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Ahmad Sugiana
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering

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Journal : eProceedings of Engineering

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FMCW Multipulse Radar System For Improved Vehicle Speed Detection Capabilities Sania Uswah Nafisah; Ahmad Sugiana; Aloysius Adya Pramudita
eProceedings of Engineering Vol. 13 No. 1 (2026): Februari 2026
Publisher : eProceedings of Engineering

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Abstract

Accidents on toll roads are often caused by vehicles exceeding the legal speed limit. To mitigate this, a reliable speed detection system is required—one that offers a wide detection range, high accuracy, and the flexibility to be integrated into a vehicle’s body. One promising solution is the use of Doppler radar based on the Frequency-Modulated Continuous-Wave (FMCW) principle. However, traditional FMCW radars face significant challenges in detecting low-speed motion due to the extremely small Doppler frequency shifts involved. This paper proposes an enhanced vehicle speed detection method using a multipulse FMCW radar system. The multipulse technique divides a single signal period into multiple short pulses, increasing spectral sampling density and improving Doppler resolution. MATLAB based simulation results demonstrate that the system can accurately detect speeds as low as 4 km/h by producing sharper and more distinguishable Doppler spectral peaks. The proposed approach shows strong potential for real-time traffic monitoring and intelligent transportation systems.
Co-Authors Aloysius Adya Pramudita Sania Uswah Nafisah