Dual-Polarised Radiometer for Road Surface Characterisation
Journal article, 2022
This paper presents measurements using a dual-polarised radiometer operating at 93 GHz to detect ice or water on asphalt in laboratory conditions. The brightness temperatures of both H and V polarizations were measured for a dry surface, liquid water, and ice on asphalt at observation angles of 50° and 56°. The results presented in this paper demonstrate that the studied road conditions can be identified by the radiometer. The measurements are compared with a model and surface parameters, such as dielectric constant and roughness are fitted and compared to reference values. The experiments and results, described in this article, are the first steps towards the future installation of a polarimetric sensor on a moving vehicle for traffic safety.
Polarimetry
Road
Polarization
Radiometer
Sky
Reflection
Terahertz
Schottky diodes
Microwave
Asphalt
Ice
Remote sensing
Emission
Water
Brightness temperature
Author
Olivier Auriacombe
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
Vessen Vassilev
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
Nicolas Pinel
Institut Catholique des Arts et Métiers
Journal of Infrared, Millimeter, and Terahertz Waves
1866-6892 (ISSN) 18666906 (eISSN)
Vol. 43 1-2 108-124Subject Categories
Other Engineering and Technologies not elsewhere specified
Infrastructure Engineering
Other Civil Engineering
DOI
10.1007/s10762-022-00847-5