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Enhancing resolution of an oversampled 8bit signal
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Ettos
Dec 31, 2011, 8:05:48 AM12/31/11
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Hi,
I have an oversampled 1kHz sine signal with a sampling frequency of
62.5MHz and vertical resolution of 8bit.
I take FFT in matlab to determine the signal's phase.
What I need is phase accuracy. Do you think it is better to enhance
vertical resolution to a greater number of bits? How to do this? Moving
average filter? Or it is better to take the FFT of the signal as it is?
Thank you so much,
Matteo.
I have an oversampled 1kHz sine signal with a sampling frequency of
62.5MHz and vertical resolution of 8bit.
I take FFT in matlab to determine the signal's phase.
What I need is phase accuracy. Do you think it is better to enhance
vertical resolution to a greater number of bits? How to do this? Moving
average filter? Or it is better to take the FFT of the signal as it is?
Thank you so much,
Matteo.
Ettos
Jan 4, 2012, 1:34:28 PM1/4/12
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M.
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