Advanced Stationary Point Concentration Technique for Leakage Mitigation and Small Drone Detection with FMCW Radar

TL;DR

This paper introduces an advanced stationary point concentration (A-SPC) technique for FMCW radar to improve small drone detection by mitigating leakage and enhancing signal quality, building on previous SPC methods.

Contribution

The paper proposes an improved A-SPC technique that overcomes limitations of the original SPC method, enhancing detection accuracy and robustness in small drone detection with FMCW radar.

Findings

A-SPC significantly reduces leakage effects in FMCW radar.

Experimental results demonstrate improved detection accuracy and robustness.

A-SPC outperforms previous SPC methods in various scenarios.

Abstract

As the threats of small drones have grown, developing radars to detect the small drones has become an important issue. In earlier studies, we proposed the stationary point concentration (SPC) technique for the small drone detection with frequency-modulated continuous-wave (FMCW) radar. The SPC technique is a new approach to mitigate the leakage that is an inherent problem in the FMCW radar. The SPC technique improves the signal-to-noise ratio of the small drones by reducing the noise floor and provides accurate distance and velocity information of the small drones. However, the SPC technique has shortcomings in realizing it. In this paper, we present the drawbacks of the SPC technique clearly and propose an advanced SPC (A-SPC) technique. The A-SPC technique can overcome the drawbacks of the SPC technique while taking all the good effects of the SPC technique. The experimental results verify the proposed A-SPC technique and show its robustness and usefulness.