Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
CAS, CS |
2024-03-15 13:50 |
Okinawa |
|
Carrier frequency offset estimation for initial acquisition in MWHCDM Masaki Kitagawa, Toshiharu Kojima (Univ of Electro-Communications) CAS2023-133 CS2023-126 |
Modified Walsh-Hadamard code division multiplexing (MWHCDM) is suitable for helicopter satellite communications, where t... [more] |
CAS2023-133 CS2023-126 pp.122-127 |
RCS, SR, SRW (Joint) |
2024-03-15 13:00 |
Tokyo |
The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
Low Complexity CSI Feedback Method Using Reformer Yuki Saito, Tomoaki Ohtsuki (Keio Univ.) RCS2023-285 |
In Massive MIMO (Multiple-Input Multiple-Output), the feedback overhead of downlink channel state information (CSI) from... [more] |
RCS2023-285 pp.134-139 |
COMP |
2023-12-22 10:00 |
Miyazaki |
Miyazaki Univ. Machinaka Campus |
Approximation Algorithms for Generalizations of Strong Connectivity Augmentation Problem Ryoma Norose, Yutaro Yamaguchi (Osaka Univ.) COMP2023-16 |
A directed graph G is said to be strongly connected if there exists a directed path between any pair of vertices in G. S... [more] |
COMP2023-16 pp.1-5 |
EA, ASJ-H |
2023-08-31 14:15 |
Miyagi |
|
Acoustic test signals for measuring reverberant transfer function and its application to critical distance estimation Hideki Kawahara (Wakayama Univ.), Kohei Yatabe (Tokyo Univ. Agri. Tech.), Ken-Ichi Sakakibara-Ichi (Health Sci. Univ. Hokkaido), Mitsunori Mizumachi (Kyushu Inst. Tech.), Tatsuya Kitamura (Konan Univ.) EA2023-20 |
We propose a dedicated test signal for acoustic measurement specifically for room acoustics based on our recent method. ... [more] |
EA2023-20 pp.14-17 |
CS |
2023-07-27 09:47 |
Tokyo |
Hachijo-machi Chamber of Commerce and Industry |
Influence of Walsh-Hadmard codes Multiplied by pseudo-random sequences on Visible Light Communication Using an Event Camera Daiki Ehara, Zhengqiang Tang (Nagoya Univ.), Masayuki Kinoshita (ChibaTech.), Takaya Yamazato, Hiraku Okada (Nagoya Univ.), Koji Kamakura (ChibaTech.), Shintaro Arai (Okayama Univ. of Sci.), Tomohiro Yendo (Nagaoka Univ. of Tech.), Toshiaki Fujii (Nagoya Univ.) CS2023-22 |
Visible light communication using an event camera in a receiver moving environment can transmit information by using Wal... [more] |
CS2023-22 pp.14-17 |
SP, IPSJ-MUS, IPSJ-SLP [detail] |
2023-06-23 13:50 |
Tokyo |
(Primary: On-site, Secondary: Online) |
On phase function design of extended time-stretched pulse based on cascaded all-pass filters Hideki Kawahara (Wakayama Univ.), Kohei Yatabe (Tokyo Univ. Agri. Tech.) SP2023-8 |
We propose a set of all-pass filter phase functions for designing extended Time-Stretched-Pulses which used a rationale ... [more] |
SP2023-8 pp.36-41 |
EA |
2023-05-25 14:00 |
Online |
Online |
Weighting functions to suppress artifacts due to cyclic convolution in acoustic measurements based on discrete Fourier transform Hideki Kawahara (Wakayama Univ.), Kohei Yatabe (Tokyo Univ. Agriculture Tech.), Mitsunori Mizumachi (Kyushu Inst. Tech.), Ken-Ichi Sakakibara (Health Science Univ. Hokkaido) EA2023-1 |
The Fast Fourier Transform (FFT) is a common practice in acoustic impulse response measurement and processing due to its... [more] |
EA2023-1 pp.1-8 |
IT, ISEC, RCC, WBS |
2022-03-10 11:10 |
Online |
Online |
A Study on Initial Acquisition of WHCDM Signals with Roll-Off Pulse Shaping Ojiro Komatsu, Toshiharu Kojima (UEC) IT2021-96 ISEC2021-61 WBS2021-64 RCC2021-71 |
WHCDM (Walsh-Hadamard Code Division Multiplexing) is suitable for helicopter satellite communications, where rotor blade... [more] |
IT2021-96 ISEC2021-61 WBS2021-64 RCC2021-71 pp.84-88 |
IT, ISEC, RCC, WBS |
2022-03-10 11:35 |
Online |
Online |
An Initial Acquisition Scheme with Improved Carrier Frequency Offset Tolerance for MWHCDM Yota Yamamura, Toshiharu Kojima (UEC) IT2021-97 ISEC2021-62 WBS2021-65 RCC2021-72 |
MWHCDM (modified Walsh-Hadamard code division multiplexing) is suitable for helicopter satellite communications, where r... [more] |
IT2021-97 ISEC2021-62 WBS2021-65 RCC2021-72 pp.89-94 |
VLD, HWS (Joint) |
2018-02-28 10:20 |
Okinawa |
Okinawa Seinen Kaikan |
k-Nearest Neighbor Search Hardware Using Locality Sensitive Hashing for High-Dimensional Data Yuto Arai, Shin'ichi Wakabayashi, Shinobu Nagayama, Masato Inagi (Hiroshima City Univ.) VLD2017-91 |
Recently, k-nearest neighbor search is frequently used in the field of pattern recognition, clustering,etc.
However, f... [more] |
VLD2017-91 pp.13-18 |
SAT, SANE (Joint) |
2018-02-22 12:30 |
Yamaguchi |
The Yamaguchi Chamber of Commerce and Industry |
A Simplified Initial Acquisition Scheme for WHCDM Based on Distribution Asymmetry of Demultiplexed Signal Energy Yuki Nagashima, Toshiharu Kojima (UEC) SAT2017-59 |
In helicopter satellite communications, the periodic channel blockage due to rotor blades is the most important problem ... [more] |
SAT2017-59 pp.19-24 |
MW, EMCJ, EST, IEE-EMC [detail] |
2017-10-20 16:00 |
Akita |
Yupopo |
Effect of Front-end Characteristics on Sidelobe of Pulse MIMO Radar Using Complex Sequence with Low Sidelobe Aperiodic Correlation Takashi Shiba, Masato Watanabe, Manabu Akita, Takayuki Inaba (UEC) EMCJ2017-56 MW2017-108 EST2017-71 |
MIMO method of periodic pulse type radar using complex sequence with low sidelobe aperiodic correlation as 1st modulatio... [more] |
EMCJ2017-56 MW2017-108 EST2017-71 pp.161-166 |
SANE |
2016-01-21 16:20 |
Nagasaki |
Nagasaki Prefectural Art Museum |
Multiplexing of Antenna Signal Using Perfect Periodic Code for PC-HPRF Radar. Takashi Shiba, Masato Watanabe, Masahiro Ishii, Manabu Akita, Takayuki Inaba (UEC) SANE2015-91 |
MIMO (Multi Input Multi Output) methods of PC-HPRF(Phase Coded High Pulse Repetition Frequency) radar have been studied.... [more] |
SANE2015-91 pp.53-58 |
SANE |
2015-10-30 16:00 |
Osaka |
OIT UMEKITA Knowledge Center |
Complex Sequence with Low Sidelobe Aperiodic Correlation for Code Division Multiple PC-HPRF Radar. Takashi Shiba, Masato Watanabe, Masahiro Ishii, Manabu Akita, Takayuki Inaba (UEC) SANE2015-48 |
MIMO (Multi Input Multi Output) method of PC-HPRF(Phase Coded High Pulse Repetition Frequency) radar
have been studied.... [more] |
SANE2015-48 pp.37-42 |
OCS |
2015-07-30 11:25 |
Tokyo |
Tokyo Tech Front |
Experimental Demonstration and Evaluation of Signal Performance Improvement by Walsh-Hadamard Transform for Super-Channel beyond 100Gbps Akira Masuda, Kohki Shibahara, Shingo Kawai, Mitsunori Fukutoku (NTT) OCS2015-29 |
Super-channel transmission is a promising technique to increase a channel capacity in next generation optical transport ... [more] |
OCS2015-29 pp.25-29 |
NS, IN (Joint) |
2014-03-07 14:50 |
Miyazaki |
Miyazaki Seagia |
Implementation and Evaluation of Selective Compressed Sensing for Micro-Controller Haruki Kawakami, Yoshihiro Kawahara (The Univ. of Tokyo), Masami Kishiro, Shingo Nakamura, Takahiro Kudo (Fuji Electric), Tohru Asami (The Univ. of Tokyo) IN2013-197 |
Assuming the change in the eigenfrequency is used for the bridge
structure diagnosis by wireless accelerometers, we hav... [more] |
IN2013-197 pp.315-320 |
ASN, MoNA (Joint) |
2014-01-24 15:50 |
Ehime |
Hotel Okudogo (Matsuyama) |
Selective Compressed Sensing Method for Low Power Highway Bridge Monitoring Haruki Kawakami, Yoshihiro Kawahara (Univ. of Tokyo), Masami Kishiro, Takahiro Kudo (Fuji Electric), Tohru Asami (Univ. of Tokyo) ASN2013-159 |
Assuming the change in the eigenfrequency is used for the bridge
structure diagnosis by wireless accelerometers, two da... [more] |
ASN2013-159 pp.231-236 |
SIP, CAS, MSS, VLD |
2013-07-12 16:20 |
Kumamoto |
Kumamoto Univ. |
A Study on SIK Optical CDMA Communications Using Orthogonal Binary Sequence Shinsuke Murakami, Akio Tsuneda (Kumamoto Univ.) CAS2013-35 VLD2013-45 SIP2013-65 MSS2013-35 |
The SIK (sequence inversion keyed) CDMA system has been proposed as one of optical CDMA (code division multiple access) ... [more] |
CAS2013-35 VLD2013-45 SIP2013-65 MSS2013-35 pp.195-199 |
SIP, RCS |
2013-01-31 10:45 |
Hiroshima |
Viewport-Kure-Hotel (Kure) |
A study on a FPGA implementation of real time foreground segmentation Tomohito Kajimoto, Ryo Yagi, Takao Nishitani (Tokyo Metropolitan Univ.) SIP2012-83 RCS2012-240 |
A prototype processor based on the multi-resolution GMM Foreground Segmentation algorithm by using Walsh Transform domai... [more] |
SIP2012-83 RCS2012-240 pp.13-18 |
AP, RCS (Joint) |
2012-11-16 09:30 |
Tokyo |
Tokyo Denki University |
An efficient channel estimation scheme without feedback in bi-directional two-timeslot OFDM relay systems Yuta Koshimizu, Eiji Okamoto (Nagoya Inst. Tech.) RCS2012-172 |
In this paper, we propose an efficient channel estimation scheme without feedback from relay in bi-directional two-times... [more] |
RCS2012-172 pp.67-72 |