About the csi phase

[Worange12]

Can I get the phase difference buy just one antenna on ESP32-S3?
And the csi data of https://github.com/espressif
/esp-csi is that the singular column is the imaginary part, and the even column is the real part, how about this project?

[StevenMHernandez]

This code shows how Raw CSI is generated as well as how to calculate amplitude and phase based on the order of real and imaginary components. https://github.com/StevenMHernandez/ESP32-CSI-Tool/blob/master/_components/csi_component.h#L61-L78