Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Constantinos I. Votis"'
Autor:
Constantinos I. Votis, Giorgos Tatsis, Vasilis Christofilakis, Spyridon K. Chronopoulos, Panos Kostarakis, Vasilis Tritakis, Christos Repapis
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2018, Iss 1, Pp 1-12 (2018)
Abstract Schumann resonance oscillation detection is a complex procedure which requires customized and high-quality measurement systems. The primary objective of this work was to design and implement a stand-alone, portable, and low-cost receiver abl
Externí odkaz:
https://doaj.org/article/8ea82315cc414369969f9844353c35d7
Publikováno v:
International Journal of Antennas and Propagation, Vol 2010 (2010)
This paper reports measured results of a multielement antenna implementation, we constructed, that performs at 2.4 GHz ISM band. Particular emphasis was given to the scattering parameters and validation characterization of this antenna structure. The
Externí odkaz:
https://doaj.org/article/c95fc532efe64668b45d9a1b1ffadd17
Autor:
Panos Kostarakis, Ch. Repapis, Vasilis Christofilakis, Giorgos Tatsis, V. Tritakis, Constantinos I. Votis
Publikováno v:
Scopus-Elsevier
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bf47623cb8542ae6920f85d5595b012
https://doi.org/10.25103/jestr.096.16
https://doi.org/10.25103/jestr.096.16
Autor:
Constantinos I. Votis, Panos Kostarakis, Giorgos Tatsis, P. Kalavrezos, V. Tritakis, Christos Repapis, Vasilis Christofilakis
Publikováno v:
Journal of Engineering Science and Technology Review. 9:61-64
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed6cfb42625bbe6028bfe2712da13534
https://doi.org/10.25103/jestr.094.09
https://doi.org/10.25103/jestr.094.09
Autor:
Giorgos Tatsis, Panos Kostarakis, Christos Repapis, Vasilis Christofilakis, Constantinos I. Votis, V. Tritakis
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 135:152-160
In this paper, a cost-effective prototype data acquisition system specifically designed for Schumann resonance measurements and an adequate signal processing method are described in detail. The implemented system captures the magnetic component of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a257f5dbfc4976bccd6203eae80b70c3
https://doi.org/10.1016/j.jastp.2015.11.001
https://doi.org/10.1016/j.jastp.2015.11.001
Autor:
Katerina K. Naka, Efthimios S. Skordas, Panos Kostarakis, Spyridon K. Chronopoulos, A. Bechlioullis, Nicholas V. Sarlis, Constantinos I. Votis, Dimitrios Peschos, Giorgos Tatsis, G. Baldoumas, Vasilis Christofilakis
Publikováno v:
MOCAST
In this paper, we present a comparison of two non invasive digital systems. The one is a portable electrocardiograph (ECG) and the second a finger pulse Oximeter that was designed and assembled in our laboratory. The ultimate goal is to use a simple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10771e73cce4c660bd370a25ba31262d
https://doi.org/10.1109/mocast.2018.8376587
https://doi.org/10.1109/mocast.2018.8376587
Autor:
Giorgos Baldoumas, Peschos, Dimitrios, Giorgos Tatsis, Constantinos I. Votis, Chronopoulos, Spyridon K., Christofilakis, Vasilis, Kostarakis, Panos, Sarlis, Nikolaos V., Skordas, Efthimios S, Naka, Katerina K., Bechlioullis, Aris
We present a comparison of two non invasive digital systems. The one is a portable electrocardiograph (ECG) and the second a finger pulse Oximeter that was designed and assembled in our laboratory. The ultimate goal is to use a portable device such a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d8f52e23e3983c8f784d2c6e85806ea
Publikováno v:
International Journal of Electronics. 103:648-666
This work presents an experimental study of Single Input Multiple Output (SIMO) channel performance in indoor radio propagation environment. Indoor channel measurements at 2.4 GHz ISM frequency band have been performed using a versatile channel sound
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::150962cec09d15d5014a5f4ffd07d799
https://doi.org/10.1080/00207217.2015.1036810
https://doi.org/10.1080/00207217.2015.1036810
Autor:
Constantinos I. Votis, Panos Kostarakis, Christos Repapis, Vasilis Christofilakis, Giorgos Tatsis, V. Tritakis
Publikováno v:
2017 Panhellenic Conference on Electronics and Telecommunications (PACET).
In this paper A portable detection system for Schumann resonances (SR) measurements is presented. SR are ELF natural electromagnetic eigenmodes in Earth-ionosphere cavity. These electromagnetic waves have been suggested to monitor climate, electrical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::470ecba51d40cfc2e465e3ee7b22538c
https://doi.org/10.1109/pacet.2017.8259989
https://doi.org/10.1109/pacet.2017.8259989
Publikováno v:
Journal of Circuits, Systems and Computers. 20:515-529
The design of a multiple-output transmitter for digital beamforming (DBF), Multiple-Input Multiple-Output (MIMO) and channel sounder applications, based on Direct Digital Synthesis (DDS) system is presented and investigated in terms of antenna array
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::736dbc6632e65146fcafaa831737f63d
https://doi.org/10.1142/s0218126611007426
https://doi.org/10.1142/s0218126611007426