Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Seishiro Ishii"'
Autor:
Shuji Sayama, Seishiro Ishii
Publikováno v:
IEEJ Transactions on Fundamentals and Materials. 139:618-624
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6cc090255b2e71b84aed7984f647ae3
https://doi.org/10.1541/ieejfms.139.618
https://doi.org/10.1541/ieejfms.139.618
Autor:
Seishiro Ishii, Shuji Sayama
Publikováno v:
IEEJ Transactions on Fundamentals and Materials. 138:230-236
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e40cbaa3af93265430fc70cdb6e412de
https://doi.org/10.1541/ieejfms.138.230
https://doi.org/10.1541/ieejfms.138.230
Publikováno v:
Wireless Engineering and Technology. :51-58
In this paper, we focus on PHYTOPOROUS, a porous carbon material made entirely from plant-based ingredients, as a new broadband-wave absorber material that acts in the millimeter wave band. We created prototypes of thin rubber-sheet wave absorbers th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4dd04afe0abb70d0720f7fbd2133fc95
https://doi.org/10.4236/wet.2017.83004
https://doi.org/10.4236/wet.2017.83004
Publikováno v:
Electronics and Communications in Japan. 99:13-21
We observed sea clutter in the sea area east of the Daini Kaiho sea fort in Tokyo Bay using an X-band radar, and obtained data from 21,996 cells by 47 consecutive observations. In order to investigate the statistical properties, we performed estimati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e9502e593281e43512fdec017a973d3
https://doi.org/10.1002/ecj.11815
https://doi.org/10.1002/ecj.11815
Publikováno v:
Wireless Engineering and Technology. :59-66
In recent years, there has been increased interest in the terahertz waveband for application to ultra-high-speed wireless communications and remote sensing systems. However, atmospheric propagation at these wavelengths has a significant effect on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56f4cac33bf96ced534ad642dab77545
https://doi.org/10.4236/wet.2016.72006
https://doi.org/10.4236/wet.2016.72006
Publikováno v:
IEEJ Transactions on Fundamentals and Materials. 135:1-8
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f391c1b67a307fb92e6c494b5544572
https://doi.org/10.1541/ieejfms.135.1
https://doi.org/10.1541/ieejfms.135.1
Suppression of Weather Clutter by Means of Log-Normal/CFAR Circuit Modified from CA LOG/CFAR Circuit
Autor:
Shuji Sayama, Seishiro Ishii
Publikováno v:
Electrical Engineering in Japan. 187:1-9
SUMMARY We have observed weather clutter including targets (ships) using an S-band radar with a frequency of 3.05 GHz, a beamwidth of 1.8°, and a pulse width of 0.5 μs. To investigate weather clutter amplitude statistics, we introduce the Akaike in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64fd002d9629f248b890efe1cc358715
https://doi.org/10.1002/eej.22514
https://doi.org/10.1002/eej.22514
Autor:
Shuji Sayama, Seishiro Ishii
Publikováno v:
Wireless Engineering and Technology. :125-133
We have observed weather clutter containing targets (ships) using an S-band radar with a frequency 3.05 GHz, a beam width 1.8°, and a pulsewidth 0.5 μs. To investigate the weather clutter amplitude statistics, we introduce the Akaike Information Cr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62094441aa39effb482c6dfe7f64841a
https://doi.org/10.4236/wet.2013.43019
https://doi.org/10.4236/wet.2013.43019
Autor:
Seishiro Ishii, Shuji Sayama
Publikováno v:
IEEJ Transactions on Fundamentals and Materials. 132:886-892
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::850ef818cd5fc3c3cf62a4610c1a8cb1
https://doi.org/10.1541/ieejfms.132.886
https://doi.org/10.1541/ieejfms.132.886
Publikováno v:
Wireless Engineering and Technology. :119-124
Rain attenuation at 355.2 GHz in the terahertz wave range was measured with our new 355.2 GHz measuring system under rainfall intensities up to 25 mm/hr. Rain attenuation coefficients were also calculated using four raindrop-size distributions, e Mar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8294516cfc8739d832da1677795511ce
https://doi.org/10.4236/wet.2011.23017
https://doi.org/10.4236/wet.2011.23017