I have a question about Spectrum Analyzer!!!

Hello.

When i use Spectrum Analyzer of DSP system Toolbox, i saw 'spectrum cannot be displayed for continuous or infinite sample times.' on the Spectrum Analyzr screen.

I want to know when does it appear ?

[Mathieu NOE]

hello

you have to first sample your signal with a fixed sampling frequency (insert sample and hold block before spectrum)

Answer 1

[nada khatib]

You have to use "signal specfication" block between the spectrum analyzer and the signal you want to see its spectrum. Then set the sample time inside the block "signal specification" to specific value (such as 1/320000)