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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| PRMU | 2022-10-21 10:45 |
Tokyo | Miraikan - The National Museum of Emerging Science and Innovation (Primary: On-site, Secondary: Online) |
Subspace based Anomaly Detection Takumi Kanai, Naoya Sogi (Univ. Tsukuba), Atsuto Maki (KTH), Kazuhiro Fukui (Univ. Tsukuba)  PRMU2022-25 |
In this paper, we propose a change point detection method in time series data by incorporating the concept of difference... [more] | PRMU2022-25 pp.18-23 |
| EA, US, SP, SIP, IPSJ-SLP [detail] | 2021-03-03 10:50 |
Online | Online | Design of Graph Signal Sampling Matrices for Arbitrary Signal Subspaces Junya Hara, Koki Yamada (TUAT), Shunsuke Ono (TIT), Yuichi Tanaka (TUAT) EA2020-61 SIP2020-92 SP2020-26 |
We propose a design method of sampling matrices for graph signals that guarantees perfect recovery for arbitrary graph s... [more] | EA2020-61 SIP2020-92 SP2020-26 pp.9-14 |
| WIT, SP | 2019-10-27 09:00 |
Kagoshima | Daiichi Institute of Technology | Extraction of linguistic representation and syllable recognition from EEG signal of speech-imagery Kentaro Fukai, Hidefumi Ohmura, Kouichi Katsurada (Tokyo Univ. of Science), Satoka Hirata, Yurie Iribe (Aichi Prefectural Univ.), Mingchua Fu, Ryo Taguchi (Nagoya Inst. of Technology), Tsuneo Nitta (Waseda Univ./Toyohashi Univ. of Technology) SP2019-28 WIT2019-27 |
Speech imagery recognition from Electroencephalogram (EEG) is one of the challenging technologies for non-invasive brain... [more] | SP2019-28 WIT2019-27 pp.63-68 |
| RCS, SAT (Joint) |
2015-08-17 10:20 |
Fukuoka | Fukuoka Univ. | DOA Estimation for Wideband Signals by Using Weighted Squared-TOPS Hirotaka Hayashi, Tomoaki Ohtsuki (Keio Univ.) RCS2015-134 |
Recently, direction-of-arrival (DOA) estimation for wideband incoming waves has been received attention with the progres... [more] | RCS2015-134 pp.13-18 |
| SIP, EA, SP | 2015-03-03 10:45 |
Okinawa | [Poster Presentation]
Multimodal source number estimation in multi-party conversations Yukoh Wakabayashi, Masato Nakayama, Takanobu Nishiura, Yoichi Yamashita (Ritsumeikan Univ.) EA2014-120 SIP2014-161 SP2014-183 |
Source number plays an important role in blind source separation (BSS) and sound source localization (SSL) based on subs... [more] | EA2014-120 SIP2014-161 SP2014-183 pp.267-272 |
|
| MW (Workshop) |
2012-08-08 - 2012-08-10 |
Overseas | Chulalongkorn University, Bangkok, Thailand | Improving Interference Immunity of Spatial Event Detection System Using Short Range Wireless System Hiroyuki Tsuji (NICT), Yoshihiro Hase, Makoto Suzuki (The University of Tokyo) |
This paper proposes a new technique for improving the co-channel interference immunity of the event detection system whi... [more] | |
| MW (Workshop) |
2011-08-10 - 2011-08-12 |
Overseas | KMITL, Ladkrabang, Thailand | Development of Spatial Event Detection System Using Signal Subspace of Array Antenna and Interference Reduction Technique Hiroyuki Tsuji (NICT) |
This paper presents a development of event detection system such as for intruders and human motion, and also proposes a ... [more] | |
| AP, SAT (Joint) |
2011-07-15 13:50 |
Nagano | Fac. Eng., Shinshu Univ. | Performance Evaluation of Environment Change Detection method Using MIMO Sensor Ken Ogawa, Hiroyoshi Yamada, Yuta Kurosaki, Yoshio Yamaguchi (Niigata Univ) AP2011-43 |
Recently, several indoor intrusion/event detection methods using radio propagation change have been proposed. One of the... [more] | AP2011-43 pp.91-95 |
| AP | 2011-01-20 10:55 |
Saga | Saga Univ. | Experimental Study on Indoor Intrusion Detection with Asynchronous Distributed Transmitters Kei Tanaka, Yuta Kurosaki, Hiroyoshi Yamada, Kentaro Nishimori, Yoshio Yamaguchi (Niigata Univ.) AP2010-137 |
In recent years, several indoor intrusion/event detection methods using radio propagation change caused by intruder have... [more] | AP2010-137 pp.25-30 |
| CAS | 2010-01-28 13:00 |
Kyoto | Kyoudai-Kaikan Bldg. | A Study on Adjustment Method to Noise Spectral Shape for Sub-Band Subspace Approach Suguru Imai, Atsushi Nakagaki, Koji Shibata (Kitami Inst. of Tech.) CAS2009-64 |
An adjustment method of sub-band separation is proposed for enhancement of speech degraded by colored noises. A signal s... [more] | CAS2009-64 pp.1-6 |
| ITS, WBS (Joint) |
2009-12-08 10:50 |
Kumamoto | Kumamoto University | Composition of Blind Type Adaptive Filter Based on Signal Subspace for DS/CDMA Systems with Antenna Array Tomokazu Takahashi (Hosei Univ.), Tsuyoshi Ichikawa (Tokyo Metro. Police Info-Com. Dep.), Kohei Otake (Hosei Univ.) WBS2009-36 |
In DS/CDMA communication systems, to improve the transmission efficiency, a blind or non-pilot-aided adaptive MMSE recei... [more] | WBS2009-36 pp.1-6 |
| RCS, AP (Joint) |
2009-11-26 11:30 |
Tokyo | Tokyo Inst. of Tech. | Resolution Improvement of Wideband Direction-Of-Arrival Estimation ``Squared-TOPS" by Signal Subspace Projection Kazuki Okane, Tomoaki Ohtsuki (Keio Univ.) RCS2009-140 |
In this report, a new direction-of-arrival (DOA) estimation method for wideband signals is introduced. This new method u... [more] | RCS2009-140 pp.43-48 |
| SIP, CAS, VLD | 2009-07-01 16:20 |
Hokkaido | Kushiko-shi Shogai Gakushu Center | A Study on Initial Value Setting Method for Multiple Sound Sources Tracking Noboru Oowada, Kenji Suyama (Tokyo Denki Univ.) CAS2009-9 VLD2009-14 SIP2009-26 |
In this paper, we study a method for a fast tracking of two talkers using a microphone array based on the successive al... [more] |
CAS2009-9 VLD2009-14 SIP2009-26 pp.43-48 |
| RCS | 2009-06-25 15:20 |
Aichi | Nagoya University | Wideband DOA Estimation Based on ``TOPS" Kazuki Okane, Shohei Ikeda, Tomoaki Ohtsuki (Keio Univ.) RCS2009-33 |
In this report, a new direction-of-arrival (DOA) estimation method for wideband signals is introduced. This new method i... [more] | RCS2009-33 pp.31-35 |
| AP | 2009-05-22 15:20 |
Kumamoto | Kumamoto Univ. | Estimation of indoor radio terminal location using approximate signal subspace Yuta Kurosaki, Hiroyoshi Yamada, Yoshio Yamaguchi (Niigata Univ.) AP2009-35 |
In recent years, methods of mobile location estimation in urban and indoor environment using array antenna have been att... [more] | AP2009-35 pp.141-146 |
| AP | 2009-05-22 15:45 |
Kumamoto | Kumamoto Univ. | Performance Improvement for Near-Field and Narrow-Band Source Localization Using Coherent Signal-Subspace Processing Ken-ichi Koga (Tokai Rika/Nagoya Inst. of Tech.), Nobuyoshi Kikuma, Hiroshi Hirayama, Kunio Sakakibara (Nagoya Inst. of Tech.), Daisuke Kawamura, Hiroaki Iwashita, Yoshiyuki Mizuno (Tokai Rika) AP2009-36 |
It is known that the Coherent Signal-Subspace (CSS) preprocessing provides high estimation accuracy, when utilizing an e... [more] | AP2009-36 pp.147-152 |
| RCS, AN, MoNA, SR (Joint) |
2009-03-06 10:55 |
Kanagawa | YRP | Signal-Subspace-Partition Event Filtering for Eigenvector-Based Security System Using Radio Waves Shohei Ikeda, Tomoaki Ohtsuki (Keio Univ.), Hiroyuki Tsuji (NICT) RCS2008-274 |
The indoor event detection system with signal subspace spanned by eigenvector for office or home security is reported. T... [more] | RCS2008-274 pp.367-372 |
| AP, RCS (Joint) |
2008-11-21 10:10 |
Ishikawa | Kanazawa Institute of Technology | Blind Type Adaptive Reduced-Rank Filter Based on Signal Subspace for DS/CDMA Systems with Antenna Array Tomokazu Takahashi, Tsuyoshi Ichikawa, Kohei Otake (Hosei Univ.) RCS2008-147 |
In DS/CDMA communication systems, to improve the transmission efficiency, a blind or non-pilot-aided adaptive MMSE recei... [more] | RCS2008-147 pp.101-106 |
| VLD, CAS, SIP | 2008-06-27 13:50 |
Hokkaido | Hokkaido Univ. | Avoidance of Numerical Unstability in Exact Unconditional ML Estimation of DOA Haihua Chen, Masakiyo Suzuki (Kitami Inst. of Tech.) CAS2008-29 VLD2008-42 SIP2008-63 |
This paper addresses the issue of numerical unstability in Unconditional Maximum Likelihood (UML) estimation of Di... [more] |
CAS2008-29 VLD2008-42 SIP2008-63 pp.61-66 |
| RCS, AN, MoNA, SR, WBS (Joint) |
2008-03-06 11:40 |
Kanagawa | YRP | Event Detection System Based on Space-Time Signal Processing for LOS Environments Shohei Ikeda, Tomoaki Ohtsuki (Keio Univ.), Hiroyuki Tsuji (NICT) RCS2007-217 |
We have proposed the indoor event detection system with eigenvector spanning signal subspace for office or home security... [more] | RCS2007-217 pp.187-192 |
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