Near-Field Localization and Sensing with Large-Aperture Arrays: From Signal Modeling to Processing

TL;DR

This paper explores the challenges and opportunities of near-field signal processing using large-aperture arrays, focusing on signal modeling and processing techniques for localization and sensing in the near-field regime.

Contribution

It provides a comprehensive analysis of near-field signal modeling and develops processing methods tailored for large-aperture arrays, addressing the limitations of far-field assumptions.

Findings

Enhanced spatial resolution with large arrays

New signal models for near-field scenarios

Potential improvements in localization accuracy

Abstract

The signal processing community is currently witnessing a growing interest in near-field signal processing, driven by the trend towards the use of large aperture arrays with high spatial resolution in the fields of communication, localization, sensing, imaging, etc. From the perspective of localization and sensing, this trend breaks the basic far-field assumptions that have dominated the array signal processing research in the past, presenting new challenges and promising opportunities.