Radar Sensing with OTFS: Embracing ISI and ICI to Surpass the Ambiguity Barrier
Paper i proceeding, 2021

Orthogonal time frequency space (OTFS) is a promising alternative to orthogonal frequency division multiplexing (OFDM) in high-mobility beyond 5G communications. In this paper, we consider the problem of radar sensing with OTFS joint radar-communications waveform and derive a novel OTFS radar signal model by explicitly taking into account the inter- symbol interference (ISI) and inter-carrier interference (ICI) effects. On the basis of the new model, we show how ISI and ICI phenomena can be turned into an advantage to surpass the maximum unambiguous detection limits in range and velocity, arising in existing OFDM and OTFS radar systems. Moreover, we design a generalized likelihood ratio test based detector/estimator that can embrace ISI and ICI effects. Simulation results illustrate the potential of embracing ISI/ICI and demonstrate its superior detection and estimation performance over conventional base-lines.

OTFS

joint radar-communications

inter-symbol interference

OFDM

inter-carrier interference

Författare

Furkan Keskin

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

Henk Wymeersch

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

A. Alvarado

Technische Universiteit Eindhoven

2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021 - Proceedings

9473534

2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021
Virtual, Online, ,

Ämneskategorier

Sannolikhetsteori och statistik

Reglerteknik

Signalbehandling

DOI

10.1109/ICCWorkshops50388.2021.9473534

Mer information

Senast uppdaterat

2021-08-25