Advancements in Millimeter-Wave Radar Technologies for Automotive Systems: A Signal Processing Perspective

Boxun Yan; Ian P. Roberts

doi:10.3390/electronics14071436

journal article Open Access Apr 02, 2025

Advancements in Millimeter-Wave Radar Technologies for Automotive Systems: A Signal Processing Perspective

Boxun Yan

Ian P. Roberts

Electronics Vol. 14 No. 7 pp. 1436 · MDPI AG

View at Publisher Save 10.3390/electronics14071436

Abstract

This review paper provides a comprehensive examination of millimeter-wave radar technologies in automotive systems, reviewing their advancements through signal processing innovations. The evolution of radar systems, from conventional platforms to mmWave technologies, has significantly enhanced capabilities such as high-resolution imaging, real-time tracking, and multi-object detection. Signal processing advancements, including constant false alarm rate detection, multiple-input–multiple-output systems, and machine learning-based techniques, are explored for their roles in improving radar performance under dynamic and challenging environments. The integration of mmWave radar with complementary sensing technologies such as LiDAR and cameras facilitates robust environmental perception essential for advanced driver-assistance systems and autonomous vehicles. This review also calls attention to key challenges, including environmental interference, material penetration, and sensor fusion, while addressing innovative solutions such as adaptive signal processing and sensor integration. Emerging applications of joint communication–radar systems further presents the potential of mmWave radar in autonomous driving and vehicle-to-everything communications. By synthesizing recent developments and identifying future directions, this review stresses the critical role of mmWave radar in advancing vehicular safety, efficiency, and autonomy.

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Details

Published: Apr 02, 2025
Vol/Issue: 14(7)
Pages: 1436
License: View

Authors

B

Boxun Yan

Department of Electrical and Computer Engineering, University of California, Los Angeles, CA 90095, USA

I

Ian P. Roberts

Department of Electrical and Computer Engineering, University of California, Los Angeles, CA 90095, USA

Cite This Article

Boxun Yan, Ian P. Roberts (2025). Advancements in Millimeter-Wave Radar Technologies for Automotive Systems: A Signal Processing Perspective. Electronics, 14(7), 1436. https://doi.org/10.3390/electronics14071436

Advancements in Millimeter-Wave Radar Technologies for Automotive Systems: A Signal Processing Perspective

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