Doppler analysis with raytracing

I am a student and for my thesis i need to study a multipath channel in an urban enviroment, setting some transmitter and one target in motion.

I am using the comm.RayTracingChannel object to set up the receiver velocity, but i need to study a case where the transmitter move too.

There is a way to do this on Matlab? Thank you all very much

[Manikanta Aditya]

One possible workaround is to consider the relative motion between the transmitter and the receiver. In other words, if you have a moving transmitter and a moving receiver, you can transform the problem into one where the transmitter is stationary and the receiver is moving with the relative velocity of the original transmitter and receiver.

[nicolas pellanda]

Thank you for the answer, but there isn't a way to do it with the channel created by comm.RayTracingChannel rigth?

Cause it give in output the sample of the computed channel impulse resonse, but it is possible to set only the receiver velocity and not the transmitter velocity. For my anlysis i need those sample, but i think i cant do it in this way.

[Manikanta Aditya]

You’re correct that the comm.RayTracingChannel object in MATLAB only allows you to set the velocity of the receiver, not the transmitter. This is because the object is designed to model the channel response based on the receiver’s perspective.

If both the transmitter and receiver are moving at the same speed in the same direction, it’s equivalent to them both being stationary. If they’re moving at different speeds in the same direction, it’s equivalent to one of them being stationary and the other moving at the speed difference. The same concept applies if they’re moving in different directions.

So, even though comm.RayTracingChannel doesn’t allow you to directly set the transmitter velocity, you can still model a moving transmitter by adjusting the receiver velocity to be the relative velocity between the transmitter and receiver.

[nicolas pellanda]

Thank you, i Will procede with this option.