66]
ShowName off
Inputs "**"
}
Block {
BlockType Reference
Name "Window"
Ports [1, 2]
Position [65, 32, 145, 88]
SourceBlock "dspsigops/Window\nFunction"
SourceType "Window Function"
winmode "Generate and apply window"
wintype "Hann"
N "64"
Rs "Rs"
beta "beta"
winsamp "Periodic"
UserWindow "hamming"
OptParams off
UserParams "{1.0}"
datatype "Double"
}
Block {
BlockType Outport
Name "Out"
Position [420, 48, 450, 62]
InitialOutput "0"
}
Line {
SrcBlock "Window"
SrcPort 2
Points [20, 0; 0, 50]
DstBlock "Normalization"
DstPort 1
}
Line {
SrcBlock "Normalization"
SrcPort 1
Points [70, 0]
DstBlock "Product2"
DstPort 2
}
Line {
SrcBlock "Digital Filter"
SrcPort 1
DstBlock "Product2"
DstPort 1
}
Line {
SrcBlock "Product2"
SrcPort 1
DstBlock "Out"
DstPort 1
}
Line {
SrcBlock "Window"
SrcPort 1
DstBlock "Magnitude\nFFT"
DstPort 1
}
Line {
SrcBlock "Magnitude\nFFT"
SrcPort 1
DstBlock "Digital Filter"
DstPort 1
}
Line {
SrcBlock "In"
SrcPort 1
DstBlock "Window"
DstPort 1
}
}
}
Block {
BlockType Reference
Name "Spectrum\nScope"
Ports [1]
Position [490, 200, 525, 250]
FontSize 10
SourceBlock "dspsnks4/Spectrum\nScope"
SourceType "Spectrum Scope"
ScopeProperties on
Domain "Frequency"
HorizSpan "1"
UseBuffer off
BufferSize "128"
Overlap "64"
inpFftLenInherit off
FFTlength "128"
numAvg "2"
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]"
InheritXIncr on
XIncr "1.0"
XLabel "Samples"
YUnits "dB"
YMin "-165.177421961562"
YMax "25.374802604835"
YLabel "Magnitude, dB"
LineProperties off
}
Block {
BlockType Reference
Name "Vector\nScope"
Ports [1]
Position [470, 95, 505, 145]
FontSize 10
SourceBlock "dspsnks4/Vector\nScope"
SourceType "Vector Scope"
ScopeProperties off
Domain "Frequency"
HorizSpan "1"
DisplayProperties off
AxisGrid on
Memory off
FrameNumber on
AxisLegend off
AxisZoom off
OpenScopeAtSimStart on
OpenScopeImmediately off
FigPos "get(0,'defaultfigureposition')"
AxisProperties on
XUnits "Hertz"
XRange "[0...Fs]"
InheritXIncr on
XIncr "1"
XLabel "Time"
YUnits "dB"
YMin "-91.7706059887706"
YMax "41.9940621522331"
YLabel "Amplitude"
LineProperties off
}
Block {
BlockType Reference
Name "Vector\nScope1"
Ports [1]
Position [550, 30, 585, 80]
FontSize 10
SourceBlock "dspsnks4/Vector\nScope"
SourceType "Vector Scope"
ScopeProperties off
Domain "Frequency"
HorizSpan "1"
DisplayProperties off
AxisGrid on
Memory off
FrameNumber on
AxisLegend off
AxisZoom off
OpenScopeAtSimStart on
OpenScopeImmediately off
FigPos "get(0,'defaultfigureposition')"
AxisProperties on
XUnits "Hertz"
XRange "[0...Fs]"
InheritXIncr on
XIncr "1"
XLabel "Time"
YUnits "dB"
YMin "-87.6360065553052"
YMax "40.0363659429979"
YLabel "Amplitude"
LineProperties off
}
Block {
BlockType Reference
Name "Vector\nScope2"
Ports [1]
Position [410, 240, 445, 290]
FontSize 10
SourceBlock "dspsnks4/Vector\nScope"
SourceType "Vector Scope"
ScopeProperties off
Domain "Frequency"
HorizSpan "1"
DisplayProperties off
AxisGrid on
Memory off
FrameNumber on
AxisLegend off
AxisZoom off
OpenScopeAtSimStart on
OpenScopeImmediately off
FigPos "get(0,'defaultfigureposition')"
AxisProperties on
XUnits "Hertz"
XRange "[0...Fs]"
InheritXIncr on
XIncr "1"
XLabel "Time"
YUnits "dB"
YMin "-165.177421988534"
YMax "25.3748026061803"
YLabel "Amplitude"
LineProperties off
}
Block {
BlockType Reference
Name "Window\nFunction"
Ports [1, 1]
Position [195, 94, 250, 146]
FontSize 10
SourceBlock "dspsigops/Window\nFunction"
SourceType "Window Function"
winmode "Apply window to input"
wintype "Kaiser"
N "64"
Rs "50"
beta "10"
winsamp "Periodic"
UserWindow "hamming"
OptParams off
UserParams "{1.0}"
datatype "Double"
}
Block {
BlockType ZeroOrderHold
Name "Zero-Order\nHold"
Position [40, 101, 75, 139]
SampleTime "1/200"
}
Line {
SrcBlock "Clock"
SrcPort 1
DstBlock "Fcn"
DstPort 1
}
Line {
SrcBlock "Window\nFunction"
SrcPort 1
Points [10, 0]
Branch {
DstBlock "Magnitude\nFFT"
DstPort 1
}
Branch {
Points [0, -75]
DstBlock "FFT"
DstPort 1
}
Branch {
Points [0, 60]
DstBlock "Buffer1"
DstPort 1
}
}
Line {
SrcBlock "Zero-Order\nHold"
SrcPort 1
DstBlock "Buffer"
DstPort 1
}
Line {
SrcBlock "Buffer1"
SrcPort 1
DstBlock "Scope"
DstPort 1
}
Line {
SrcBlock "Magnitude\nFFT"
SrcPort 1
DstBlock "Vector\nScope"
DstPort 1
}
Line {
SrcBlock "FFT"
SrcPort 1
DstBlock "Abs"
DstPort 1
}
Line {
SrcBlock "Abs"
SrcPort 1
Points [0, 0; 10, 0]
Branch {
DstBlock "Product"
DstPort 1
}
Branch {
Points [0, 15]
DstBlock "Product"
DstPort 2
}
}
Line {
SrcBlock "Product"
SrcPort 1
DstBlock "Vector\nScope1"
DstPort 1
}
Line {
SrcBlock "Fcn"
SrcPort 1
Points [10, 0; 0, 40; -230, 0; 0, 50]
DstBlock "Zero-Order\nHold"
DstPort 1
}
Line {
SrcBlock "Buffer"
SrcPort 1
Points [20, 0]
Branch {
DstBlock "Window\nFunction"
DstPort 1
}
Branch {
Points [0, 105; 75, 0]
Branch {
DstBlock "Spectrum\nScope"
DstPort 1
}
Branch {
Points [0, 40]
DstBlock "Short-Time FFT"
DstPort 1
}
}
}
Line {
SrcBlock "Short-Time FFT"
SrcPort 1
DstBlock "Vector\nScope2"
DstPort 1
}
Annotation {
Name "窗函数模块以及\n各种频谱计算模块的应用测试模型"
"\n文件名：ch3example15.mdl"
Position [106, 269]
DropShadow on
FontName "Arial"
FontSize 12
}
}
}
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