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How to sum the elements of a 4D matrix?

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Rita Baldi
Rita Baldi on 7 May 2021
Commented: Rita Baldi on 9 May 2021
Hi! And thank you to be here.
I have a communication system in which x=4 transmitters are transmitting a signal (vector of dimension t=1680) while they are moving (we have y=100 different points from which they transmit). At the receiver I have z=16 antennas which are receiving the signals coming from the 4 moving vehicles. I have collected all the signals transmitted in a 4D matrix (x,y,z,t) = (4,100,16,1680) and now I would to sum the contribution of all the signals arrived at each antenna, for all the antennas. At each antenna I have the contribute of 4 transmitters x 100 positions, and I want to sum them for each antenna in order to obtain a 2D matrix (z,t) = (16,1680). How can I do this? How to sum the contribution of just two dimensions of the 4D matrix?
Thanks a lot for your help!

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