Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Pavel Kovar"'
Autor:
Pavel Kovar
Publikováno v:
International Journal of Aerospace Engineering, Vol 2020 (2020)
The paper summarizes the experiences with the operation of the piNAV GPS receiver in a 1U unstabilized CubeSat operated on LEO orbit. piNAV L1 is a GPS receiver developed by an author for small satellite missions. The receiver is equipped with the 15
Externí odkaz:
https://doaj.org/article/57247caeee634c38a7b01987966b0343
Publikováno v:
Advances in Space Research. 68:3700-3716
Precise navigation for satellites of any kind is the key to future cost-effective Lunar missions. The usability of Global Navigation Satellite Systems (GNSS) for such high-altitude applications is still challenging due to reduced signal power levels,
Autor:
Jan Mikes, Pavel Kovar
Publikováno v:
2022 36th International Conference on Lightning Protection (ICLP).
Publikováno v:
2021 International Symposium ELMAR.
The innovative approach in designing the radio part of the professional VHF/UHF (narrow-band) transceivers based on the application of the digital intermediate frequency stages known from the wide-band systems is presented. The main problem is the dy
Publikováno v:
2020 International Conference on Applied Electronics (AE).
Nowadays, due to cost savings, flexibility orimprovement of service quality, modern communicationdevices solely rely on the digital domain when it comes tosignal processing. The paper presents a comfortable, fastand straightforward approach of testin
Publikováno v:
International Journal of Applied Science and Technology. 10
Publikováno v:
Electronics, Vol 8, Iss 8, p 861 (2019)
Electronics
Volume 8
Issue 8
Electronics
Volume 8
Issue 8
The paper presents the concept, implementation, and test operation of a modernized solar radio spectrograph for an investigation of the solar emission and solar bursts in radio frequency bands. Besides having a strong diagnostic significance for stud
The Digital Up and Down Converter (DUC/DDC) is a basic building part of the professional digital mobile transceiver. The paper presents DDC/DDS for dual mode professional VHF/UHF transceiver developed for railway radio. The transceiver complies ETSI
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c583d9590715975c5853bb4888853b0
http://hdl.handle.net/11025/35523
http://hdl.handle.net/11025/35523
Publikováno v:
Radiation Measurements. 139:106471
CubeSats are inexpensive tools for studying cosmic radiation. The paper presents an architecture and measurement of Lucky 7 1U CubeSat, which was launched to the quasi-synchronous polar orbit with an altitude of 520 km on June 27, 2019. The satellite
Publikováno v:
2018 28th International Conference Radioelektronika (RADIOELEKTRONIKA).
The paper presents design and application of a telemetry system for stratospheric balloon based on Internet of Things System of SigFox. The purpose of the telemetry system is balloon tracking during the stratospheric flight. It was tested on experime