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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 65  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
SIP, IT, RCS 2024-01-19
10:20
Miyagi
(Primary: On-site, Secondary: Online)
Experimental Results of a Channel Sounder for Underwater Acoustic Communications in Sharrow Sea Environment
Kouichi Hashimoto, Taichi Fujita, Takumi Yoshimura, Hiroshi Kubo (Ritsumeikan Univ.) IT2023-58 SIP2023-91 RCS2023-233
Doubly-selectivity of underwater acoustic communications (UWACs) can be measured by channel sounders, which estimate tim... [more] IT2023-58 SIP2023-91 RCS2023-233
pp.151-156
OCS, CS
(Joint)
2024-01-12
13:30
Kagoshima   Study on Construction of Two-Dimensional Optical ZCZ Sequences Suitable for 2D-PPM-OCDMA
Yasuaki Ohira, Takahiro Matsumoto (Kagoshima Univ.), Hideyuki Torii (Kanagawa Inst. of Tech.), Yuta Ida (Yamaguchi Univ.) CS2023-102
In this paper, we propose the new two-dimensional (2D) optical code-division multiple access (OCDMA) with pulse position... [more] CS2023-102
pp.39-42
EA, US
(Joint)
2023-12-22
15:20
Fukuoka   [Poster Presentation] Performance evaluation of acoustic test signals under discrete Fourier transform-based framework
Hideki Kawahara (Wakayama Univ.), Kohei Yatabe (Tokyo Univ. Agriculture and Tech.), Mitsunori Mizumachi (Kyushi Inst. Tech.), Ken-Ichi Sakakibara (Health Sci. Univ. Hokkaido), Tatsuya Kitamura (Konan Univ.) EA2023-57
We introduced a unified framework for impulse response measurement using popular test signals and our newly proposed one... [more] EA2023-57
pp.49-56
UWT
(2nd)
2023-11-27
14:50
Shiga Ritsumeikan University Biwako-Kusatsu Campus (BKC) [Invited Talk] A Channel Sounder for Underwater Acoustic Communications and its Experimental Results in Sharrow Sea Environment
Hiroshi Kubo, Kouichi Hashimoto, Taichi Fujita, Takumi Yoshimura (Ritsumeikan Univ.)
Doubly-selectivity of underwater acoustic communications (UWACs) can be measured by channel sounders, which estimate tim... [more]
EMCJ 2023-11-24
13:00
Tokyo Kikai-Shinko-Kaikan
(Primary: On-site, Secondary: Online)
Detection Sensitivity Improvement by Removing Reflected Pulse Influence from a Bus Type Network Branch in Sequence Time Domain Reflectometry
Takashi Kakiuchi, Kengo iokibe, Yoshitaka Toyota (Okayama Univ) EMCJ2023-73
Using the fact that cross-correlation between transmitted and reflected pulses in Sequence Time Domain Reflectometry can... [more] EMCJ2023-73
pp.7-12
US 2023-10-18
13:30
Miyagi Tohoku Univ. and Online
(Primary: On-site, Secondary: Online)
Effect of interleaving HIFU pulses between imaging pulses in triplet pulse sequence on bubble imaging sensitivity
Nao Yoshida, Shota Kuji (Tohoku Univ.), Shin Yoshizawa (Tohoku Univ./SONIRE Therapeutics) US2023-37
High-intensity focused ultrasound (HIFU) is a method of treating cancer by focusing ultrasound from outside the body, an... [more] US2023-37
pp.1-4
RCS, AP, UWT
(Joint)
2022-11-15
14:30
Fukuoka Kyushu University, and Online
(Primary: On-site, Secondary: Online)
A Channel Sounder for Severe Doubly-Selective Channels of Underwater Acoustic Communications
Hiroshi Kubo, Kouichi Hashimoto, Taichi Fujita, Takumi Yoshimura (Ritsumeikan Univ.) RCS2022-161
Doubly-selectivity of underwater acoustic communications (UWAC) can be measured by channel sounders, which estimate time... [more] RCS2022-161
pp.37-42
US 2022-07-29
14:20
Fukuoka Kyushu Univ. (Chikushi Campus) Cross-correlation processing of unipolar-coded pulse compression for contrast-enhanced ultrasound
Yuki Hagihara, Kenji Yoshida, Tadashi Yamaguchi, Shinnnosuke Hirata (Chiba Univ.) US2022-24
Contrast-enhanced ultrasound is a technique for selectively acquiring vascular images by visualizing only non-linear ech... [more] US2022-24
pp.22-25
SIP, BioX, IE, MI, ITE-IST, ITE-ME [detail] 2022-05-19
09:20
Kumamoto Kumamoto University Kurokami Campus
(Primary: On-site, Secondary: Online)
A sequence design for a Phase-Coded Pulse radar using Discrete Prolate Spheroidal Sequences
Yutaka Jitsumatsu (Tokyo Tech.) SIP2022-2 BioX2022-2 IE2022-2 MI2022-2
We study the design of signals for phase-coded pulse radar so that the absolute values of function values other than the... [more] SIP2022-2 BioX2022-2 IE2022-2 MI2022-2
pp.7-12
NLC, IPSJ-NL, SP, IPSJ-SLP [detail] 2021-12-02
15:50
Online Online Simultaneous measurement of linear, non-linear, random responses of pitch extrctors to frequency modulated voiced sounds -- application of extended time-stretched-pulse sequence with orthogonalization --
Hideki Kawahara (Wakayama Univ.), Ken-Ichi Sakakibara (Health Science Univ. okkaido), Kohei Yatabe (Waseda Univ.), Tatsuya Kitamura (Konan Univ.), Hideki Banno (Meijo Univ.), Masanori Morise (Meiji Univ.) NLC2021-23 SP2021-44
We measured the linear time invariant, the non-linear time invariant, and random and time varying responses, of pitch ex... [more] NLC2021-23 SP2021-44
pp.27-32
WBS, RCC, SAT, MICT
(Joint) [detail]
2021-05-21
09:20
Online Online (Zoom) BPPM frame synchronization method in RGB-LED parallel transmission
Jyo Matsushima, Tomohiro Kiguchi, Hiromasa Habuchi (Ibaraki Univ.) WBS2021-12 RCC2021-12 SAT2021-10 MICT2021-8
In this paper, a frame synchronization method for parallel RGB-LED transmission is proposed in optical wireless communic... [more] WBS2021-12 RCC2021-12 SAT2021-10 MICT2021-8
pp.62-65(WBS), pp.62-65(RCC), pp.50-53(SAT), pp.40-43(MICT)
SP, EA, SIP 2020-03-03
12:35
Okinawa Okinawa Industry Support Center
(Cancelled but technical report was issued)
Real-time visualization of reverberation time using frequency domain variants of velvet noise
Hideki Kawahara (Wakayama Univ.), Ken-Ichi Sakakibara (Health Science Univ. Hokkaido), Mitsunori Mizumachi (Kyushu Inst. Tech.), Masanori Morise (Meiji Univ.), Hideki Banno (Meijo Univ.) EA2019-159 SIP2019-161 SP2019-108
We introduce a wavelet-based method for real-time visualization of reverberation time for extending acoustic measurement... [more] EA2019-159 SIP2019-161 SP2019-108
pp.337-342
EA, EMM 2019-11-23
11:10
Ishikawa Kanazawa Institute of Technology [Invited Talk] Velvet noise and frequency domain variants of Velvet noise -- The unexpected emergence of a strange signal forces us to revisit sounds and auditory perception --
Hideki Kawahara (Wakayama Univ.) EA2019-65 EMM2019-93
A sparse and random sequence of 1 and -1 sounds like noise. Moreover, it sounds smoother than white Gaussian noise and c... [more] EA2019-65 EMM2019-93
pp.69-74
EA, ASJ-H 2019-10-29
13:00
Tokyo NHK Science&Technology Research Lab. Application of frequency domain variants of velvet noise to multi-aspect measurement of acoustic systems
Hideki Kawahara (Wakayama Univ.), Ken-Ichi Sakakibara (Health Science Univ. Hokkaido), Mitsunori Mizumachi (Kyushu Inst. Tech.), Masanori Morise (Meiji Univ.), Hideki Banno (Meijo Univ.), Toshio Irino (Wakayama Univ.) EA2019-47
We introduce FVN (Frequency domain variants of Velvet Noise), a new member of TSP (Time Stretched Pulse), which consists... [more] EA2019-47
pp.69-75
AP 2019-10-18
13:35
Osaka Osaka Univ. Beam Scanning Three-Dimensional Monopulse Antenna for Flying Cars Collision Avoidance
Shunya Kitahara, Nana Narukawa, Koichi Ogawa, Kazuhiro Honda (Toyama Univ.) AP2019-103
This paper presents the beam scanning three-dimensional monopulse antenna for flying cars collision avoidance. In our pr... [more] AP2019-103
pp.125-130
EA, ASJ-H, ASJ-AA 2019-07-17
13:00
Hokkaido SAPPORO COMMUNITY PLAZA Extension of acoustic measurement procedures based on frequency domain variants of the velvet noise
Hideki Kawahara (Wakayama Univ.), Ken-Ichi Sakakibara (Health Science Univ.), Mitsunori Mizumachi (Kyutech) EA2019-15
The frequency domain velvet noise (FVN) is a member of the time stretched pulse (TSP) in the broader sense
because the... [more]
EA2019-15
pp.77-82
WBS, SAT
(Joint)
2019-05-16
09:00
Aichi MEIJO University (Tempaku campus) Sparse Frequency Diversity Design using ABC in Multiple Frequency Stepped Pulse Radar
Takayuki Inaba, Takumi Taniguchi, Manabu Akita (UEC) WBS2019-6
Authors have proposed stepped multiple frequency radar modulation. It could achieve both a high range resolution and a l... [more] WBS2019-6
pp.29-34
RCS, SR, SRW
(Joint)
2018-02-28
14:10
Kanagawa YRP Channel Impulse Response Measurement Using USRP and GNU Radio Avoiding Uncertain Latency
Kaito Fukushima, Mika Kamishima, Yoji Yamada (NIT, Ishikawa College) SR2017-113
Channel impulse response measurements are important in wireless system design. A software-defined radio equipment (PC-SD... [more] SR2017-113
pp.9-16
US 2017-10-05
15:20
Miyagi   Pulse compression of parametric sound using M-sequence phase modulation
Riku Nishioka, Hideyuki Nomura (UEC) US2017-61
The application of pulse compression to parametric ultrasound using chirp modulation have been proposed to realize low-f... [more] US2017-61
pp.27-32
US 2017-05-22
13:55
Tokyo   Non-contact measurement of body-surface displacement by breathing and heart beat using airborne acoustic images
Taiki Hayashi, Shinnosuke Hirata, Hiroyuki Hachiya (Tokyo Inst. of Tech.) US2017-15
Today, vital signs measurement systems, in which sensors are had contact with or closed to body surface, are widely prev... [more] US2017-15
pp.7-12
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