From Antenna Design to High Fidelity, Full Physics Automotive Radar Sensor Corner Case Simulation

Advanced driver assistance systems (ADAS) have recently been thrust into the spotlight in the automotive industry as carmakers and technology companies pursue effective active safety systems and fully autonomous vehicles. Various sensors such as lidar (light detection and ranging), radar (radio dete...

Full description

Saved in:
Bibliographic Details
Published in:Modelling and simulation in engineering 2018-01, Vol.2018, p.1-19
Main Authors: Chipengo, Ushemadzoro, Krenz, Peter M., Carpenter, Shawn
Format: Article
Language:English
Subjects:
Accuracy
Advanced driver assistance systems
Antenna design
Antennas
Asymptotic methods
Automobile industry
Automobiles
Automotive engineering
Automotive parts
Automotive radar
Autonomous vehicles
Bandwidths
Bumpers
Computer simulation
Design optimization
Finite element method
Human error
Lidar
Metal plates
Propagation
Radar detection
Radar systems
Ray tracing
Researchers
Road construction
Roads & highways
Sensors
Situational awareness
Solvers
Spectrum allocation
System effectiveness
Target recognition
Traffic accidents & safety
Ultrasonic testing
Vehicle safety
Velocity
Workflow
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Advanced driver assistance systems (ADAS) have recently been thrust into the spotlight in the automotive industry as carmakers and technology companies pursue effective active safety systems and fully autonomous vehicles. Various sensors such as lidar (light detection and ranging), radar (radio detection and ranging), ultrasonic, and optical cameras are employed to provide situational awareness to vehicles in a highly dynamic environment. Radar has emerged as a primary sensor technology for both active/passive safety and comfort-advanced driver-assistance systems. Physically building and testing radar systems to demonstrate reliability is an expensive and time-consuming process. Simulation emerges as the most practical solution to designing and testing radar systems. This paper provides a complete, full physics simulation workflow for automotive radar using finite element method and asymptotic ray tracing electromagnetic solvers. The design and optimization of both transmitter and receiver antennas is presented. Antenna interaction with vehicle bumper and fascia is also investigated. A full physics-based radar scene corner case is modelled to obtain high-fidelity range-Doppler maps. Finally, this paper investigates the effects of inclined roads on late pedestrian detection and the effects of construction metal plate radar returns on false target identification. Possible solutions are suggested and validated. Results from this study show how pedestrian radar returns can be increased by over 16 dB for early detection along with a 27 dB reduction in road construction plate radar returns to suppress false target identification. Both solutions to the above corner cases can potentially save pedestrian lives and prevent future accidents.
ISSN:1687-5591
1687-5605
DOI:10.1155/2018/4239725