Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
AP, SAT, SANE (Joint) |
2017-07-28 14:40 |
Aichi |
Nagoya Institute of Technology |
Water vapor estimation using the propagation delay of digital terrestrial broadcasting waves
-- Measurements of propagation delay by reflection method and analysis toward the detection of the reflection target -- Takeharu Kouketsu, Seiji Kawamura, Hiroshi Hanado, Hiroki Ohta (NICT) AP2017-64 SANE2017-27 |
The authors are developing a method to estimate water vapor (propagation delay due to water vapor) using digital terrest... [more] |
AP2017-64 SANE2017-27 pp.105-110(AP), pp.31-36(SANE) |
AP |
2017-03-17 11:20 |
Iwate |
Iwate Univ. |
Study of measurement accuracy in precise propagation measurement using the Digital Terrestrial Television Broadcasting signal Hiroki Ohta (NICT) AP2016-194 |
We are studying precise propagation measurement using terrestrial digital broadcasting and have been studying the influe... [more] |
AP2016-194 pp.93-98 |
AP |
2016-01-14 15:35 |
Tokyo |
Takushoku University, Hachiouji Campus |
[Invited Lecture]
Water vapor estimation using the propagation delay of digital terrestrial broadcasting waves
-- Results using reflected waves -- Seiji Kawamura, Hiroki Ohta, Hiroshi Hanado, Masayuki Yamamoto, Nobuyasu Shiga, Kohta Kido, Satoshi Yasuda, Tadahiro Gotoh, Ryuichi Ichikawa, Jun Amagai, Kuniyasu Imamura, Miho Fujieda, Kentaro Ishizu, Hironori Iwai, Shigeo Sugitani (NICT) AP2015-176 |
A water vapor measurement system using digital terrestrial broadcasting wave is under investigation. A real-time delay m... [more] |
AP2015-176 pp.47-52 |
WIT, HI-SIGACI |
2015-12-08 17:10 |
Tokyo |
AIST Tokyo Waterfront |
Development and evaluation of support system for self-sustainable living capable of walking from recumbent position Koushi Tokoro, Hiroki Ohta, Hiroshi Kobayashi (TUS) WIT2015-69 |
We have been developing nursing care equipment, Support system for self-sustainable living, which decreases caregiver bu... [more] |
WIT2015-69 pp.33-38 |
AP, SANE (Joint) |
2015-08-28 14:10 |
Ibaraki |
Ibaragi Univ. Mito Campus |
A study of multipoint synchronization measurement method using the digital terrestrial television broadcasting signals Hiroki Ohta (NICT) AP2015-75 |
[more] |
AP2015-75 pp.83-88 |
AP, SAT (Joint) |
2014-07-25 12:45 |
Gifu |
Gero Citizen Hall |
Precision measurement of the propagation characteristics using the Digital Terrestrial Television Broadcasting
-- Measurement method using a single channel -- Hiroki Ohta (NICT) AP2014-64 SAT2014-17 |
[more] |
AP2014-64 SAT2014-17 pp.91-96(AP), pp.29-34(SAT) |
AP |
2014-05-30 09:20 |
Okinawa |
Okinawa Industory Support Center |
Precise measurement method of propagation characteristics using the Digital Terrestrial Television Broadcasting Hiroki Ohta (NICT) AP2014-28 |
[more] |
AP2014-28 pp.53-58 |
AP, ITE-BCT |
2012-02-09 11:25 |
Hiroshima |
NHK Hiroshima |
A study on suppression of the phase noise in the analysis of the propagation path profile Hiroki Ohta (NICT) |
We are considering the measurement technology of the propagation path profiles using a digital terrestrial broadcast sig... [more] |
|
EMCJ, IEE-EMC |
2011-10-28 11:25 |
Aomori |
Hachinohe Grand Hotel |
Effects of Noise Radiation from LED Bulbs on Communications and Broadcasting Services Ifong Wu, Hiroki Ohta, Shinobu Ishigami, Yasushi Matsumoto (NICT) EMCJ2011-83 |
[more] |
EMCJ2011-83 pp.11-16 |
WBS, SAT (Joint) |
2011-05-09 13:00 |
Okinawa |
Okinawa Subtropical Environment Remote-Sensing Center |
Synchronization of Symbol Timing for Measurement of Direction of Propagation in Digital Terrestrial Television Akira Nakamura, Kohei Ohno (TUS), Hiroki Ohta (NICT), Makoto Itami (TUS) WBS2011-1 |
[more] |
WBS2011-1 pp.1-6 |
WBS, SAT (Joint) |
2010-06-11 09:20 |
Okinawa |
Okinawa-ken-Seinen-Kaikan |
Estimation of Arrival Time for Measurement of Direction of Propagation in Digital Terrestrial Television Akira Nakamura, Sho Nabatame, Takamasa Kuge, Kohei Ohno (Tokyo Univ. of Sci.), Hiroki Ohta (NICT), Makoto Itami (Tokyo Univ. of Sci.) WBS2010-7 |
An improvement scheme for degradation of reception characteristics of the digital terrestrial television broadcasting (D... [more] |
WBS2010-7 pp.35-40 |
EMCJ, ITE-BCT |
2010-03-12 13:25 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
The propagation characteristics analysis by transfer function connection of channels
-- A study on adjustment value of the delay profile -- Hiroki Ohta (NICT), Makoto Itami (Tokyo Univ. of Sci.) EMCJ2009-128 |
[more] |
EMCJ2009-128 pp.13-18 |
AP |
2009-12-17 13:30 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Study of the measurement technique and the analysis method for the OFDM under multi-path condition Hiroki Ohta (NICT), Yoneo Akita (mebius) AP2009-150 |
[more] |
AP2009-150 pp.47-52 |
MoNA, ITE-BCT, ITE-CE |
2008-09-26 14:45 |
Miyagi |
Research Institute of Electrical Communication, Tohoku University |
The Results of Mobile Reception Experiments for Digital Terrestrial Broadcasting on Bullet Train using Directional Diversity Raita Yamasaki, Toru Iwasaki, Kenichi Tsuchida, Masayuki Takada, Kazuhiko Shibuya (JBC), Hiroki Ohta (NICT), Kazuhiro Yamada, Junji Kawazu (JR Central) MoMuC2008-57 |
[more] |
MoMuC2008-57 pp.87-90 |
MoNA, ITE-BCT, ITE-CE |
2008-09-26 15:15 |
Miyagi |
Research Institute of Electrical Communication, Tohoku University |
A study of the propagation characteristics for the portable TV terminal in SFN-GF service area Hiroki Ohta (NICT) MoMuC2008-58 |
[more] |
MoMuC2008-58 pp.91-96 |
MoNA, ITE-BCT, ITE-CE |
2006-09-14 10:50 |
Osaka |
Osaka Musium of History |
A countermeasure to the new service space of the digital broadcasting
-- The examination of the relay technology to the inside -- Hiroki Ohta (NICT) MoMuC2006-39 |
[more] |
MoMuC2006-39 pp.13-18 |
MoNA, ITE-BCT, ITE-CE |
2006-09-14 11:15 |
Osaka |
Osaka Musium of History |
Study on Receiving Characteristics for the 1 Segment Portable Receiver Shunichi Sato, Seiichi Tanaka, Atushi Goto, Yoshiaki Kudo, Haruki Nakashima (Sharp), Hiroki Ohta (NICT) MoMuC2006-40 |
To improve the reception performance of the 1 segment portable receiver, we have constructed the multipath fading enviro... [more] |
MoMuC2006-40 pp.19-23 |
MoNA, ITE-BCT, ITE-CE |
2006-09-14 15:30 |
Osaka |
Osaka Musium of History |
-
-- - -- Hiroki Ohta (NICT), Yoneo Akita (日本テクトロニクス) MoMuC2006-44 |
[more] |
MoMuC2006-44 pp.45-50 |
AP |
2005-12-15 11:45 |
Tokyo |
Tokyo Inst. of Tech. |
NICT digital terrestrial television broadcasting test bed
-- A study of a measurement method for OFDM -- Hiroki Ohta (NICT), Yoneo Akita (Tektronix) |
In Japan, Digital terrestrial television broadcasting partial mode will be start at April in 2006 for mobile users and p... [more] |
AP2005-121 pp.29-34 |
MoNA |
2005-09-08 15:00 |
Kyoto |
Kei-Han-Na NICT |
The digital terrestrial television broadcasting test bed
-- A study of propagation path models for mobile reception and cellular phone -- Hiroki Ohta (NICT) |
In Japan, Digital terrestrial television broadcasting has been started since December 2004. After that, a partial recept... [more] |
MoMuC2005-40 pp.55-60 |