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HELP---- could anyone tell me what's the data in specgram?

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Alvinly

Alvinly

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S=specgram(signal);

what's inside the matix S?
 
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And what part of the help file didn't you understand?

TTFN

FAQ731-376
 
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I don't understant the structure in the matric S.

in the matric S i got 20 columns, why the first element of the columns is a real number, and the other is the complex number? and is one column for one segment?
 
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