Automotive Radar Sensor - Wave Propagation Issues and Their Mitigation

Autor: Stefan Görner, Urs Lubbcrt, Christian Sturm, Michal Mandlik, Vladimir Brazda

Publikováno v: 2018 International Symposium ELMAR.

The goal of this contribution is to describe issues in automotive radar signal processing caused by radiowave propagation in real scenarios. A few physical phenomena negatively influence a radar sensor's performance from its function point of view. O

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::91992b61a7f3cb5058f622a088ee3c33
https://doi.org/10.23919/elmar.2018.8534589

Estimation of optical attenuation in reduced visibility conditions in different environments across free space optics link

Autor: Carlo Capsoni, Kapal Dev, Ondrej Fiser, Vladimir Brazda, Roberto Nebuloni

Publikováno v: IET microwaves, antennas & propagation
11 (2017): 1708–1713. doi:10.1049/iet-map.2016.0872
info:cnr-pdr/source/autori:Dev K.; Nebuloni R.; Capsoni C.; Fiser O.; Brazda V./titolo:Estimation of optical attenuation in reduced visibility conditions in different environments across free space optics link/doi:10.1049%2Fiet-map.2016.0872/rivista:IET microwaves, antennas & propagation (Print)/anno:2017/pagina_da:1708/pagina_a:1713/intervallo_pagine:1708–1713/volume:11

Low-visibility events detected in the city of Milan (Italy) and in the mountainous site of Milesovka (Czech Republic) during several months are analysed to compare optical attenuation measurements collected by a laser link and by a visibility sensor.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61a7b816d93550ad4e5301d8214e4316
https://digital-library.theiet.org/content/journals/10.1049/iet-map.2016.0872

Propagation over terrain considering refractivity profiles

Autor: Vladimir Brazda, Vladimir Schejbal, Zdenek Nemec, Radovan Dolecek, Ondrej Fiser

Publikováno v: 2016 26th International Conference Radioelektronika (RADIOELEKTRONIKA).

The physical optics (PO) calculations have been utilized for numerical simulations of electromagnetic field above irregular ground. The PO approximation and numerical simulations using parabolic equation method are used for new comparison with findin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7f956559ecd3f311f46ee54a5f30d234
https://doi.org/10.1109/radioelek.2016.7477342

First Ka and Q band results of atmospheric attenuation measurements using Alphasat receiver in Czech Republic

Autor: Vladimir Brazda, Viktor Pek, Ondrej Fiser

Publikováno v: 2016 26th International Conference Radioelektronika (RADIOELEKTRONIKA).

This contribution is describing interesting attenuation events in 39 and 19 GHz frequency bands using the measurement of signal of satellite Alphasat in Prague. Rain rates at two sites were measured continuously. A table of highest measured attenuati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::10190cf5dcd43df634af0c3f31a84c53
https://doi.org/10.1109/radioelek.2016.7477398

Different atmospheric effects causing FSO link attenuation: experimental results and modelling in Czech Republic

Autor: Ondrej Fiser, Otakar Wilfert, Vladimir Brazda

Publikováno v: Laser Communication and Propagation through the Atmosphere and Oceans IV.

The four year FSO link attenuation measurement concurrently with most important meteorological parameters was performed at our mountain observatory Milesovka. In this contribution we summarize and classify different atmospheric phenomena after the FS

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8c1c89dc57812dc06b13e57429641d38
https://doi.org/10.1117/12.2188348