Road surface characterization

Mervi Hirvonen; Jussi Varis; Pekka Rantakari

Road surface characterization

Mervi Hirvonen (Inventor)
, Jussi Varis (Inventor)
, Pekka Rantakari (Inventor)

BA6213 RF Sensing

Research output: Patent › Patent

Abstract

According to an example aspect of the present invention, there is provided an apparatus configured at least to switch a cellular transceiver repeatedly between a cellular operating mode and a polarimetry operating mode, wherein in the polarimetry operating mode the cellular transceiver transmits, using beamforming, a signal comprising orthogonal polarization components and measures reflected or backscattered energy originating in the transmitted signal, and estimate, based on polarization measurement data obtained from the reflected or backscattered energy, whether a road surface toward which the transmitted signal is directed is wet or icy.

Patent family as of 16.7.2026
EP4680989 A1, FI131833 B, FI20235298 A, WO24189265 A1

Original language	English
Patent number	FI 131833 B1
IPC	G01S13/93
Priority date	14/03/23
Filing date	14/03/23
Publication status	Published - 29 Dec 2025
MoE publication type	H1 Granted patent

Cite this

@misc{b5cc8434c3e542a1829b579f95af4a07,

title = "Road surface characterization",

abstract = "According to an example aspect of the present invention, there is provided an apparatus configured at least to switch a cellular transceiver repeatedly between a cellular operating mode and a polarimetry operating mode, wherein in the polarimetry operating mode the cellular transceiver transmits, using beamforming, a signal comprising orthogonal polarization components and measures reflected or backscattered energy originating in the transmitted signal, and estimate, based on polarization measurement data obtained from the reflected or backscattered energy, whether a road surface toward which the transmitted signal is directed is wet or icy. Patent family as of 16.7.2026 EP4680989 A1, FI131833 B, FI20235298 A, WO24189265 A1",

author = "Mervi Hirvonen and Jussi Varis and Pekka Rantakari",

year = "2025",

month = dec,

day = "29",

language = "English",

type = "Patent",

note = "FI 131833 B1; G01S13/93",

}

TY - PAT

T1 - Road surface characterization

AU - Hirvonen, Mervi

AU - Varis, Jussi

AU - Rantakari, Pekka

PY - 2025/12/29

Y1 - 2025/12/29

N2 - According to an example aspect of the present invention, there is provided an apparatus configured at least to switch a cellular transceiver repeatedly between a cellular operating mode and a polarimetry operating mode, wherein in the polarimetry operating mode the cellular transceiver transmits, using beamforming, a signal comprising orthogonal polarization components and measures reflected or backscattered energy originating in the transmitted signal, and estimate, based on polarization measurement data obtained from the reflected or backscattered energy, whether a road surface toward which the transmitted signal is directed is wet or icy. Patent family as of 16.7.2026 EP4680989 A1, FI131833 B, FI20235298 A, WO24189265 A1

AB - According to an example aspect of the present invention, there is provided an apparatus configured at least to switch a cellular transceiver repeatedly between a cellular operating mode and a polarimetry operating mode, wherein in the polarimetry operating mode the cellular transceiver transmits, using beamforming, a signal comprising orthogonal polarization components and measures reflected or backscattered energy originating in the transmitted signal, and estimate, based on polarization measurement data obtained from the reflected or backscattered energy, whether a road surface toward which the transmitted signal is directed is wet or icy. Patent family as of 16.7.2026 EP4680989 A1, FI131833 B, FI20235298 A, WO24189265 A1

UR - https://fi.espacenet.com/publicationDetails/biblio?II=0&ND=3&adjacent=true&locale=fi_FI&FT=D&date=20240919&CC=WO&NR=2024189265A1&KC=A1

M3 - Patent

M1 - FI 131833 B1

Y2 - 2023/03/14

ER -

Road surface characterization

Abstract

Other files and links

Fingerprint

Cite this