On 18/09/2023 10:09, h57jaf...@gmail.com wrote:

Thank you, Marcus,

Yes, I am trying with correlation peak.

Yes, for radar application the TX and RX IQ samples with same size saved to two files. I need to calculate and remove that delay.

Does this group delay is fixed or changing during the TX/RX?


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I should add that that *analog* contributions to delay WILL drift a little bit with changes in temperature, this includes things like   circuit-board line lengths and the group-delay properties of analog filters.


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