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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SANE | 2023-12-08 10:50 |
Overseas | Surakarta, Indonesia (Primary: On-site, Secondary: Online) |
Novel Evaluation Method for Radio Anechoic Chambers Based on MIMO Radar Image Yousuke Aoi (SOGO), Hirokazu Kobayashi (Electromagnetic Wave System), Bryan Chih-Yuan Chu (Ohmplus Tech.)  SANE2023-75 |
The radio anechoic chamber is an isolated space, cut off from the outside world, and is an essential measurement space f... [more] | SANE2023-75 pp.83-88 |
| MW, AP (Joint) |
2023-09-28 13:00 |
Kochi | Kochi Castle Museum of History (Primary: On-site, Secondary: Online) |
[Invited Talk]
Spatial mode conversion and mode distribution measurement of light wave with orbital angular momentum Hirokazu Kobayashi (Kochi Univ. of Tech.) MW2023-82 |
In this study, we introduce spatial mode conversion and mode distribution measurement method for optical vortex beams ha... [more] | MW2023-82 pp.11-14 |
| SANE | 2023-08-18 13:00 |
Hokkaido | (Primary: On-site, Secondary: Online) |
Analysis of Radar Cross-Section for Chaff Cloud Consisting of Rectangular Metal Piece etc. Hirokazu Kobayashi (Electromagnetic Wave System Lab.), Yousuke Aoi, Hirohisa Oda (SOGO) SANE2023-40 |
Traditionally, many chaff clouds use long and thin aluminum rectangular pieces. The volume of the cloud is electrically ... [more] | SANE2023-40 pp.35-40 |
| SANE | 2023-05-23 15:40 |
Kanagawa | Information Technology R & D Center, MITSUBISHI Electric Corp. (Primary: On-site, Secondary: Online) |
Radar Cross-Section of Point Source Groups Envisaging Chaff Clouds Using Near-Field to Far-Field Transformation Hirokazu Kobayashi (Electromagnetic Wave System Lab.), Yousuke Aoi, Hirohisa Oda (SOGO) SANE2023-13 |
A theoretical study for the radar cross sections (RCS) of chaff clouds is discussed using a software code that incorpora... [more] | SANE2023-13 pp.72-77 |
| SANE | 2022-12-16 09:35 |
Nagasaki | Nagasaki Public Hall (Primary: On-site, Secondary: Online) |
Radar Target Modeling by Employing Directional Point Source Hirokazu Kobayashi (Electromagnetic Wave System Lab.), Hirohisa Oda (SOGO) SANE2022-76 |
Electromagnetic scattering analysis using the point source is the most useful and simple method to evaluate radar perfor... [more] | SANE2022-76 pp.68-73 |
| QIT (2nd) |
2022-12-08 14:00 |
Kanagawa | Keio Univ. (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Two-photon phase singularity manifested by propagational distance control of photon pair generated by higher-order LG pump beam Takumi Jinushi, Hirokazu Kobayashi (KUT) |
We report our finding that a phase singularity in two-photon wave function is manifested at the center of the optical ax... [more] | |
| SANE | 2022-08-18 15:30 |
Hokkaido | (Primary: On-site, Secondary: Online) |
A Study for Radar Clutter through Point Source Model Hirokazu Kobayashi (Electromagnetic Wave System Lab.), Hirohisa Oda (SOGO) SANE2022-38 |
Radar clutter is defined as unwanted backscatter signals generated from objects in the natural environment such as groun... [more] | SANE2022-38 pp.26-31 |
| SANE | 2022-08-18 15:55 |
Hokkaido | (Primary: On-site, Secondary: Online) |
A Study on Scattering Model through Point Source with Directivity Shunichi Takaoka (JRC), Hirokazu Kobayashi (Electromagnetic Wave System Lab.) SANE2022-39 |
[more] | SANE2022-39 pp.32-37 |
| SANE | 2022-05-24 16:25 |
Kanagawa | Information Technology R & D Center, MITSUBISHI Electric Corp. (Primary: On-site, Secondary: Online) |
Antenna Pattern of Monopulse Radar Approximated by Gaussian Beam Hirokazu Kobayashi (Electromagnetic Wave System Lab.), Shigeo Kazama (Sogo Electronics) SANE2022-13 |
The monopulse method is used for high-speed tracking radar which obtains an error signal of the spatial angle from the r... [more] | SANE2022-13 pp.67-72 |
| SANE | 2021-11-12 10:10 |
Online | Online | [Invited Talk]
Applications of Electromagnetic Array-Factor for Radar Engineering Hirokazu Kobayashi (Electromagnetic Wave System Lab.) SANE2021-54 |
Array-factor (AF) theory is the widely and commonly method used to calculate and design array antenna pattern. Assuming ... [more] | SANE2021-54 pp.114-123 |
| SANE | 2021-08-26 14:00 |
Online | Online | A Consideration for Virtual Array in MIMO Radar Hirokazu Kobayashi (Electromagnetic Wave System Lab.) SANE2021-22 |
Multiple-input multiple-output (MIMO) radar that employs multiple antennas to transmit orthogonal waveforms and multiple... [more] | SANE2021-22 pp.1-6 |
| PN, NS, OCS (Joint) |
2021-06-24 14:00 |
Online | Online | [Invited Talk]
Mode multiplier of photonic orbital angular momentum via spatial light modulator Hirokazu Kobayashi, Katsushi Iwashita (Kochi Univ. Tech.) NS2021-26 OCS2021-2 PN2021-8 |
The objective of our research is to realize integer multiplier for the light orbital angular momentum (OAM) with high ef... [more] | NS2021-26 OCS2021-2 PN2021-8 pp.9-13(NS), pp.9-13(OCS), pp.27-31(PN) |
| SANE | 2021-05-13 11:30 |
Online | Online | [Invited Talk]
RCS Evaluation by Electromagnetic Near-field to Far-field Transformation Hirokazu Kobayashi (EM System Lab) SANE2021-4 |
In this paper, we discuss the near-field to far-field transformation (NFFFT) theory for radar cross-section (RCS) of an ... [more] | SANE2021-4 pp.15-26 |
| WBS, IT, ISEC | 2021-03-05 09:00 |
Online | Online | Relationships among Security Notions and Lower Bounds on Tags in Anonymous Broadcast Authentication Hirokazu Kobayashi (Yokohama National Univ..), Yohei Watanabe (The Univ. of Electro-Communications/AIST), Junji Shikata (Yokohama National Univ..) IT2020-143 ISEC2020-73 WBS2020-62 |
Watanabe et al. (SCIS2021) proposed Anonymous Broadcast Authentication (ABA) as a cryptographic primitive for remote con... [more] | IT2020-143 ISEC2020-73 WBS2020-62 pp.187-194 |
| QIT (2nd) |
2020-12-10 11:50 |
Online | Online | Direct measurement of ultrafast wave function of photons in the time domain Kazuhisa Ogawa, Takumi Okazaki (Hokkaido Univ.), Hirokazu Kobayashi (Kochi Univ. Tech.), Toshihiro Nakanishi (Kyoto Univ.), Akihisa Tomita (Hokkaido Univ.) |
The information encoding in the temporal mode of photons is important in quantum information processing in terms of larg... [more] | |
| QIT (2nd) |
2020-12-11 17:50 |
Online | Online | Formulation and experimental demonstration of complex variance of observables in pre- and post-selected systems Natsuki Abe, Kazuhisa Ogawa (Hokkaido Univ.), Hirokazu Kobayashi (Kochi Univ. of Tech.), Akihisa Tomita (Hokkaido Univ.) |
In pre- and post-selected systems, information of observables can be obtained as weak values. Weak values in pre- and po... [more] | |
| SANE | 2019-11-29 10:25 |
Osaka | OIT UMEDA Campus | Radar Image Application and Pattern Measurement of Attached Antenna in 24GHz FMCW Radar Masahiro Shibata (OIT), Shun-ichi Takaoka (NTUT), Hirokazu Kobayashi, Kazuo Kumamoto (OIT) SANE2019-77 |
When a metal object is measured through a dielectric with a wall penetrating radar, the speed of the dielectric object i... [more] | SANE2019-77 pp.41-44 |
| SANE | 2019-11-29 11:15 |
Osaka | OIT UMEDA Campus | RCS Calibration for Near-Field to Far-Field Transformation Shun-ichi Takaoka (NTUT), Hirokazu Kobayashi (OIT), Yang-Lang Chang, Chih-Yuen Chu (NTUT) SANE2019-79 |
The imaged based Near-Field to Far-Field Transformation(NFFFT) method for RCS measurement enables to evaluate Far-field ... [more] | SANE2019-79 pp.49-53 |
| SANE | 2019-01-24 13:00 |
Nagasaki | Nagasaki Prefectural Art Museum | On Effect of Multiple Reflection in Near-field to Far-field Transformation Hirokazu Kobayashi, Yuki Kameda, Jin Nakamura (OIT), Shun-ich Takaoka, Yang-Lang Chang, Chih-Yuen Chu (NTUT) SANE2018-90 |
The radar cross-section (RCS) estimation for an electrically large object employs the different method from the traditio... [more] | SANE2018-90 pp.1-6 |
| QIT (2nd) |
2018-11-26 16:20 |
Tokyo | The University of Tokyo | Weak value measurement method without probes Kazuhisa Ogawa (Hokkaido Univ.), Hirokazu Kobayashi (Kochi Univ. of Tech.), Akihisa Tomita (Hokkaido Univ.) |
[more] | |
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