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added the "signal-identification" and the symbol-timing tags; the question seemed "undertagged"
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edit approved Feb 15, 2016 at 10:10
Marcus Müller
edit approved Feb 15, 2016 at 10:10
Marcus Müller
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jhegedus
jhegedus
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Is it possible to estimate the symbol rate of a signal whose modulation is not know exactly but it can only be guessed that it is probably some kind of QAM (probably 64 or 256).

What is the best way to get an estimate for the symbol rate of a signal of unknown modulation?

For example by feeding the signal through some non-linearity and then looking itat it's spectra, should that reveal something about the symbol rate ?

More precisely, I have a 10 MHz wide signal recorded with an SDR at 2.45GHz. It is emitted by a wireless camera.

Is it possible to estimate the symbol rate of a signal whose modulation is not know exactly but it can only be guessed that it is probably some kind of QAM (probably 64 or 256).

What is the best way to get an estimate for the symbol rate of a signal of unknown modulation?

For example by feeding the signal through some non-linearity and then looking it it's spectra, should that reveal something about the symbol rate ?

More precisely, I have a 10 MHz wide signal recorded with an SDR at 2.45GHz. It is emitted by a wireless camera.

Is it possible to estimate the symbol rate of a signal whose modulation is not know exactly but it can only be guessed that it is probably some kind of QAM (probably 64 or 256).

What is the best way to get an estimate for the symbol rate of a signal of unknown modulation?

For example by feeding the signal through some non-linearity and then looking at it's spectra, should that reveal something about the symbol rate ?

More precisely, I have a 10 MHz wide signal recorded with an SDR at 2.45GHz. It is emitted by a wireless camera.

Source Link
jhegedus
jhegedus
  • 247
  • 3
  • 15

How to measure/estimate symbol rate of a signal with unknown ( but probably QAM ) modulation?

Is it possible to estimate the symbol rate of a signal whose modulation is not know exactly but it can only be guessed that it is probably some kind of QAM (probably 64 or 256).

What is the best way to get an estimate for the symbol rate of a signal of unknown modulation?

For example by feeding the signal through some non-linearity and then looking it it's spectra, should that reveal something about the symbol rate ?

More precisely, I have a 10 MHz wide signal recorded with an SDR at 2.45GHz. It is emitted by a wireless camera.