coupling_calib only include the real component

[kangk906]

Hello, I recently downloaded the dataset and noticed that in the 'coupling_calib.txt' file, all values are real numbers. However, when reviewing the associated calibration tool documentation, it specifies that coupling calibration involves a mean operation, implying that the values should include both the real and imaginary components. I'm curious to understand why the values in the 'coupling_calib.txt' file only include the real component and not the imaginary component. Could you provide some clarification on this?