Simultaneous radar and communication emissions from a common aperture, Part II: Experimentation

In the companion paper the Far-Field Radiated Emission Design (FFRED) formulation was theoretically derived for the application of simultaneous generation of multi-function radar and communication emissions in the same spectrum from the same antenna array via a physically realizable MIMO transmit arrangement. Here the practical consequences of such a transmission scheme are considered by way of experimental measurements. The multi-function waveforms were implemented on an Air Force Research Laboratory (AFRL) software-defined radar testbed comprised of four independent transmit channels. Experimental results from a compact range include beampattern measurements, radar waveform validation, and bit error rate analysis of the communication beam.