Yoshimasa DAIDO


Method of Determining Delay Dependence of the Memory Effect in Power Amplifiers and Derivation of Inverse to Cancel the Nonlinear Distortions
Eisuke FUKUDA Yasuyuki OISHI Takeshi TAKANO Daisuke TAKAGO Yoshimasa DAIDO Hiroyuki MORIKAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/03/01
Vol. E97-A  No. 3  pp. 749-758
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
power amplifierIMDLTImemory effectpredistortion
 Summary | Full Text:PDF(2MB)

Design of Predistorter with Efficient Updating Algorithm of Power Amplifier with Memory Effect
Yasuyuki OISHI Shigekazu KIMURA Eisuke FUKUDA Takeshi TAKANO Daisuke TAKAGO Yoshimasa DAIDO Kiyomichi ARAKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/03/01
Vol. E95-C  No. 3  pp. 382-394
Type of Manuscript:  PAPER
Category: Electronic Circuits
Keyword: 
power amplifierIMD measurementmemory effectbias impedancepredistorter
 Summary | Full Text:PDF(1.7MB)

Iterative Determination of Phase Reference in IMD Measurement to Characterize Nonlinear Behavior, and to Derive Inverse, for Power Amplifier with Memory Effect
Yasuyuki OISHI Shigekazu KIMURA Eisuke FUKUDA Takeshi TAKANO Yoshimasa DAIDO Kiyomichi ARAKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/10/01
Vol. E94-C  No. 10  pp. 1515-1523
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Active Devices and Circuits
Keyword: 
power amplifierIMD measurementmemory effectbias impedancepredistorter
 Summary | Full Text:PDF(1.5MB)

Efficient Method to Measure IMD of Power Amplifier with Simplified Phase Determination Procedure to Clarify Memory Effect Origins
Takeshi TAKANO Yasuyuki OHISHI Shigekazu KIMURA Michiharu NAKAMURA Kazuo NAGATANI Eisuke FUKUDA Yoshimasa DAIDO Kiyomichi ARAKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/07/01
Vol. E93-C  No. 7  pp. 991-999
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies)
Category: 
Keyword: 
power amplifierIMD measurementmemory effectbias impedanceeven order nonlinearity
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Phase Jitter Injection into Sub-Carriers for Peak Power Reduction of OFDM Signal without Side Information Transmission
Noboru IZUKA Yoshimasa DAIDO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/07/01
Vol. E89-B  No. 7  pp. 2092-2095
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
OFDMpartial transmit sequencesphase jitter
 Summary | Full Text:PDF(254.6KB)

Error Free Condition Attained by Down-Link Power Control for CDMA Fixed Wireless Access System: Measured ISI Level of Modem and Power Control Simulation
Noboru IZUKA Yoshimasa DAIDO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/01/01
Vol. E87-B  No. 1  pp. 56-67
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
code division multiple accesspower controlfixed wireless access systemquadrature amplitude modulationerror free condition
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Exact Analysis of Bit Error Probability for 4-State Soft Decision Viterbi Decoding
Hideki YOSHIKAWA Ikuo OKA Chikato FUJIWARA Yoshimasa DAIDO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/10/01
Vol. E85-A  No. 10  pp. 2263-2266
Type of Manuscript:  Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Coding Theory
Keyword: 
exact analysisbit error probabilitysoft decision Viterbi decoding
 Summary | Full Text:PDF(258KB)

Noise Performance of Second-Order Bidirectional Associative Memory
Yutaka KAWABATA Yoshimasa DAIDO Shimmi HATTORI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1999/05/25
Vol. E82-D  No. 5  pp. 993-998
Type of Manuscript:  PAPER
Category: Bio-Cybernetics and Neurocomputing
Keyword: 
BAMnoisecapacityerror probabilitycharacteristic function (CF)Hermite Gauss
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Capacity of Second-Order Bidirectional Associative Memory with Finite Neuron Numbers
Yutaka KAWABATA Yoshimasa DAIDO Kaname KOBAYASHI Shimmi HATTORI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/11/25
Vol. E80-A  No. 11  pp. 2318-2324
Type of Manuscript:  PAPER
Category: Neural Networks
Keyword: 
BAMcapacityerror probabilitycharacteristic functionHermite Gauss
 Summary | Full Text:PDF(493.1KB)

Power Efficient High-Level Modulation for High-Capacity Digital Radio Systems
Hiroshi NAKAMURA Yoshimasa DAIDO 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1989/05/25
Vol. E72-E  No. 5  pp. 633-640
Type of Manuscript:  PAPER
Category: Radio Communication
Keyword: 
 Summary | Full Text:PDF(572.4KB)

A New 90 MBPS 68 APSK Modem with Honeycomb Constellation for Digital Radio Relay Systems
Hiroshi NAKAMURA Noboru IIZUKA Eisuke FUKUDA Morihiko MINOWA Yoshimasa DAIDO Sadao TAKENAKA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1988/06/25
Vol. E71-E  No. 6  pp. 591-599
Type of Manuscript:  PAPER
Category: Radio Communication
Keyword: 
 Summary | Full Text:PDF(697.7KB)

A 256 QAM Digital Radio System with a Low Rolloff Factor of 20% for Attaining 6.75 bps/Hz
Hiroshi NAKAMURA Eisuke FUKUDA Noburu IIZUKA Yoshimasa DAIDO Sadao TAKENAKA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1988/01/25
Vol. E71-E  No. 1  pp. 43-50
Type of Manuscript:  PAPER
Category: Radio Communication
Keyword: 
 Summary | Full Text:PDF(761.5KB)

Power Penalty of Multilevel QAM Modem Caused by Two Simultaneously Existing lmpairments
Yoshimasa DAIDO Sadao TAKENAKA Hiroshi NAKAMURA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1987/07/25
Vol. E70-E  No. 7  pp. 628-633
Type of Manuscript:  PAPER
Category: Radio Wave and Satellite Communication
Keyword: 
 Summary | Full Text:PDF(477.5KB)

5 GHz GaAs Monolithic Astable Multivibrator Type Voltage Controlled Oscillator
Masafumi SHIGAKI Yoshimasa DAIDO Yukio TAKEDA Kenichi IMAMURA Hidetake SUZUKI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1984/03/25
Vol. E67-E  No. 3  pp. 161-165
Type of Manuscript:  PAPER
Category: Integrated Circuits
Keyword: 
 Summary | Full Text:PDF(426.2KB)

Lower Mode Excitation in the Coupling of Semiconductor Lasers into Multimode Fibers with Tapered Hemispherical Ends
Hideo KUWAHARA Yoshimasa DAIDO 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1981/09/25
Vol. E64-E  No. 9  pp. 612-613
Type of Manuscript:  LETTER
Category: Optical and Quantum Electronics
Keyword: 
 Summary | Full Text:PDF(193.8KB)

Refractive Index Profiling of Graded-Index Fibers to Attain a 100 MHz Bandwidth at a Fiber Length of 100 km
Yoshimasa DAIDO 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1981/01/25
Vol. E64-E  No. 1  pp. 13-20
Type of Manuscript:  PAPER
Category: Optical and Quantum Electronics
Keyword: 
 Summary | Full Text:PDF(555.9KB)

Mode Conversion Caused by Splice of Graded Index Fibers
Yoshimasa DAIDO Eizo MIYAUCHI Takeo IWAMA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1979/06/25
Vol. E62-E  No. 6  pp. 363-367
Type of Manuscript:  PAPER
Category: Optical and Quantum Electronics
Keyword: 
 Summary | Full Text:PDF(318.7KB)

Estimation of Transmission Loss in Graded Index Fiber Connectors and Splices
Yoshimasa DAIDO Takeo IWAMA Eizo MIYAUCHI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1978/10/25
Vol. E61-E  No. 10  pp. 816-817
Type of Manuscript:  PAPER
Category: Optical and Quantum Electronics
Keyword: 
 Summary | Full Text:PDF(147.9KB)