Improved Beamforming Encoding for Joint Radar and Communication

Abstract

Integrated Sensing and Communication Systems (ISAC) that are capable of functioning both as radars and communication systems have a tremendous potential to provide significant performance gains and cost savings and facilitate the sharing of the same energy, spectral, and hardware resources. Managing interference in frequency and spatial domains is a crucial task in ISAC. We consider a radar-centric scenario where a radar system is able to do beamforming and transmit communications data on the side. We propose an improved method allowing good control of the transmit beampattern power resulting in lower communication error level. Furthermore, we also propose straightforward method for phase coding of information in radar signals.