Akinori NISHIHARA


Synthesis of 2-Channel IIR Paraunitary Filter Banks by Successive Extraction of 2-Port Lattice Sections
Nagato UEDA Eiji WATANABE Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/02/01
Vol. E94-A  No. 2  pp. 653-660
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
IIR filtersparaunitary filter banksextractionpower symmetry
 Summary | Full Text:PDF(864.9KB)

Restoration of Images Degraded by Linear Motion Blurred Objects in Still Background
Karn PATANUKHOM Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/08/01
Vol. E92-A  No. 8  pp. 1920-1931
Type of Manuscript:  Special Section PAPER (Special Section on Signal Processing)
Category: Image
Keyword: 
blur identificationmotion blurimage restorationmoving objectstill background
 Summary | Full Text:PDF(4.1MB)

Fast and Accurate Generalized Harmonic Analysis and Its Parallel Computation by GPU
Hisayori NODA Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/03/01
Vol. E92-A  No. 3  pp. 745-752
Type of Manuscript:  Special Section PAPER (Special Section on Latest Advances in Fundamental Theories of Signal Processing)
Category: 
Keyword: 
generalized harmonic analysisgraphical processing unit
 Summary | Full Text:PDF(520.2KB)

Discrete Wirtinger-Type Inequalities for Gauging the Power of Sinusoids Buried in Noise
Saed SAMADI Kaveh MOLLAIYAN Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/03/01
Vol. E92-A  No. 3  pp. 722-732
Type of Manuscript:  Special Section PAPER (Special Section on Latest Advances in Fundamental Theories of Signal Processing)
Category: 
Keyword: 
discrete Wirtinger inequalitiesFan-Taussky-Todd inequalitiessinusoidsspectrum analysismaximally flat filterscircular convolutionadditive white noisesignal-to-noise ratio
 Summary | Full Text:PDF(909.5KB)

Multiple-Image-Based Restoration for Motion Blur with Non-uniform Point Spread Function
Karn PATANUKHOM Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/08/01
Vol. E91-A  No. 8  pp. 1924-1934
Type of Manuscript:  Special Section PAPER (Special Section on Signal Processing)
Category: 
Keyword: 
blur identificationmotion blurimage restorationmultiple image
 Summary | Full Text:PDF(1MB)

Identification of Piecewise Linear Uniform Motion Blur
Karn PATANUKHOM Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/06/01
Vol. E91-A  No. 6  pp. 1416-1425
Type of Manuscript:  Special Section PAPER (Special Section on Image Media Quality)
Category: 
Keyword: 
blur identificationmotion blurimage restoration
 Summary | Full Text:PDF(737.1KB)

Eigensignals of Downsamplers in Time and Transform Domains
Saed SAMADI M. Omair AHMAD Akinori NISHIHARA M.N.S. SWAMY 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/09/01
Vol. E90-A  No. 9  pp. 1904-1912
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
decimationdownsamplingeigensignalfilterbanksLambert seriesMobius functionmultirate systemsquasi-polynomialstime-varying systems
 Summary | Full Text:PDF(244.4KB)

Explicit Formula for Predictive FIR Filters and Differentiators Using Hahn Orthogonal Polynomials
Saed SAMADI Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/08/01
Vol. E90-A  No. 8  pp. 1511-1518
Type of Manuscript:  Special Section PAPER (Special Section on Papers Selected from the 21st Symposium on Signal Processing)
Category: 
Keyword: 
Hahn polynomialsorthogonal polynomials of a discrete variablepolynomial signalspolynomial impulse responsepredictive FIR filterspower momentswhite noisedigital differentiators
 Summary | Full Text:PDF(225.3KB)

Stereophonic Acoustic Echo Canceler Based on Two-Filter Scheme
Noriaki MURAKOSHI Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/08/01
Vol. E90-A  No. 8  pp. 1570-1578
Type of Manuscript:  Special Section PAPER (Special Section on Papers Selected from the 21st Symposium on Signal Processing)
Category: 
Keyword: 
stereophonic acoustic echo canceleradaptive filterNLMSnon-uniqueness problem
 Summary | Full Text:PDF(582.9KB)

Bandwidth Extension with Hybrid Signal Extrapolation for Audio Coding
Chatree BUDSABATHON Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/08/01
Vol. E90-A  No. 8  pp. 1564-1569
Type of Manuscript:  Special Section PAPER (Special Section on Papers Selected from the 21st Symposium on Signal Processing)
Category: 
Keyword: 
perceptual audio codingbandwidth extensionlinear predictive extrapolation
 Summary | Full Text:PDF(817.7KB)

Gradient-Limited Affine Projection Algorithm for Double-Talk-Robust and Fast-Converging Acoustic Echo Cancellation
Suehiro SHIMAUCHI Yoichi HANEDA Akitoshi KATAOKA Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/03/01
Vol. E90-A  No. 3  pp. 633-641
Type of Manuscript:  PAPER
Category: Engineering Acoustics
Keyword: 
affine projection algorithmacoustic echo cancellerdouble-talkrobust control
 Summary | Full Text:PDF(1.3MB)

Analytic Constructions of Periodic and Non-periodic Complementary Sequences
Todor COOKLEV Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/11/01
Vol. E89-A  No. 11  pp. 3272-3282
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
correlationdiscrete Fourier transformsorthogonal functionssequencestransformswavelet transforms
 Summary | Full Text:PDF(498.3KB)

Dithered Subband Coding with Spectral Subtraction
Chatree BUDSABATHON Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/06/01
Vol. E89-A  No. 6  pp. 1788-1793
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
dithersubband codingspectral subtractionperceptual coding
 Summary | Full Text:PDF(972.6KB)

Design Method for 2-Channel Signal Word Decomposed Filters with Minimum Output Error and Their Effective VLSI Implementation
Kouhei HOSOKAWA Mitsuhiko YAGYU Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/08/01
Vol. E88-A  No. 8  pp. 2044-2054
Type of Manuscript:  Special Section PAPER (Special Section on Papers Selected from the 19th Symposium on Signal Processing)
Category: Digital Signal Processing
Keyword: 
signal word decomposed filtersVLSI architecturetransistor count
 Summary | Full Text:PDF(885.9KB)

A Change Detection Method for Image Sequences Based on Physical Models
Fumio ITAMI Eiji WATANABE Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/08/01
Vol. E88-A  No. 8  pp. 2100-2107
Type of Manuscript:  Special Section PAPER (Special Section on Papers Selected from the 19th Symposium on Signal Processing)
Category: Image
Keyword: 
change detectionimage processing
 Summary | Full Text:PDF(357KB)

Memory Allocation and Code Optimization Methods for DSPs with Indexed Auto-Modification
Yuhei KANEKO Nobuhiko SUGINO Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/04/01
Vol. E88-A  No. 4  pp. 846-854
Type of Manuscript:  Special Section PAPER (Special Section on Selected Papers from the 17th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
indirect addressingmemory addressingmemory allocationscheduling method
 Summary | Full Text:PDF(782.1KB)

Design of High-Order Noise-Shaping FIR Filters for Overload-Free Stable Single- and Multi-Bit Data Converters
Mitsuhiko YAGYU Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/12/01
Vol. E87-A  No. 12  pp. 3327-3333
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
stabilitynoise-shaping FIR filteroversampling ΣΔ modulatoroptimization
 Summary | Full Text:PDF(477.4KB)

Stability Analysis of 1-Bit ΣΔ Modulators by Covering State Vector Transition with Hyper Cube for Specified Input Peak Amplitudes and Auto-Correlations
Mitsuhiko YAGYU Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/08/01
Vol. E87-A  No. 8  pp. 1855-1862
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: Theory of Signals
Keyword: 
stabilityoversampling ΣΔ modulatorstate vector transitionoptimization
 Summary | Full Text:PDF(690.8KB)

A Log-Normal Distribution Model for Electron Multiplying Detector Signals in Charged Particle Beam Equipments
Mitsuru YAMADA Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/12/01
Vol. E86-A  No. 12  pp. 3276-3282
Type of Manuscript:  PAPER
Category: General Fundamentals and Boundaries
Keyword: 
stochastic processcharged particle beam equipmentlog-normal distributionfiltered Poisson model
 Summary | Full Text:PDF(540.8KB)

FOREWORD
Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/06/01
Vol. E86-A  No. 6  pp. 1325-1325
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(40.4KB)

Stable Single-Bit Noise-Shaping Quantizer Based on ΣΔ Modulation and Successive Data Coding into Pre-Optimized Binary Vectors
Mitsuhiko YAGYU Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/08/01
Vol. E85-A  No. 8  pp. 1781-1788
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: Data Coding
Keyword: 
stabilitysingle-bit quantizernoise-shapingΣΔ modulatordata coding
 Summary | Full Text:PDF(587KB)

Design of FIR Digital Filters with CSD Coefficients Having Power-of-Two DC Gain and Their FPGA Implementation for Minimum Critical Path
Mitsuru YAMADA Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/08/01
Vol. E84-A  No. 8  pp. 1997-2003
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
FIR digital filtersCSDoptimizationinteger programmingFPGA
 Summary | Full Text:PDF(896.2KB)

Code Optimization Technique for Indirect Addressing DSPs with Consideration in Local Computational Order and Memory Allocation
Nobuhiko SUGINO Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/08/01
Vol. E84-A  No. 8  pp. 1960-1968
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: Implementations of Signal Processing Systems
Keyword: 
DSP compilerindirect memory addressingmemory allocationcode optimization
 Summary | Full Text:PDF(583.4KB)

FOREWORD
Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/08/25
Vol. E83-A  No. 8  pp. 1497-1497
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(29.1KB)

Adaptive Line Enhancers on the Basis of Least-Squares Algorithm for a Single Sinusoid Detection
Koji MATSUURA Eiji WATANABE Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/08/25
Vol. E82-A  No. 8  pp. 1536-1543
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
adaptive line enhancerleast-squares algorithmfrequency estimation
 Summary | Full Text:PDF(1.5MB)

Performance Enhancement on Digital Signal Processors with Complex Arithmetic Capability
Yoshimasa NEGISHI Eiji WATANABE Akinori NISHIHARA Takeshi YANAGISAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/02/25
Vol. E82-A  No. 2  pp. 238-245
Type of Manuscript:  Special Section PAPER (Special Section on VLSI for Digital Signal Processing)
Category: 
Keyword: 
digital signal processordigital signal processingcomplex signal processingdigital filtercomplex multiplier
 Summary | Full Text:PDF(441.7KB)

Design of Checkerboard-Distortion-Free Multidimensional Multirate Filters
Tomohiro TAMURA Masaki KATO Toshiyuki YOSHIDA Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/08/25
Vol. E81-A  No. 8  pp. 1598-1606
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
multidimensional filtersmultirate filterscheckerboard distortionscanning line conversion
 Summary | Full Text:PDF(853.8KB)

Minimization of Output Errors of FIR Digital Filters by Multiple Decompositions of Signal Word
Mitsuhiko YAGYU Akinori NISHIHARA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/03/25
Vol. E81-A  No. 3  pp. 407-419
Type of Manuscript:  Special Section PAPER (Special Section of Selected Papers from the 10th Karuizawa Workshop on Circuits and Systems)
Category: 
Keyword: 
FIR digital filtersmultiple decompositions of signal worderror spectrumthe number of multiplications and additions
 Summary | Full Text:PDF(951.4KB)

Memory Allocation Method for Indirect Addressing DSPs with 2 Update Operations
Nakaba KOGURE Nobuhiko SUGINO Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/03/25
Vol. E81-A  No. 3  pp. 420-428
Type of Manuscript:  Special Section PAPER (Special Section of Selected Papers from the 10th Karuizawa Workshop on Circuits and Systems)
Category: 
Keyword: 
DSP compilermemory addressingcode optimization
 Summary | Full Text:PDF(680.3KB)

DSP Code Optimization Methods Utilizing Addressing Operations at the Codes without Memory Accesses
Nobuhiko SUGINO Hironobu MIYAZAKI Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/12/25
Vol. E80-A  No. 12  pp. 2562-2571
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
digital signal processorcompilercode optimizationmemory addressing
 Summary | Full Text:PDF(782.1KB)

LMS-Based Algorithms with Multi-Band Decomposition of the Estimation Error Applied to System Identification
Fernando Gil V. RESENDE,Jr Paulo S.R. DINIZ Keiichi TOKUDA Mineo KANEKO Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/08/25
Vol. E80-A  No. 8  pp. 1376-1383
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
adaptive signal processingfixed and variable step-size LMS algorithmsfilter bankssystem identification
 Summary | Full Text:PDF(629.5KB)

Analysis and Minimization of Output Errors of 2-D Non-separable FIR Digital Filters with Finite Precision Internal Signals
Mitsuhiko YAGYU Akinori NISHIHARA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/08/25
Vol. E80-A  No. 8  pp. 1391-1402
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
2-D non-separable FIR digital filtersfinite wordlengthROM-based filter
 Summary | Full Text:PDF(973.4KB)

Modular Array Structures for Design and Multiplierless Realization of Two-Dimensional Linear Phase FIR Digital Filters
Saed SAMADI Akinori NISHIHARA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/04/25
Vol. E80-A  No. 4  pp. 722-736
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
multi dimensional filtersFIR digital filtersparallel structuresmultiplierless structuressystolic arrays
 Summary | Full Text:PDF(1MB)

Multi-Band Decomposition of the Linear Prediction Error Applied to Adaptive AR Spectral Estimation
Fernando Gil V. RESENDE Jr. Keiichi TOKUDA Mineo KANEKO Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/02/25
Vol. E80-A  No. 2  pp. 365-376
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
digital signal processingAR spectral estimationfilter banksadaptive filteringrecursive least-squares algorithms
 Summary | Full Text:PDF(902.1KB)

Passive Two-dimensional Wave Digital Filters used in a Multirate System having Perfect Reconstruction
Achim GOTTSCHEBER Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/01/25
Vol. E80-A  No. 1  pp. 133-139
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
orthogonal wavelet baseswave digital filterraised-cosine scaling function2-dimensional filter bank
 Summary | Full Text:PDF(487.5KB)

Wavelet Bases Obtained from the Raised-Cosine Filter
Achim GOTTSCHEBER Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/01/25
Vol. E80-A  No. 1  pp. 126-132
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
wavelet basesscaling functionwave digital filtersraised-cosine filter
 Summary | Full Text:PDF(536KB)

DSP Code Optimization Utilizing Memory Addressing Operation
Nobuhiko SUGINO Satoshi IIMURO Akinori NISHIHARA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/08/25
Vol. E79-A  No. 8  pp. 1217-1224
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
DSP compilercode optimizationmemory addressing
 Summary | Full Text:PDF(637.5KB)

Multiplierless Arrays for Realization of Lowpass and Highpass Linear Phase FIR Digital Filters
Saed SAMADI Akinori NISHIHARA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/08/25
Vol. E79-A  No. 8  pp. 1112-1119
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
FIR digital filtersparallel structuresmultiplierless structuressystolic arraysdigital signal processing
 Summary | Full Text:PDF(601.3KB)

Fast FIR Digital Filter Structures Using Minimal Number of Adders and Its Application to Filter Design
Mitsuhiko YAGYU Akinori NISHIHARA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/08/25
Vol. E79-A  No. 8  pp. 1120-1129
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
FIR digital filterCSD expressionMILP
 Summary | Full Text:PDF(797.1KB)

Design of Non-Separable 3-D QMF Banks Using McClellan Transformations
Toshiyuki YOSHIDA Todor COOKLEV Akinori NISHIHARA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/05/25
Vol. E79-A  No. 5  pp. 716-720
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
digital signal processingmultidimensional signal processingQMF banksMcClellan transformation
 Summary | Full Text:PDF(356.6KB)

Filter Bank Implementation of the Shift Operation in Orthonormal Wavelet Bases
Achim GOTTSCHEBER Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/03/25
Vol. E79-A  No. 3  pp. 291-296
Type of Manuscript:  Special Section PAPER (Special Section of Selected Papers from the 8th Karuizawa Workshop on Circuits and Systems)
Category: 
Keyword: 
orthonormal wavelet basesshift operationsfilter banks with perfect reconstruction
 Summary | Full Text:PDF(375.6KB)

Design of FIR Digital Filters Using Estimates of Error Function over CSD Coefficient Space
Mitsuhiko YAGYU Akinori NISHIHARA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/03/25
Vol. E79-A  No. 3  pp. 283-290
Type of Manuscript:  Special Section PAPER (Special Section of Selected Papers from the 8th Karuizawa Workshop on Circuits and Systems)
Category: 
Keyword: 
FIR digital filterCSD representationoptimization
 Summary | Full Text:PDF(619.7KB)

DSP Compiler for Matrix and Vector Expressions with Automatic Computational Ordering
Nobuhiko SUGINO Seiji OHBI Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1995/08/25
Vol. E78-A  No. 8  pp. 989-995
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
DSP compilercode optimizationmatrix and vector computation
 Summary | Full Text:PDF(507.8KB)

2-D Variable FIR Filters Using 3-D Prototype Filters
Toshiyuki YOSHIDA Akinori NISHIHARA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/09/25
Vol. E77-A  No. 9  pp. 1568-1572
Type of Manuscript:  LETTER
Category: Parallel/Multidimensional Signal Processing
Keyword: 
digital signal processingmultidimensional signal processinglinear FIR digital filters and variable filters
 Summary | Full Text:PDF(313.4KB)

Generalized and Partial FFT
Todor COOKLEV Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/09/25
Vol. E77-A  No. 9  pp. 1466-1474
Type of Manuscript:  Special Section PAPER (Special Section of Papers Selected from the 8th Digital Signal Processing Symposium)
Category: Orthogonal Transform
Keyword: 
fast Fourier transformsorthogonal transformsdigital signal processing
 Summary | Full Text:PDF(597.7KB)

Design of 2-D Separable Denominator IIR Digital Filters in Spatial Domain
Thanapong JATURAVANICH Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/07/25
Vol. E77-A  No. 7  pp. 1163-1171
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
digital signal processingoptimization techniques
 Summary | Full Text:PDF(637.6KB)

Graceful Degradation for Multiprocessor Realization of Maximally Flat FIR Digital Filters
Saed SAMADI Akinori NISHIHARA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1994/07/25
Vol. E77-C  No. 7  pp. 1083-1091
Type of Manuscript:  Special Section PAPER (Special Issue on Super Chip for Intelligent Integrated Systems)
Category: 
Keyword: 
graceful degradationFIR digital filtersmodular array realizationdigital signal processing
 Summary | Full Text:PDF(618.6KB)

Parallel and Modular Structures for FIR Digital Filters
Saed SAMADI Akinori NISHIHARA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/03/25
Vol. E77-A  No. 3  pp. 467-474
Type of Manuscript:  Special Section PAPER (Special Section on the 6th Karuizawa Workshop on Circuits and Systems)
Category: Digital Signal Processing
Keyword: 
FIR digital filtersdigital signal processing
 Summary | Full Text:PDF(604.2KB)

A Synthesis of Variable Wave Digital Filters
Eiji WATANABE Masato ITO Nobuo MURAKOSHI Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/01/25
Vol. E77-A  No. 1  pp. 263-271
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
variable digital filterwave digital filtersdigital filterLC filtersignal processing
 Summary | Full Text:PDF(598.6KB)

Interval Properties of Lattice Allpass Fiters with Applications
Saed SAMADI Akinori NISHIHARA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1993/10/25
Vol. E76-A  No. 10  pp. 1775-1780
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
linear and nonlinear digital ftltersdigital signal processing
 Summary | Full Text:PDF(523.2KB)

A Design Method for 3-Dimensional Band-Limiting FIR Filters Using McClellan Transfromation
Toshiyuki YOSHIDA Akinori NISHIHARA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1993/08/25
Vol. E76-A  No. 8  pp. 1283-1292
Type of Manuscript:  Special Section PAPER (Special Section of Papers Selected from the 7th Digital Signal Processing Symposium)
Category: Multidimensional Signal Processing
Keyword: 
digital signal processingFIR filtersband-limiting filtersmultidimensional filtersMcClellan transformation
 Summary | Full Text:PDF(840.5KB)

Time Domain Synthesis of Recursive Digital Filters for Finite Interval Response
Thanapong JATURAVANICH Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1993/06/25
Vol. E76-A  No. 6  pp. 984-989
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
time domain synthesisIIR filtersconvergencenon-linear optimization
 Summary | Full Text:PDF(480.7KB)

A Synthesis of Complex Allpass Circuits Using the Factorization of Scattering Matrices--Explicit Formulae for Even-Order Real Complementary Filters Having Butterworth or Chebyshev Responses--
Nobuo MURAKOSHI Eiji WATANABE Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1993/03/25
Vol. E76-A  No. 3  pp. 317-325
Type of Manuscript:  Special Section PAPER (Special Section on the 5th Karuizawa Workshop on Circuits and Systems)
Category: 
Keyword: 
complex allpass circuitscattering matrixfactorizationanalog transfer functioncharacteristic function
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Design and Implementation of High-Speed and High-Q Active Bandpass Filters with Reduced Sensitivity to Integrator Nonideality
Kazuyuki HORI Shigetaka TAKAGI Tetsuo SATO Akinori NISHIHARA Nobuo FUJII Takeshi YANAGISAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1993/02/25
Vol. E76-A  No. 2  pp. 174-182
Type of Manuscript:  Special Section PAPER (Special Section on High-Speed Analog Circuits and Signal Processing)
Category: 
Keyword: 
active filtersintegratorspole sensitivity
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Efficient Design of N-D Hyperspherically Symmetric FIR Filters
Todor COOKLEV Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1992/12/25
Vol. E75-A  No. 12  pp. 1739-1742
Type of Manuscript:  Special Section LETTER (Special Section on the 1992 IEICE Fall Conference)
Category: 
Keyword: 
digital filtersdigital signal processingmultidimensional digital filters
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A Design Method of Variable FIR Filters Using Multi-Dimensional Filters
Toshiyuki YOSHIDA Akinori NISHIHARA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1992/08/25
Vol. E75-A  No. 8  pp. 964-971
Type of Manuscript:  Special Section PAPER (Special Section on the 6th Digital Signal Processing Symposium)
Category: 
Keyword: 
digital signal processingFIR filtersvariable filtersmulti-dimensional filters
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A Synthesis of Variable IIR Digital Filters
Nobuo MURAKOSHI Eiji WATANABE Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1992/03/25
Vol. E75-A  No. 3  pp. 362-368
Type of Manuscript:  Special Section PAPER (Special Section on the 4th Karuizawa Workshop on Circuits and Systems)
Category: 
Keyword: 
variable filterIIR filtercut-off frequencyfrequency transformationdirect formlattice form
 Summary | Full Text:PDF(448.1KB)

FOREWORD
Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1991/12/25
Vol. E74-A  No. 12  pp. 3923-3923
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(62.5KB)

A Design Method of 2-D Diamond-Shaped Half-Band IIR Filters
Toshiyuki YOSHIDA Akinori NISHIHARA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1991/11/25
Vol. E74-A  No. 11  pp. 3593-3601
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
 Summary | Full Text:PDF(556KB)

A Synthesis of a Class of Complex Digital Filters Based on Circuitry Transformations
Eiji WATANABE Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1991/11/25
Vol. E74-A  No. 11  pp. 3622-3624
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
 Summary | Full Text:PDF(139.1KB)

On Group-Delay Sensitivity Properties of Complex Allpass Lattice Filters
Saed SAMADI Akinori NISHIHARA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1991/11/25
Vol. E74-A  No. 11  pp. 3541-3545
Type of Manuscript:  Special Section PAPER (Special Issue on HAKONE Digital Signal Processing Symposium)
Category: 
Keyword: 
 Summary | Full Text:PDF(282.3KB)

FOREWORD
Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1991/05/25
Vol. E74-A  No. 5  pp. 991-991
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(31.4KB)

FOREWORD
Akinori NISHIHARA Shoji SHINODA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1990/12/25
Vol. E73-E  No. 12  pp. 1923-1924
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(154.5KB)

Frequency-Domain Simulator of Digital Networks from the Structural Description
Nobuhiko SUGINO Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1990/11/25
Vol. E73-E  No. 11  pp. 1804-1806
Type of Manuscript:  Special Section LETTER (Special Issue on 1990 Autumn Natl. Conv. IEICE)
Category: Signals, Circuits and Images
Keyword: 
 Summary | Full Text:PDF(179.2KB)

A Design Method of 2-D Maximally Flat Diamond-Shaped Half-Band FIR Filters
Toshiyuki YOSHIDA Akinori NISHIHARA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1990/06/25
Vol. E73-E  No. 6  pp. 901-907
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
 Summary | Full Text:PDF(494.1KB)

Computational Ordering of Digital Networks under Pipeline Constraints and Its Application to DSP Compilers
Nobuhiko SUGINO Seiji OHBI Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1989/12/25
Vol. E72-E  No. 12  pp. 1299-1306
Type of Manuscript:  Special Section PAPER (Special Issue on the 2nd Karuizawa Workshop on Circuits and Systems)
Category: Digital Signal Processing
Keyword: 
 Summary | Full Text:PDF(643.1KB)

Magnitude and Phase Approximation of IIR Digital Filters Using Linear Programming
Toshiyuki YOSHIDA Akinori NISHIHARA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1989/10/25
Vol. E72-E  No. 10  pp. 1097-1103
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
 Summary | Full Text:PDF(462KB)

Systematic Synthesis of Power-Wave Digital Filters
Hisakuzu KIKUCHI Hiromichi WATANABE Akinori NISHIHARA Takeshi YANAGISAWA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1989/04/25
Vol. E72-E  No. 4  pp. 363-374
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
 Summary | Full Text:PDF(952.6KB)

Linear Phase Condition for Complex FIR Digital Filters
Akinori NISHIHARA Yoshiyuki BESSYO 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1989/02/25
Vol. E72-E  No. 2  pp. 91-91
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
 Summary | Full Text:PDF(64.2KB)

Pipelinable Low-Sensitivity Digital Filters Based on the Localization of Transmission Zeros
Hisakazu KIKUCHI Hiromichi WATANABE Akinori NISHIHARA Takeshi YANAGISAWA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1988/05/25
Vol. E71-E  No. 5  pp. 493-504
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
 Summary | Full Text:PDF(891.4KB)

Design of Wave Digital Filters with Simplified Structures
Eiji WATANABE Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1985/07/25
Vol. E68-E  No. 7  pp. 441-447
Type of Manuscript:  PAPER
Category: Circuit Theory
Keyword: 
 Summary | Full Text:PDF(376.7KB)

Low-Sensitivity Second-Order Digital Filters--Analysis and Design in Terms of Frequency Sensitivity--
Akinori NISHIHARA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1984/08/25
Vol. E67-E  No. 8  pp. 433-439
Type of Manuscript:  PAPER
Category: Circuit Theory
Keyword: 
 Summary | Full Text:PDF(427.7KB)

Realization of Multi-Port Networks Using Operational Amplifiers and Its Applications
Akinori NISHIHARA Takeshi YANAGISAWA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1982/06/25
Vol. E65-E  No. 6  pp. 325-330
Type of Manuscript:  PAPER
Category: Circuit Theory
Keyword: 
 Summary | Full Text:PDF(349.3KB)

A Synthesis of Digital Filters with Minimum Pole Sensitivity
Akinori NISHIHARA Kazunori SUGAHARA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1982/05/25
Vol. E65-E  No. 5  pp. 234-240
Type of Manuscript:  PAPER
Category: Circuit Theory
Keyword: 
 Summary | Full Text:PDF(388.1KB)