How to use a Spectrum scope in Matlab Simulink

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!ntel
!ntel 2013-10-15
编辑： Andreas Goser 2013-10-15
Hello I am learning the matlab and I want to plot the frequency spectrum of a simple sine wave signal in simulink. I am using the spectrum scope but i could not see any graph turning up what is the problem?? In what way should I use to get it worked...
Can any one please help
Thanks in advance

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回答（1 个）

Andreas Goser
Andreas Goser 2013-10-15
编辑：Andreas Goser 2013-10-15
My suggestion is you open an example model (AKA demo) and see how the block works and what may be different in what you tried. Open
lmsadtde
This has a "Spectrum Analyzer" block (so it is called in my R2013a installation. You may want to switch the follwing settings in order to compare the demo and your model:
Menu Display -> Signals & Ports -> Port Data Types
Menu Display -> Signals & Ports -> Signal Dimensions

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