Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Olli Knuuttila"'
Publikováno v:
IEEE Access, Vol 12, Pp 16652-16672 (2024)
This article addresses the challenge of vision-based proximity navigation in asteroid exploration missions and on-orbit servicing. Traditional feature extraction methods struggle with the significant appearance variations of asteroids due to limited
Externí odkaz:
https://doaj.org/article/fb863aa1e9944908b865616ebd7d1eef
Autor:
Mihkel Pajusalu, Iaroslav Iakubivskyi, Gabriel Jörg Schwarzkopf, Olli Knuuttila, Timo Väisänen, Maximilian Bührer, Mario F Palos, Hans Teras, Guillaume Le Bonhomme, Jaan Praks, Andris Slavinskis
Publikováno v:
PLoS ONE, Vol 17, Iss 3, p e0263882 (2022)
This paper describes the architecture and demonstrates the capabilities of a newly developed, physically-based imaging simulator environment called SISPO, developed for small solar system body fly-by and terrestrial planet surface mission simulations
Externí odkaz:
https://doaj.org/article/0d0bab2c700c47f28179c76af4c476d8
Autor:
Esa Kallio, Ari‐Matti Harri, Olli Knuuttila, Riku Jarvinen, Kirsti Kauristie, Antti Kestilä, Jarmo Kivekäs, Petri Koskimaa, Juha‐Matti Lukkari, Noora Partamies, Jouni Rynö, Mikko Syrjäsuo
Publikováno v:
Journal of Geophysical Research: Space Physics. 128
Auroras can be regarded as the most fascinating manifestation of space weather and they are continuously observed by ground-based and, nowadays more and more, also by space-based measurements. Investigations of auroras and geospace comprise the main
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1602cba40bf4e7fd2e1a11cacf2b1731
https://doi.org/10.1029/2023ja031414
https://doi.org/10.1029/2023ja031414
Publikováno v:
The Aeronautical Journal. 124:1281-1300
The need for autonomous location estimation in the form of optical navigation is an essential requirement for forthcoming deep space missions. While crater-based navigation might work well with larger bodies littered with craters, small sub-kilometer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82904ad0d38a36ed677f9d3d10d7a77a
https://doi.org/10.1017/aer.2020.41
https://doi.org/10.1017/aer.2020.41
Autor:
Esa Kallio, Antti Kero, Ari‐Matti Harri, Antti Kestilä, Anita Aikio, Mathias Fontell, Riku Jarvinen, Kirsti Kauristie, Olli Knuuttila, Petri Koskimaa, Jauaries Loyala, Juha‐Matti Lukkari, Amin Modabberian, Joonas Niittyniemi, Jouni Rynö, Heikki Vanhamäki, Erik Varberg
Radio waves provide a useful diagnostic tool to investigate the properties of the ionosphere because the ionosphere affects the transmission and properties of High Frequency (HF) electromagnetic waves. We have conducted a transionospheric HF-propagat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82066911945c0f028a9a34dcdb2bff85
Autor:
Ari-Matti Harri, Antti Kero, Arno Alho, Anita Aikio, Esa Turunen, Johannes Norberg, Petri Koskimaa, Heikki Vanhamäki, Olli Knuuttila, Jauaries Loyala, Riku Jarvinen, Juha-Matti Lukkari, Kirsti Kauristie, Mathias Fontell, J. Ryno, Esa Kallio, Antti Kestilä, Joonas Niittyniemi
The Suomi100 nanosatellite was launched on Dec. 3, 2018 (http://www.suomi100satelliitti.fi/eng). The 1 Unit (10 cm x 10 cm x 10 cm) polar orbit cubesat will perform geospace, ionosphere and arctic region research with a white light camera and a radio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::863befe67ebe1eeebc85daa78085d42b
https://doi.org/10.5194/egusphere-egu2020-13921
https://doi.org/10.5194/egusphere-egu2020-13921