Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
SAT, SANE (Joint) |
2024-02-09 10:45 |
Kagoshima |
AmaHome PLAZA (Amami City Shimin Koryu Center) (Primary: On-site, Secondary: Online) |
A study on the rain attenuation statistics using the different Ku-band satellite signals measured at multiple locations Yasuyuki Maekawa (Osaka Electro-Commun. Univ.), Koichi Harada, Junichi Abe, Fumihiro Yamashita (NTT) SAT2023-71 |
The signal levels of Ku-band BS broadcast radio wave and JCSAT-5A beacon radio wave have been simultaneously measured at... [more] |
SAT2023-71 pp.63-68 |
MICT, WBS, RCC, SAT (Joint) [detail] |
2023-05-26 09:25 |
Tokyo |
TOKYO BIG SIGHT (Primary: On-site, Secondary: Online) |
A study on the rain attenuation duration characteristics using the different Ku-band satellite signals measured at multiple locations Yasuyuki Maekawa (Osaka Electro-Commun. Univ.), Koichi Harada, Junichi Abe, Fumihiro Yamashita (NTT Corporation) SAT2023-5 MICT2023-5 |
The signal levels of Ku-band BS broadcast radio waves and JCSAT-5A beacon radio waves have been simultaneously measured ... [more] |
SAT2023-5 MICT2023-5 pp.20-25 |
SAT, KOSST |
2022-10-06 16:05 |
Fukuoka |
(Primary: On-site, Secondary: Online) |
Recent increase in rain attenuation statistics of Ku-band satellite communications links and its relation to the climate change Shoya Funo, Yoshiaki Shibagaki, Yasuyuki Maekawa (Osaka Electro-Commun. Univ.) SAT2022-47 |
Rain attenuation statistics of the Ku-band BS radio wave (11.84 GHz) measured over 30 years at Osaka Electro-Communicati... [more] |
SAT2022-47 pp.16-19 |
SAT, KOSST |
2022-10-06 16:55 |
Fukuoka |
(Primary: On-site, Secondary: Online) |
A study on Site Diversity Effect between Different Satellites using Rain Attenuation Characteristics of Ku-band Satellite Communication Links Yasuyuki Maekawa (Osaka Electro-Commun. Univ.), Koichi Harada, Junichi Abe, Fumihiro Yamashita (NTT) SAT2022-48 |
The signal levels of Ku-band BS broadcast radio waves and JCSAT-5A beacon radio waves have been simultaneously measured ... [more] |
SAT2022-48 pp.20-24 |
AP |
2022-02-18 13:55 |
Online |
Online |
[Invited Lecture]
Cross-polarization reduction of a Ku-band phased array with a rotatable polarization plane Makoto Sano, Koh Hashimoto, Kentaro Wada (Toshiba) AP2021-175 |
The authors have been developing a Ku-band phased array that can change the main-beam direction and the polarization pla... [more] |
AP2021-175 pp.93-98 |
SAT |
2021-10-08 11:00 |
Online |
Online |
Relationship between rain attenuation characteristics and rain area distribution on the propagation path of satellite communications links Yasuyuki Maekawa,, Yoshiaki Shibagaki (Osaka Electro-Commun. Univ.) SAT2021-49 |
Rain attenuation characteristics due to the passage of rain areas are discussed using the Ku-band BS satellite signal ob... [more] |
SAT2021-49 pp.32-35 |
WBS, RCC, SAT, MICT (Joint) [detail] |
2021-05-21 13:25 |
Online |
Online (Zoom) |
Relationship between cumulative time percentages and equivalent path lengths of rain attenuation in Ku-band satellite communication links Yasuyuki Maekawa (Osaka Electro-Commun. Univ.) WBS2021-19 RCC2021-19 SAT2021-17 |
The long-term rain attenuation statistics of cumulative time percentages are obtained from Ku band satellite signal obse... [more] |
WBS2021-19 RCC2021-19 SAT2021-17 pp.101-106(WBS), pp.101-106(RCC), pp.89-94(SAT) |
SAT |
2019-10-11 09:00 |
Fukuoka |
JR HAKATA CITY {10F RoomA+B} |
Rain Attenuation Characteristics due to Typhoon Passage in Ku-band Satellite Links Shunichi Sasaki, Yasuyuki Maekawa (Osaka Electro-Commun. Univ.) SAT2019-56 |
Rain attenuation characteristics due to typhoon passage are discussed using the Ku band satellite signal observations co... [more] |
SAT2019-56 pp.51-54 |
SAT |
2019-10-11 09:50 |
Fukuoka |
JR HAKATA CITY {10F RoomA+B} |
A Comparison between Long-term Rain Attenuation Statistics and ITU-R Prediction Methods in Ku-Band Satellite Links Kosuke Yamasaki, Yasuyuki Maekawa (Osaka Electro-Comm. Univ.) SAT2019-57 |
A remarkable increasing tendency of yearly rain attenuation statistics of cumulative time percentages is obtained from l... [more] |
SAT2019-57 pp.61-64 |
NS |
2019-04-19 10:50 |
Kagoshima |
Tenmonkan Vision Hall |
Data backup selection on the basis of disaster area at edge computing Takuma Tsubaki, Naoki Higo, Kohjun Koshiji, Toshimitsu Tsubaki, Takeshi Kuwahara, Yoshikatsu Okazaki (NTT) NS2019-13 |
Recently, edge computing (EC) has attracted attention to the spread of Internet of Things (IoT). EC places resources in ... [more] |
NS2019-13 pp.73-77 |
SAT, WBS (Joint) |
2018-05-24 13:55 |
Kagoshima |
Kagoshima University |
Recent Increasing Trend in Rain Attenuation Statistics of Ku-Band Satellite Communications Links Yasuyuki Maekawa (Osaka Electro-Commun. Univ) SAT2018-3 |
The long-term rain attenuation statistics of cumulative time percentages are obtained from Ku band satellite signal obse... [more] |
SAT2018-3 pp.11-14 |
SAT |
2017-10-26 15:15 |
Okinawa |
Okinawa Cellular Telephone Company |
Yearly Variation of Rain Attenuation Characteristics of Ku-Band Satellite Communications Links in the Tropical Region Yasuyuki Maekawa, Yu Nishimura, Yoshiaki Shibagaki (Osaka Electro-Commun. Univ.) SAT2017-45 |
Four-year rain attenuation statistics from January 2003 to September 2006 are obtained for both up and down links of Ku-... [more] |
SAT2017-45 pp.51-54 |
SAT |
2017-10-26 15:40 |
Okinawa |
Okinawa Cellular Telephone Company |
Recent Tendencies of Increase in Yearly Cumulative Time Percentages of Rain Attenuation in Ku-Band Satellite Communications Links Hidemi Miura, Yasuyuki Maekawa (Osaka Electro-Commun. Univ.) SAT2017-46 |
The long-term rain attenuation statistics of cumulative time percentages are obtained from Ku band satellite signal obse... [more] |
SAT2017-46 pp.55-58 |
AP, SAT, SANE (Joint) |
2017-07-27 11:00 |
Aichi |
Nagoya Institute of Technology |
A Study on Rain Attenuation Characteristics of Ku-Band Up- and Down-Link Satellite Communications in the Tropical Region Yu Nishimura, Yoshiaki Shibagaki, Yasuyuki Maekawa (Osaka Electro-Commun. Univ.-Commun. Univ.) AP2017-54 SAT2017-10 |
Four-year rain attenuation statistics from January 2003 to September 2006 are obtained for both up and down links of Ku-... [more] |
AP2017-54 SAT2017-10 pp.51-54(AP), pp.23-26(SAT) |
AP, SAT, SANE (Joint) |
2017-07-27 11:25 |
Aichi |
Nagoya Institute of Technology |
A Study on Relationship between Ground Wind Velocity around the Earth Station and Rain Attenuation Observation at 3 Locations in Ku-Band Satellite Communications Links Asuka Ikunami, Yoshiaki Shibagaki, Yasuyuki Maekawa (Osaka Electro-Commun. Univ.) AP2017-55 SAT2017-11 |
Speeds and directions of the motion of rain areas that cause the attenuation of Ku-band satellite communications links a... [more] |
AP2017-55 SAT2017-11 pp.55-58(AP), pp.27-30(SAT) |
AP |
2017-04-20 15:15 |
Osaka |
Osaka university |
Relationship between Tropospheric Scintillation and Atmospheric Turbulence in High Elevation Angle Satellite Communications Links Yasuyuki Maekawa (Osaka Electro-Comun. Univ.) AP2017-9 |
Variations of Ku-band satellite signal level with periods from a few to a few ten minutes caused by tropospheric scintil... [more] |
AP2017-9 pp.47-50 |
AP, SAT, SANE (Joint) |
2016-07-22 10:55 |
Hokkaido |
Otaru port marina |
Long-term Statistics of Rain Attenuation and Their Recent Trend in Ku-Band Satellite Communications Links Hidemi Miura, Yasuyuki Maekawa (Osaka Electro-Com. Univ.) AP2016-58 SAT2016-24 |
The long-term rain attenuation statistics of cumulative time percentages are obtained from Ku band satellite signal obse... [more] |
AP2016-58 SAT2016-24 pp.119-122(AP), pp.73-76(SAT) |
AP |
2016-05-19 14:50 |
Hyogo |
kobe Univ. |
Long-term Yearly Variation of Rain Attenuation Statistics in Ku-Band Satellite Communications Links Yasuyuki Maekawa, Hidemi Miura (Osaka Electro-Commun. Univ.) AP2016-20 |
The long-term rain attenuation statistics of cumulative time percentages are obtained from Ku band satellite signal obse... [more] |
AP2016-20 pp.23-26 |
SAT, WBS (Joint) |
2016-05-20 12:10 |
Aichi |
Nagoya Institute of Technology |
A Study on Relationship between Rain Front and Rain Area Velocities and Rain Attenuation Observation at 3 Locations in Ku-Band Satellite Communications Links Naoki Kubota, Yasuyuki Maekawa, Yoshiaki Shibagaki (Osaka Electro-Commun. Univ.) SAT2016-10 |
Speeds and directions of the motion of rain areas that cause the attenuation of Ku-band satellite communications links a... [more] |
SAT2016-10 pp.53-56 |
NLC, IPSJ-NL, SP, IPSJ-SLP (Joint) [detail] |
2015-12-02 16:30 |
Aichi |
Nagoya Inst of Tech. |
An analysis of difference among singers in kurtosis of LPC residual spectrum of breathy vowel voice Masahiro Itou, Hideki Banno, Kensaku Asahi (Meijo Univ.) SP2015-79 |
It is known that keeping pitch and pressure of uttered voice steady is required to improve singing capability. However, ... [more] |
SP2015-79 pp.65-69 |