In-Vehicle Monitoring by Radar: A Review

Abstract

The proliferation of vehicles and subsequent increase in traffic accidents has led to a heightened focus on driving safety. As a result, various researchers have been examining ways to enhance driving safety in daily life by implementing smart car technology. In-vehicle sensing utilizing radar technology has emerged as a leading method for monitoring the driver's health, emotions, and attention, owing to its numerous advantages over traditional sensors, including the ability to detect subjects through non-metallic surfaces and the inherent privacy-preserving mechanisms. In recent years, invehicle sensing through radar has undergone significant advancements. This paper aims to provide a comprehensive survey of the applications, system level design, and signal processing of in-vehicle sensing through radar. The published works in this field are categorized into three main groups: occupancy detection, gesture recognition and occupant status monitoring. The paper will discuss the highlighted works and their respective advantages and limitations in terms of applications.

Smart Furniture Using Radar Technology for Cardiac Health Monitoring

“…Secondly, higher carrier frequency has higher sensitivity to small movements. Therefore, radar with higher carrier frequencies can monitor small movements more accurately 48 . There is an extensive study on different radars with different center frequencies, including 7.7, 24, and 77 GHz 41 .…”

“…Another effective parameter which can improve results is range resolution 48 . In this paper, the BGT60TR13C FMCW radar from Infineon Technologies is used.…”