Bistatic OFDM-based Joint Radar-Communication: Synchronization, Data Communication and Sensing

24 May 2023  ·  Lucas Giroto de Oliveira, David Brunner, Axel Diewald, Charlotte Muth, Laurent Schmalen, Thomas Zwick, Benjamin Nuss ·

This article introduces a bistatic joint radar-communication (RadCom) system based on orthogonal frequency-division multiplexing (OFDM). In this context, the adopted OFDM frame structure is described and system model encompassing time, frequency, and sampling synchronization mismatches between the transmitter and receiver of the bistatic system is outlined. Next, the signal processing approaches for synchronization and communication are discussed, and radar sensing processing approaches using either only pilots or a reconstructed OFDM frame based on the estimated receive communication data are presented. Finally, proof-of-concept measurement results are presented to validate the investigated system and a trade-off between frame size and the performance of the aforementioned processing steps is observed.

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