Nozomu HAMADA


DOA Estimation of Multiple Speech Sources from a Stereophonic Mixture in Underdetermined Case
Ning DING Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/04/01
Vol. E95-A  No. 4  pp. 735-744
Type of Manuscript:  PAPER
Category: Engineering Acoustics
Keyword: 
direction of arrivaltime-frequency representationreliability indexstatistical modelkernel density estimator
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ICA-Based Separation and DOA Estimation of Analog Modulated Signals in Multipath Environment
Kunihiko YOKOI Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/11/01
Vol. E88-B  No. 11  pp. 4246-4249
Type of Manuscript:  Special Section LETTER (Special Section on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
radio surveillancemultipafhICADOA estimation
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Estimation of Target Position by the Combination of MUSIC and Adaptive Beamforming in Stepped-FM Array Radar
Toshihiko FUKUE Atsushi FUJITA Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2005/07/01
Vol. E88-D  No. 7  pp. 1453-1456
Type of Manuscript:  Special Section LETTER (Special Section on Recent Advances in Circuits and Systems--Part 1)
Category: Communications and Wireless Systems
Keyword: 
radarstepped-FMMUSICadaptive beamforming
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DOA Estimation of Moving Target under the Clutter Environment by Applying MUSIC to the QMF Doppler Filter Bank
Toshihiko FUKUE Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/05/01
Vol. E88-B  No. 5  pp. 2142-2151
Type of Manuscript:  PAPER
Category: Sensing
Keyword: 
radarDOAMUSICwavelet transformquadrature mirror filter bank
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Tracking of Speaker Direction by Integrated Use of Microphone Pairs in Equilateral-Triangle
Yusuke HIOKA Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/03/01
Vol. E88-A  No. 3  pp. 633-641
Type of Manuscript:  Special Section PAPER (Special Section on Adaptive Signal Processing and Its Applications)
Category: 
Keyword: 
microphone arrayspeaker direction trackingharmonic structuresteepest descent methodequilateral-triangular arrangement
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Estimation of Azimuth and Elevation DOA Using Microphones Located at Apices of Regular Tetrahedron
Yusuke HIOKA Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/08/01
Vol. E87-A  No. 8  pp. 2058-2062
Type of Manuscript:  Special Section LETTER (Special Section on Digital Signal Processing)
Category: Speech/Acoustic Signal Processing
Keyword: 
microphone pairDOA estimationharmonic structureeigenspace analysisregular tetrahedron
 Summary | Full Text:PDF(1.1MB)

DOA Estimation of Speech Signal Using Microphones Located at Vertices of Equilateral Triangle
Yusuke HIOKA Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/03/01
Vol. E87-A  No. 3  pp. 559-566
Type of Manuscript:  Special Section PAPER (Special Section on Applications and Implementations of Digital Signal Processing)
Category: Audio/Speech Coding
Keyword: 
microphone arrayDOA estimationmicrophone paireigenspace analysisharmonic structurespatial resolution
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Voice Activity Detection with Array Signal Processing in the Wavelet Domain
Yusuke HIOKA Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/11/01
Vol. E86-A  No. 11  pp. 2802-2811
Type of Manuscript:  PAPER
Category: Engineering Acoustics
Keyword: 
voice activity detectionmicrophone arraywavelet packet analysiseigenspace analysisspeech features
 Summary | Full Text:PDF(1.7MB)

Object Extraction from a Moving Background Using Velocity Estimation and Optimal Filter in the MixeD
Shengli WU Hideyuki SHINMURA Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/12/01
Vol. E84-A  No. 12  pp. 3082-3089
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
linear trajectory signalvelocity estimationobject extractionoptimal filterdynamic image processing
 Summary | Full Text:PDF(755KB)

2-D Direction-of-Arrival Estimation Using a Linear Interpolation Technique for Circular Array
Takashi AKIYAMA Tateo YAMAOKA Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/09/01
Vol. E84-B  No. 9  pp. 2688-2696
Type of Manuscript:  PAPER
Category: Sensing
Keyword: 
2-D DOA estimationMUSICcircular arraycoherentvirtual array
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A Robust Velocity Estimation Method by Using Mixed Domain Phase Signal
Shengli WU Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/06/01
Vol. E84-A  No. 6  pp. 1585-1587
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
velocity estimationmixed domainrobustness
 Summary | Full Text:PDF(363.1KB)

Data-Dependent Weighted Median Filtering with Robust Motion Information for Restoring Image Sequence Degraded by Additive Gaussian and Impulsive Noise
Mitsuhiko MEGURO Akira TAGUCHI Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/02/01
Vol. E84-A  No. 2  pp. 432-440
Type of Manuscript:  Special Section PAPER (Special Section on Noise Cancellation and Reduction Techniques)
Category: Noise Reduction for Image Signal
Keyword: 
image sequence restorationmotion informationmotion-compensationdata-dependent filterweighted median filter
 Summary | Full Text:PDF(742.1KB)

Digital Signal Processing: Progress over the Last Decade and the Challenges Ahead
Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/01/01
Vol. E84-A  No. 1  pp. 80-90
Type of Manuscript:  INVITED PAPER (Special Section on the 10th Anniversary of the IEICE Transactions of Fundamentals: "Last Decade and 21st Century")
Category: 
Keyword: 
digital signal processingfilter bankadaptive filternonlinear filtermultimedia signal processing
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An Appropriate Spatial Frequency Selection Method for Moving Object Velocity Estimation in the Mixed Domain
Shengli WU Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/11/25
Vol. E83-A  No. 11  pp. 2348-2356
Type of Manuscript:  PAPER
Category: Image
Keyword: 
linear trajectory signaltransform/spatiotemporal mixed domaindynamic image processingvelocity estimation
 Summary | Full Text:PDF(2MB)

Two Types of Adaptive Beamformer Using 2-D Joint Process Lattice Estimator
Tateo YAMAOKA Takayuki NAKACHI Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/01/25
Vol. E81-A  No. 1  pp. 117-122
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
2-D adaptive beamforminglattice filterarray signal processinglinearly constrained minimum variancegeneralized sidelobe canceler
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Two-Dimensional Least Squares Lattice Algorithm for Linear Prediction
Takayuki NAKACHI Katsumi YAMASHITA Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/11/25
Vol. E80-A  No. 11  pp. 2325-2329
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
lattice filter2-D signal processingadaptive filtertexture analysis
 Summary | Full Text:PDF(261.2KB)

Design of Nonlinear Cellular Neural Network Filters for Detecting Linear Trajectory Signals
Masahiro MUIKAICHI Katsuya KONDO Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/09/25
Vol. E80-A  No. 9  pp. 1655-1661
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
cellular neural networkdynamic image processingextraction of moving objectlinear trajectory signal
 Summary | Full Text:PDF(496.8KB)

Block Estimation Method for Two-Dimensional Adaptive Lattice Filter
InHwan KIM Takayuki NAKACHI Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/04/25
Vol. E80-A  No. 4  pp. 737-744
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
block estimationlattice filter2-D signal processingadaptive algorithm
 Summary | Full Text:PDF(473.9KB)

Classification of Planar Curve Using the Zero-Crossings Representation of Wavelet Transform
Dodi SUDIANA Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/04/25
Vol. E80-A  No. 4  pp. 775-777
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
planar curvewavelet transformzero-crossingspattern recognition
 Summary | Full Text:PDF(174.3KB)

A 2-D Adaptive Joint-Process Lattice Estimator for Image Restoration
Takayuki NAKACHI Katsumi YAMASHITA Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/01/25
Vol. E80-A  No. 1  pp. 140-147
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
lattice filter2-D signal processingadaptive filterimage processing
 Summary | Full Text:PDF(694.6KB)

An Extended Lattice Model of Two-Dimensional Autoregressive Fields
Takayuki NAKACHI Katsumi YAMASHITA Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/11/25
Vol. E79-A  No. 11  pp. 1862-1869
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
lattice filterlinear predictionAR modeling2-D signal processing
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2-D Adaptive Autoregressive Modeling Using New Lattice Structure
Takayuki NAKACHI Katsumi YAMASHITA Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/08/25
Vol. E79-A  No. 8  pp. 1145-1150
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
lattice filter2-D signal processingadaptive filterlinear predictionAR modeling
 Summary | Full Text:PDF(458.6KB)

Design of 2-D IIR Filter Using the Genetic Algorithm
Masahiko KISHIDA Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/01/25
Vol. E79-A  No. 1  pp. 131-133
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
Genetic Algorithmlattice digital filterfilter designnonlinear optimization
 Summary | Full Text:PDF(186.4KB)

FOREWORD
Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1995/05/25
Vol. E78-A  No. 5  pp. 549-549
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(63.2KB)

Evaluation of the Noise Rejection Performance of Linear Trajectory Filters
Toshitaka TAGO Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/10/25
Vol. E77-A  No. 10  pp. 1710-1713
Type of Manuscript:  LETTER
Category: Digital Image Processing
Keyword: 
multidimensional filterlinear trajectory signalmoving image
 Summary | Full Text:PDF(239.5KB)