Simple Lane Estimation from Received Doppler Signal Strength in Traffic Monitoring Systems
Read ArticleDate of Conference
July 18-22, 2022
Published In
"Education, Research and Leadership in Post-pandemic Engineering: Resilient, Inclusive and Sustainable Actions"
Location of Conference
Boca Raton
Authors
Hernandez, Orlando
Abstract
In traffic monitoring systems, one estimates the lane where a vehicle is travelling using the Range Fast Fourier Transform (FFT) of received Frequency Modulated Continuous Wave (FMCW) radar signals. In practice, to determine the lane where a vehicle is traveling, it is not necessary to determine the range from the radar unit to the vehicle with the precision available from FMCW signal processing. This paper considers a simple technique to determine the vehicle lane from the doppler radar signal strength, which is simpler to process to determine speed. We show that this simpler signal processing can produce adequate results with much less complexity, and thus power consumption, which is important to minimize in remote battery powered traffic monitoring systems.