Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Ivo Vertat"'
Autor:
Michal Pokorny, Ivo Vertat, David Panek, Pavel Hazdra, Milan Svanda, Jan Kracek, Milos Mazanek, Jiri Masopust, Pavel Karban
Publikováno v:
IEEE Access, Vol 12, Pp 11458-11469 (2024)
Contemporary beam-forming antenna arrays often use a large number of individual elements, sometimes hundreds or more, to achieve high gain for advanced applications like radar, space communication, and next-gen cellular networks. These arrays are com
Externí odkaz:
https://doaj.org/article/132bf374bdca4c7e9f798d0ff84f9b1a
Autor:
Haidar N. Al-Anbagi, Ivo Vertat
Publikováno v:
IEEE Access, Vol 11, Pp 114602-114612 (2023)
The popular small satellites already attracted attention towards the integration into the future ubiquitous Internet of Things (IoT) networks. Small satellites can act as IoT base stations to efficiently collect data from sensors in remote areas and
Externí odkaz:
https://doaj.org/article/d82bf527e84e4fd0bfc8df1b9bb012a0
Autor:
Haidar N. Al-Anbagi, Ivo Vertat
Publikováno v:
Sensors, Vol 22, Iss 8, p 2856 (2022)
Popular small satellites host individual sensors or sensor networks in space but require ground stations with directional antennas on rotators to download sensors’ data. Such ground stations can establish a single downlink communication with only o
Externí odkaz:
https://doaj.org/article/718aa7de6f2749af86d65a6a1418427c
Autor:
Ivo Vertat, Ales Vobornik
Publikováno v:
International Journal of Photoenergy, Vol 2014 (2014)
CubeSat picosatellites have a limited area of walls for solar cells assembling and the available area has to be effectively shared with other parts, such as planar antennas, optical sensors, camera lens, and access port. With standard size of solar c
Externí odkaz:
https://doaj.org/article/141769df0c8e47d294c2b6cfb39e536b
This paper deals with the design of a prototype microstrip filter, which would be suitable for integration into active phased array antennas. This novel compact microstrip lowpass filter is based on funnel shaped resonator and semi elliptical patches
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fa63ebd22cd09239ee5ef35a2b4c2d3
http://hdl.handle.net/11025/49857
http://hdl.handle.net/11025/49857
Multidimensional Cross Parity Check Codes as a Promising Solution to CubeSat Low Data Rate Downlinks
Autor:
Ludek Dudacek, Ivo Vertat
Publikováno v:
2019 International Conference on Applied Electronics (AE).
Simple cross parity check codes have been well known for decades in the areas of magnetic recording and radiation-hardened memory in space applications. However, the computational power requirements of higher dimensional cross codes mean that priorit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::523742c893b652fc98cbd09bca241a53
https://doi.org/10.23919/ae.2019.8867037
https://doi.org/10.23919/ae.2019.8867037
Autor:
A. Inneman, Y. Mora, Vladimir Daniel, R. Filgas, Jiri Masopust, P. Skala, L. Mikulickova, Eduard Belas, R. Pavlica, Z. Vykydal, T. Jamroz, Ivo Vertat, O. Nentvich, V. Zadrazil, Veronika Stehlikova, Ladislav Sieger, Ladislav Pina, Martin Urban, Stanislav Pospisil, Richard Linhart, Tomas Baca, V. Marsikova
This paper presents the results of in-orbit commissioning of the first Czech technological CubeSat satellite of VZLUSAT-1. The 2U nanosatellite was designed and built during the 2013 to 2016 period. It was successfully launched into Low Earth Orbit o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c636a3b604159ba8b2ff0c54bb05479
http://hdl.handle.net/11025/34903
http://hdl.handle.net/11025/34903
Autor:
Pavel Fiala, Ivo Vertat
Publikováno v:
2018 International Conference on Applied Electronics (AE).
Suborbital missions of sounding rockets along the parabolic trajectory are commonly used for the Earth's near space environment research or for the astrophysical observations with the time duration only in the order of several minutes. Such short-ter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5297d775bb170ca249c3200b740c4a8d
https://doi.org/10.23919/ae.2018.8501462
https://doi.org/10.23919/ae.2018.8501462
Conventional solution of the ground station for CubeSat commanding during low Earth orbit mission is based on radio amateur equipment and could be implemented quickly and with low cost. Such case is also our ground station in Pilsen, currently used f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1a70a2c27527e7fd1b25bc098516dd6
http://hdl.handle.net/11025/31257
http://hdl.handle.net/11025/31257
Small satellites such as CubeSats are not adequately protected in the cosmic environment from ionizing radiation due to the low weight limit, which does not allow the use of heavy shielding materials with the high atomic number. Therefore, the power
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9d8e9564485bb7c411a832a67266892
http://hdl.handle.net/11025/35493
http://hdl.handle.net/11025/35493