Sensing Fast and Distant Targets in Fractional Overspread Channels with Zak-OTFS and Modular Arithmetic

Andrea Novero, Mudasir Ahmad Sheikh, Danish Nisar +3

Delay-Doppler (DD) modulations, such as Zak-transform-based orthogonal time frequency space (Zak-OTFS) modulation, represent the channel as a sparse set of delay and Doppler shifts…