How are angles defined when using channels generated by Sionna

[BAIGE666]

May I ask if I use the channel generated by Sionna for sensing, such as FFT, and the angle I measure is the relative angle between the user and the base station or other angles?

[jhoydis]

Hi @BAIGE666,

You would need to provide more context for me to answer your question.

[BAIGE666]

I have checked the underlying code of Sionna and found that the calculation of paths does not use the orientation parameter at all, so the angle information contained in the channel generated by ray tracing is not related to the rotation information of the antenna, right? Is this really reasonable?

[jhoydis]

For the computation of the geometric propagation paths, the orientation of a transmitter/receiver does not matter.
It is however used for the field computation when the antenna pattern is applied.

[BAIGE666]

Does the channel matrix generated by path.cfr have no relation to the rotation of the antenna?

[jhoydis]

Of course it has.