# Enhanced Tracer Particle Detection in Dynamic Bulk Systems Based on Polarimetric Radar Signature Correlation

## TL;DR

This paper introduces a method using polarimetric radar to detect tracer particles in bulk materials, improving monitoring in industrial processes.

## Contribution

A novel resonant cross-polarizing structure is proposed to isolate tracer particle signals from bulk media clutter.

## Key findings

- The method effectively isolates tracer particle signatures from bulk reflections.
- Comprehensive measurements confirm the feasibility and efficacy of the approach.
- The setup is applicable for dynamic monitoring in industrial particulate systems.

## Abstract

This contribution focuses on the detection of tracer particles within non-homogeneous bulk media, aiming to enhance insights into particulate systems. Polarimetric radar measurements are employed, utilizing cross-polarizing channels in order to mitigate interference from bulk media reflections. To distinguish the tracer particle in the measurements, a resonant cross-polarizing structure is constructed, facilitating the isolation of frequency signatures from the surrounding bulk clutter. In addition to characterizing the bulk and tracer components, this study provides a detailed presentation and discussion of the measurement setup, along with the employed signal processing methods. The effectiveness of the proposed methods is demonstrated through comprehensive measurements, where a tracer particle is systematically positioned at various locations. The results affirm the feasibility and efficacy of the approach, highlighting its applicability for enhanced dynamic monitoring in particulate systems within industrial processes.