Tohru Kohda

54 papers A 1B 9C 7Misc 1Journal 22Unranked 14
YearRankTypeTitle / Venue / Authors
2014 — conf
Digital Phase Updating Loop and Delay-Doppler Space Division Multiplexing for Higher Order MPSK.
MACOM
Yutaka Jitsumatsu, Tohru Kohda
2014 B conf
Phase-tuned layers with multiple 2D SS codes realize 16PSK communication.
WCNC
Tohru Kohda, Yutaka Jitsumatsu, Kazuyuki Aihara
2013 — conf
Delay-Doppler Space Division-Based Multiple-Access Solves Multiple-Target Detection.
MACOM
Yutaka Jitsumatsu, Tohru Kohda, Kazuyuki Aihara
2013 J jnl
Detection of precursory signals in front of impulsive P-waves.
Digit. Signal Process.
Ali Gamal Hafez, Mostafa Rabie, Tohru Kohda
2013 — conf
Gabor Division/Spread Spectrum System Is Separable in Time and Frequency Synchronization.
VTC Fall
Tohru Kohda, Yutaka Jitsumatsu, Kazuyuki Aihara
2013 B conf
PLL-free receiver for Gabor division/spread spectrum system.
WiMob
Tohru Kohda, Yutaka Jitsumatsu, Kazuyuki Aihara
2013 — conf
Recovering noncoherent MPSK signal with unknown delay and Doppler using its ambiguity function.
ITST
Tohru Kohda, Yutaka Jitsumatsu, Kazuyuki Aihara
2013 J jnl
Seismic noise study for accurate P-wave arrival detection via MODWT.
Comput. Geosci.
Ali Gamal Hafez, Mostafa Rabie, Tohru Kohda
2013 B conf
Signals that can be easily time-frequency synchronized from their ambiguity function.
ITW
Tohru Kohda, Yutaka Jitsumatsu, Kazuyuki Aihara
2013 — conf
Spread spectrum-based cooperative and individual time-frequency synchronization.
ISWCS
Yutaka Jitsumatsu, Tohru Kohda, Kazuyuki Aihara
2012 J jnl
Beta encoders: Symbolic Dynamics and Electronic Implementation.
Int. J. Bifurc. Chaos
Tohru Kohda, Yoshihiko Horio, Yoichiro Takahashi, Kazuyuki Aihara
2012 — conf
Frequency synchronisation using SS technique.
ISWCS
Tohru Kohda, Yutaka Jitsumatsu, Kazuyuki Aihara
2012 B conf
Frequency-division spread-spectrum makes frequency synchronisation easy.
GLOBECOM
Tohru Kohda, Yutaka Jitsumatsu, Kazuyuki Aihara
2012 C conf
Welch Bound for Bandlimited and Timelimited Signals.
SETA
Yutaka Jitsumatsu, Tohru Kohda, Kazuyuki Aihara
2011 Misc conf
2D Markovian SS codes flatten time-frequency distribution of signals in asynchronous Gabor division CDMA systems.
ICASSP
Tohru Kohda, Yutaka Jitsumatsu, Kazuyuki Aihara
2010 J jnl
Clear P-wave arrival of weak events and automatic onset determination using wavelet filter banks.
Digit. Signal Process.
Ali Gamal Hafez, Muhammad Tahir Abbas Khan, Tohru Kohda
2009 J jnl
Earthquake onset detection using spectro-ratio on multi-threshold time-frequency sub-band.
Digit. Signal Process.
Ali Gamal Hafez, Tahir Abbas Khan, Tohru Kohda
2008 J jnl
Low-Complexity Code Acquisition Method in DS/CDMA Communication Systems: Application of the Maximum Likelihood Method to Propagation Delay Estimation.
IEICE Trans. Commun.
Nobuoki Eshima, Tohru Kohda
2008 J jnl
Negative Beta Encoder
CoRR
Tohru Kohda, Satoshi Hironaka, Kazuyuki Aihara
2008 B conf
Prolate spheroidal wave functions induce Gaussian chip waveforms.
ISIT
Yutaka Jitsumatsu, Tohru Kohda
2008 B conf
Quasi-Orthogonal Multi-Carrier CDMA.
GLOBECOM
Yutaka Jitsumatsu, Tohru Kohda
2007 J jnl
Cryptanalysis of Chaos-Based ElGamal Public-Key Encryption.
Int. J. Bifurc. Chaos
Ryuichi Hane, Tohru Kohda
2007 J jnl
Solvable Three-Dimensional Rational Chaotic Map Defined by Jacobian Elliptic Functions.
Int. J. Bifurc. Chaos
Asuka Ono, Tohru Kohda
2007 J jnl
Statistical solution to the capacity problem in direct-sequence code-division multiple-access communication systems.
IMA J. Math. Control. Inf.
Nobuoki Eshima, Tohru Kohda, Minoru Tabata
2007 B conf
Welch Bound for FIR Lowpass Filtered Sequences.
ISIT
Yutaka Jitsumatsu, Tohru Kohda
2006 B conf
A lower bound on the mean squared correlations for band-limited asynchronous DS/CDMA systems.
ISIT
Yutaka Jitsumatsu, Tohru Kohda
2006 C conf
Chip-Asynchronous Version of Welch Bound: Gaussian Pulse Improves BER Performance.
SETA
Yutaka Jitsumatsu, Tohru Kohda
2006 B conf
Gaussian Chip Waveform Together with Markovian Spreading Codes Improve BER Performance in Chip-Asynchronous CDMA Systems.
GLOBECOM
Yutaka Jitsumatsu, Tahir Abbas Khan, Tohru Kohda
2006 C conf
Gaussian chip shaping enhances the superiority of Markovian codes in DS/CDMA systems.
ISCAS
Yutaka Jitsumatsu, Tohru Kohda
2006 J jnl
Statistical approach to the code acquisition problem in direct-sequence spread-spectrum communication systems.
IMA J. Math. Control. Inf.
Nobuoki Eshima, Tohru Kohda
2005 — conf
A novel code acquisition algorithm and its application to Markov spreading codes.
ISCAS (3)
Tohru Abbas Khan, Nobuoki Eshima, Yutaka Jitsumatsu, Tohru Kohda
2005 J jnl
Code Acquisition in DS/CDMA Systems by Employing a Detector Based on
IEICE Trans. Commun.
Tahir Abbas Khan, Nobuoki Eshima, Yutaka Jitsumatsu, Tohru Kohda
2005 — conf
Design of code-matched receiver for DS/CDMA communications.
ISCAS (2)
Yutaka Jitsumatsu, Tohru Kohda
2005 — conf
Solvable 2-dimensional rational chaotic map defined by Jacobian elliptic functions.
ISCAS (2)
Aya Kato, Tohru Kohda
2005 J jnl
Special Section on Nonlinear Theory and its Applications.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Tohru Kohda
2004 — conf
Markovian SS codes imply inversion-free code acquisition in asynchronous DS/CDMA systems.
ISCAS (4)
Nobuoki Eshima, Yutaka Jitsumatsu, Tohru Kohda
2004 — conf
Resonance properties of Chebyshev chaotic sequences.
ISCAS (4)
Tomohiro Yoshimura, Tohru Kohda
2004 — conf
Statistical properties of chaotic sequences generated by Jacobian elliptic Chebyshev rational maps.
ISCAS (5)
Tohru Kohda
2003 J jnl
A Recursive Procedure for Designing Optimal
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Kiyoaki Yoshida, Yasumasa Sujaku, Tohru Kohda
2003 J jnl
Construction of a Piecewise Linear One-Dimensional Map Generating an Arbitrary Prescribed Tree Source.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yasutada Oohama, Mariko Suemitsu, Tohru Kohda
2003 J jnl
Number of mutual connections in neighborhoods and its application to self-diagnosable systems.
Inf. Process. Lett.
Kiyoaki Yoshida, Yasumasa Sujaku, Tohru Kohda
2003 — conf
Spread-spectrum Markovian-code acquisition in asynchronous DS/CDMA systems.
ISCAS (3)
Tohru Kohda, Yutaka Jitsumatsu, Tahir Abbas Khan
2002 J jnl
Information sources using chaotic dynamics.
Proc. IEEE
Tohru Kohda
2002 A conf
Self-Organizing Systems with Self-Diagnosability.
DSN
Kiyoaki Yoshida, Tohru Kohda, Yasumasa Sujaku
2002 J jnl
Statistical Properties of Chaotic Binary Sequences Generated by One-Dimensional Maps.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yasutada Oohama, Tohru Kohda
2001 C conf
Constant Sum Implies Statistical Independence of Chaotic Sequences.
SETA
Tohru Kohda
2000 C conf
On distributions of correlation values of spreading sequences based on Markov information sources.
ISCAS
Tohru Kohda, Hiroshi Fujisaki, Shigeru Ideue
2000 C conf
The Jacobian elliptic Chebyshev rational maps can generate sequences of i.i.d. random variables.
ISCAS
Tohru Kohda, Hiroshi Fujisaki
1998 C conf
Sequences of I.I.D. Binary Random Variables Using Chaotic Dynamics.
SETA
Tohru Kohda
1997 J jnl
Control method for preloading with priority information in an integrated radiology information system/picture archiving and communication system.
J. Digit. Imaging
Eitaro Nishihara, Hiroyuki Kura, Gen Kubota, Tohru Kohda
1997 J jnl
Statistics of chaotic binary sequences.
IEEE Trans. Inf. Theory
Tohru Kohda, Akio Tsuneda
1994 J jnl
A Simple Discriminator for Identifying Faults in Highly Structured Diagnosable Systems.
J. Circuits Syst. Comput.
Tohru Kohda
1994 J jnl
Switched capacitor circuit for 1/f noise generation using a power-law circuit.
Int. J. Circuit Theory Appl.
Kenji Murao, Tohru Kohda
1988 — conf
A recursive procedure for optimally designing a hybrid fault diagnosable system.
FTCS
Tohru Kohda, Ken-ichi Abiru