Unmanned aerial vehicle (UAV) targets are characterized by slow speed, low flying altitude, and small radar cross section, which provides them with great stealth properties. In the urban low-altitude ...

Abstract: This paper presents a new OFDM based modulation scheme for communication in doubly dispersive channels. We call this Delay-Doppler OFDM (DD-OFDM). Our waveform has the same sparse-channel ...