Channel sounding, Double-directional sounder, Frequency division sounder, Frequency-orthogonal sounder, Multiple-input-multiple-output (MIMO) sounding, Relay channel sounding
dx.doi.org/10.1109/LAWP.2009.2021170
IEEE Antennas and Wireless Propagation Letters
Department of Systems and Computer Engineering

Dahman, G.S. (Ghassan S.), Bultitude, R.J.C. (Robert J. C.), & Hafez, R. (2009). The use of frequency-orthogonal pseudonoise (FOPN) sounding signals for identifying transmissions from different transmit antennas. IEEE Antennas and Wireless Propagation Letters, 8, 657–660. doi:10.1109/LAWP.2009.2021170