Kiyoshi KOBAYASHI


Evaluations for Estimation Method of the Distributed Array Antenna (DAA) Radiation Pattern by Experimental Analysis
Daisuke GOTO Fumihiro YAMASHITA Kouhei SUZAKI Hideya SO Yoshinori SUZUKI Kiyoshi KOBAYASHI Naoki KITA 
Publication:   
Publication Date: 2018/06/01
Vol. E101-B  No. 6  pp. 1494-1502
Type of Manuscript:  PAPER
Category: Satellite Communications
Keyword: 
the distributed array antenna (DAA)array patternarray factorantenna pattern estimationantenna pattern measurement
 Summary | Full Text:PDF

Undesired Radiation Suppression Technique for Distributed Array Antenna by Antenna Positioning and Delay Signal Processing
Kouhei SUZUKI Hideya SO Daisuke GOTO Yoshinori SUZUKI Fumihiro YAMASHITA Katsuya NAKAHIRA Kiyoshi KOBAYASHI Takatoshi SUGIYAMA 
Publication:   
Publication Date: 2017/10/01
Vol. E100-B  No. 10  pp. 1959-1967
Type of Manuscript:  PAPER
Category: Satellite Communications
Keyword: 
distributed array antenna (DAA)undesired radiation suppressiondelay compensationsatellite communication
 Summary | Full Text:PDF

A Theoretical Analysis of a Circular Microstrip Antenna in a Parallel-Plate Waveguide
Narihiro NAKAMOTO Tomohiro OKA Shoichi KITAZAWA Hiroshi BAN Kiyoshi KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/01/01
Vol. E96-B  No. 1  pp. 173-181
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
circular microstrip antennaparallel-plate waveguideinput impedanceresonant frequencysurface admittance
 Summary | Full Text:PDF

Novel Polarization-Tracking-Free Mobile Satellite Communication Systems and On-Ground Polarization-Forming Technique
Yoshinori SUZUKI Takatoshi SUGIYAMA Kiyoshi KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/11/01
Vol. E95-B  No. 11  pp. 3412-3419
Type of Manuscript:  Special Section PAPER (Special Section on Satellite Communication Technologies in Conjunction with Main Topics of JC-SAT2011)
Category: 
Keyword: 
communication satelliteearth stationand polarization forming
 Summary | Full Text:PDF

Direct Spectrum Division Transmission for Highly Efficient Frequency Utilization in Satellite Communications
Jun-ichi ABE Fumihiro YAMASHITA Katsuya NAKAHIRA Kiyoshi KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/02/01
Vol. E95-B  No. 2  pp. 563-571
Type of Manuscript:  PAPER
Category: Satellite Communications
Keyword: 
satellite communicationsfilter bankdirect spectrum division transmissionspectrum editing technique
 Summary | Full Text:PDF

Digitally-Controlled Polarization-Forming Transmitting Antenna for Mobile Satellite Communication Systems
Yoshinori SUZUKI Kiyoshi KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/06/01
Vol. E94-B  No. 6  pp. 1707-1715
Type of Manuscript:  PAPER
Category: Satellite Communications
Keyword: 
electrically polarization formingtransmitting antennamobile satellite communication systems
 Summary | Full Text:PDF

Frequency Asynchronous Cross-Polarization Interference Canceller for Variable Polarization Frequency Division Multiplexing (VPFDM)
Fumihiro YAMASHITA Junichi ABE Kiyoshi KOBAYASHI Hiroshi KAZAMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/11/01
Vol. E92-B  No. 11  pp. 3365-3374
Type of Manuscript:  Special Section PAPER (Special Section on Satellite Communication Technologies in Conjunction with Main Topics of JC-SAT2008)
Category: 
Keyword: 
satellite communicationscross-polarizationfrequency offsetinterference canceller
 Summary | Full Text:PDF

A Prototype Modem for Hyper-Multipoint Data Gathering SATCOM Systems --- A Group Modem Applicable to Arbitrarily and Dynamically Assigned FDMA Signals ---
Kiyoshi KOBAYASHI Fumihiro YAMASHITA Jun-ichi ABE Masazumi UEBA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/11/01
Vol. E92-B  No. 11  pp. 3318-3325
Type of Manuscript:  Special Section PAPER (Special Section on Satellite Communication Technologies in Conjunction with Main Topics of JC-SAT2008)
Category: 
Keyword: 
FFT filter bankgroup modemhyper-multipoint data gatheringarbitrary and dynamic frequency assignmentsatellite communication
 Summary | Full Text:PDF

Recent Japanese R&D in Satellite Communications
Masahiro UMEHIRA Kiyoshi KOBAYASHI Yoshitsugu YASUI Masato TANAKA Ryutaro SUZUKI Hideyuki SHINONAGA Nobuyuki KAWAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/11/01
Vol. E92-B  No. 11  pp. 3290-3299
Type of Manuscript:  INVITED PAPER (Special Section on Satellite Communication Technologies in Conjunction with Main Topics of JC-SAT2008)
Category: 
Keyword: 
satellite communicationsR&DJapan
 Summary | Full Text:PDF

A Highly Efficient and Flexible Channel Allocation Scheme for Hyper Multi-Point Data Gathering Satellite Communication Systems
Katsuya NAKAHIRA Kiyoshi KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/11/01
Vol. E92-B  No. 11  pp. 3309-3317
Type of Manuscript:  Special Section PAPER (Special Section on Satellite Communication Technologies in Conjunction with Main Topics of JC-SAT2008)
Category: 
Keyword: 
satellite communicationchannel allocationsensor networkdata gathering
 Summary | Full Text:PDF

Deformed Antenna Pattern Compensation Technique for Multi-Beam Antennas in Broadband and Scalable Mobile Communications Satellites
Yoshinori SUZUKI Satoshi HARADA Kiyoshi KOBAYASHI Masazumi UEBA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/09/01
Vol. E90-B  No. 9  pp. 2280-2287
Type of Manuscript:  Special Section PAPER (Special Section on 2006 International Symposium on Antennas and Propagation)
Category: Antennas
Keyword: 
communication satelliteonboard antennamulti-beamphased array
 Summary | Full Text:PDF

Communication Capacity and Quality Enhancement Using a Two-Layered Adaptive Resource Allocation Scheme for Multi-Beam Mobile Satellite Communication Systems
Katsuya NAKAHIRA Kiyoshi KOBAYASHI Masazumi UEBA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/07/01
Vol. E89-A  No. 7  pp. 1930-1939
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
mobile satellite communicationmulti beamresource allocationcapacity enhancementQoSoptimization
 Summary | Full Text:PDF

Seamless Symbol Rate Switching Scheme for Multi-Rate FDMA Modem
Fumihiro YAMASHITA Kiyoshi KOBAYASHI Kohei OHATA Masazumi UEBA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/02/01
Vol. E89-B  No. 2  pp. 545-555
Type of Manuscript:  PAPER
Category: Satellite Communication
Keyword: 
symbol ratesatellite communicationsseamless switchingmodem
 Summary | Full Text:PDF

Design and Performance Evaluation of IEEE 802.11a SDR Software Implemented on a Reconfigurable Processor
Kazunori AKABANE Hiroyuki SHIBA Munehiro MATSUI Kiyoshi KOBAYASHI Katsuhiko ARAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/11/01
Vol. E88-B  No. 11  pp. 4163-4169
Type of Manuscript:  Special Section PAPER (Special Section on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
software defined radioreconfigurable processorwireless LANIEEE 802.11a
 Summary | Full Text:PDF

Observation of Faraday Rotation and Magnetic Circular Dichroism in an Optical Near-Field Probe Coated with Fe
Tadashi KAWAZOE Shinya MARUYAMA Kiyoshi KOBAYASHI Motoichi OHTSU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/09/01
Vol. E88-C  No. 9  pp. 1850-1852
Type of Manuscript:  Special Section LETTER (Special Section on Nanophotonics and Related Techniques)
Category: 
Keyword: 
polarizationoptical near-fieldmagneto-optical effectoptical properties of magnetic materialsplasmon
 Summary | Full Text:PDF

Anti-Parallel Dipole Coupling of Quantum Dots via an Optical Near-Field Interaction
Tadashi KAWAZOE Kiyoshi KOBAYASHI Motoichi OHTSU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/09/01
Vol. E88-C  No. 9  pp. 1845-1849
Type of Manuscript:  Special Section PAPER (Special Section on Nanophotonics and Related Techniques)
Category: 
Keyword: 
optical near-field interactionanti-parallel electric dipole pairnear-field spectroscopycoupled quantum dots
 Summary | Full Text:PDF

Nanophotonic Computing Based on Optical Near-Field Interactions between Quantum Dots
Makoto NARUSE Tetsuya MIYAZAKI Tadashi KAWAZOE Suguru SANGU Kiyoshi KOBAYASHI Fumito KUBOTA Motoichi OHTSU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/09/01
Vol. E88-C  No. 9  pp. 1817-1823
Type of Manuscript:  Special Section PAPER (Special Section on Nanophotonics and Related Techniques)
Category: 
Keyword: 
nanophotonicsoptical signal processingoptical near-fieldinformation processingnanophotonic computing
 Summary | Full Text:PDF

Nanophotonic Devices and Fundamental Functional Operations
Suguru SANGU Kiyoshi KOBAYASHI Motoichi OHTSU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/09/01
Vol. E88-C  No. 9  pp. 1824-1831
Type of Manuscript:  Special Section PAPER (Special Section on Nanophotonics and Related Techniques)
Category: 
Keyword: 
nanophotonicsquantum stateslogic gatesphoton storagequantum information processing
 Summary | Full Text:PDF

Spreading Code Assignment for Multicarrier CDMA System over Frequency-Selective Fading Channels
Takashi SHONO Tomoyuki YAMADA Kiyoshi KOBAYASHI Katsuhiko ARAKI Iwao SASASE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/12/01
Vol. E87-B  No. 12  pp. 3734-3746
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
multicarrier code division multiple access (MC-CDMA)inter-code interference (ICI)spreading code assignmentequal gain combining (EGC)orthogonality restoring combining (ORC)maximum ratio combining (MRC)broadband mobile communications
 Summary | Full Text:PDF

Enhanced Multi-Correlator AFC for Fast and Wide Range Frequency Acquisition
Fumihiro YAMASHITA Kiyoshi KOBAYASHI Yoshinori NAKASUGA Jin MITSUGI Masazumi UEBA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/08/01
Vol. E87-B  No. 8  pp. 2072-2081
Type of Manuscript:  Special Section PAPER (Special Section on Recent Fundamental Technologies for Broadband Satellite Communications)
Category: 
Keyword: 
AFCcorrelatorssatellite communicationslarge acquisition range
 Summary | Full Text:PDF

Inter-Code Interference and Optimum Spreading Sequence in Frequency-Selective Rayleigh Fading Channels on Uplink MC-CDMA
Takashi SHONO Tomoyuki YAMADA Kiyoshi KOBAYASHI Katsuhiko ARAKI Iwao SASASE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/08/01
Vol. E87-A  No. 8  pp. 1981-1993
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: Signal Processing for Communications
Keyword: 
MC-CDMAOFDMinter-code interferencedesired-to-undesired signal power ratiospreading sequence
 Summary | Full Text:PDF

Low C/N Spread Spectrum Modem for Random Access Satellite Communications
Kiyoshi KOBAYASHI Hiroshi KAZAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/12/25
Vol. E82-A  No. 12  pp. 2743-2750
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
spread spectrumrandom accessmodemcode synchronizationpilot signal transmissionsatellite communication
 Summary | Full Text:PDF

A Novel Coherent Preambleless Demodulator Employing Sequential Processing for PSK Packet Signals--AFC and Carrier Recovery Circuits--
Takeshi ONIZAWA Kiyoshi KOBAYASHI Masahiro MORIKURA Toshiaki TANAKA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1999/03/25
Vol. E82-B  No. 3  pp. 542-550
Type of Manuscript:  PAPER
Category: Mobile Communication
Keyword: 
packetAFCpreamblelessphase signalssequentialcarrier recoverysample hold
 Summary | Full Text:PDF

High Capacity and Wide Coverage Cell Station for Personal Communication Systems
Kiyoshi KOBAYASHI Tomoaki KUMAGAI Shuji KUBOTA Shigeaki OGOSE Takeshi HATTORI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1999/01/25
Vol. E82-B  No. 1  pp. 112-119
Type of Manuscript:  PAPER
Category: Communication Systems and Transmission Equipment
Keyword: 
personal communicationcell stationdiversitycoherent detectionburst-by-burst AFC
 Summary | Full Text:PDF

Bit-Stream-Arranged Weighted Modulation Scheme for Low Delay Spread Frequency Selective Fading Channels
Kiyoshi KOBAYASHI Shuji KUBOTA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/07/25
Vol. E81-A  No. 7  pp. 1452-1458
Type of Manuscript:  Special Section PAPER (Special Section on Fundamentals of Multi-dimensional Mobile Information Network)
Category: 
Keyword: 
weighted modulationfrequency selective fadingmicro-cell systemADPCMPCM
 Summary | Full Text:PDF

Bit Significance Selective Frequency Diversity Transmission
Tomoaki KUMAGAI Kiyoshi KOBAYASHI Katsuhiko KAWAZOE Shuji KUBOTA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/03/25
Vol. E81-B  No. 3  pp. 545-552
Type of Manuscript:  PAPER
Category: Communication Theory
Keyword: 
frequency diversityspectrum efficiencyfadingADPCM
 Summary | Full Text:PDF

Fully Digital Burst Modem for Satellite Multimedia Communication Systems
Kiyoshi KOBAYASHI Tetsu SAKATA Yoichi MATSUMOTO Shuji KUBOTA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/01/25
Vol. E80-B  No. 1  pp. 8-15
Type of Manuscript:  Special Section PAPER (Special Issue on Advances in Satellite Communications toward Multimedia Era)
Category: Modem and Coding
Keyword: 
digital burst modemTDMAsatellite communicationVLSIC
 Summary | Full Text:PDF

VLSI Implemented 60 Mb/s QPSK/OQPSK Burst Digital Demodulator for Radio Application
Yoichi MATSUMOTO Kiyoshi KOBAYASHI Tetsu SAKATA Kazuhiko SEKI Shuji KUBOTA Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1994/12/25
Vol. E77-C  No. 12  pp. 1873-1880
Type of Manuscript:  Special Section PAPER (Special Issue on Multimedia, Analog and Processing LSIs)
Category: Multimedia System LSIs
Keyword: 
demodulatorcarrier recoverybit-timing recoveryVLSITDMA
 Summary | Full Text:PDF

A Group Demodulator Employing Multi-Symbol Chirp Fourier Transform
Kiyoshi KOBAYASHI Tomoaki KUMAGAI Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/07/25
Vol. E77-B  No. 7  pp. 905-910
Type of Manuscript:  Special Section PAPER (Special Issue on Personal, Indoor and Mobile Radio Communications)
Category: 
Keyword: 
communication terminal and equipmentgroup demodulatorFDM-TDM conversionchirp Fourier transformpersonal communication
 Summary | Full Text:PDF