Deterministic Signal Processing Techniques for OFDM-Based Radar Sensing: An Overview

Abstract

In this manuscript, we analyze the most relevant classes of deterministic signal processing methods currently available for the detection and the estimation of multiple targets in a joint communication and sensing system employing orthogonal frequency division multiplexing. Our objective is offering a fair comparison of the available technical options in terms of required computational complexity and accuracy in both range and Doppler estimation. Our numerical results, obtained in various scenarios, evidence that distinct algorithms can achieve a substantially different accuracy-complexity trade-off.

Keywords

• Dual-function radar-communication
• frequency estimation
• harmonic retrieval
• joint communication and sensing
• maximum likelihood estimation
• orthogonal frequency division multiplexing