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g2g2
g2g2
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I need to time align two complex signals. IThe two signals obtained were at different RF frequency before digitisation. So,I have two complex signals(IQ) and I need to do delay estimation and apply correction on one of the signal.

Cross-correlating the absolute values of two signals and finding the peak gives one answer while cross-correlating the complex values and then finding the peak from the absolute value of the obtained (complex)correlation gives another peak?

Which method shall I choose? what is the best way forward? Any insight into it?

I need to time align two complex signals. I have two complex signals(IQ) and I need to do delay estimation and apply correction on one of the signal.

Cross-correlating the absolute values of two signals and finding the peak gives one answer while cross-correlating the complex values and then finding the peak from the absolute value of the obtained (complex)correlation gives another peak?

Which method shall I choose? what is the best way forward? Any insight into it?

I need to time align two complex signals. The two signals obtained were at different RF frequency before digitisation. So,I have two complex signals(IQ) and I need to do delay estimation and apply correction on one of the signal.

Cross-correlating the absolute values of two signals and finding the peak gives one answer while cross-correlating the complex values and then finding the peak from the absolute value of the obtained (complex)correlation gives another peak?

Which method shall I choose? what is the best way forward? Any insight into it?

Source Link
g2g2
g2g2
  • 11
  • 3

Time delay estimation between two complex signals(IQ)

I need to time align two complex signals. I have two complex signals(IQ) and I need to do delay estimation and apply correction on one of the signal.

Cross-correlating the absolute values of two signals and finding the peak gives one answer while cross-correlating the complex values and then finding the peak from the absolute value of the obtained (complex)correlation gives another peak?

Which method shall I choose? what is the best way forward? Any insight into it?