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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 69  /  [Next]  
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
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