Koichi Ichige

Orcid: 0000-0001-7663-6919

According to our database1, Koichi Ichige authored at least 75 papers between 1996 and 2023.

Collaborative distances:
  • Dijkstra number2 of four.
  • Erdős number3 of four.

Timeline

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Bibliography

2023
Low-Cost Learning-Based Path Loss Estimation Using Correlation Graph CNN.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., August, 2023

xMISC: Improved Sparse Linear Array via Maximum Inter-Element Spacing Concept.
IEEE Signal Process. Lett., 2023

A Generalized Extended Nested Array Design via Maximum Inter-Element Spacing Criterion.
IEEE Signal Process. Lett., 2023

ECG Signal Reconstruction Using FMCW Radar and a Convolutional Neural Network for Contactless Vital-Sign Sensing.
IEICE Trans. Commun., 2023

Sparse Array Design for Direction Finding using Deep Learning.
CoRR, 2023

Low-Cost Path Loss Estimation Using Correlation Graph CNN with Novel Feature Parameters.
Proceedings of the 97th IEEE Vehicular Technology Conference, 2023

Feature Extraction Using Hough Transform in Radio Propagation Estimation.
Proceedings of the 98th IEEE Vehicular Technology Conference, 2023

2022
Flexible extended nested arrays for DOA estimation: Degrees of freedom perspective.
Signal Process., 2022

Accurate Source-Number Estimation Using Denoising Preprocessing and Singular Value Decomposition.
IEICE Trans. Commun., 2022

Learning-Based Path Loss Estimation Using Multiple Spatial Data and System Parameters.
Proceedings of the 96th Vehicular Technology Conference, 2022

Flexible Extended Nested Array with Multiple Subarrays Achieving Improved Degrees of Freedom.
Proceedings of the 30th European Signal Processing Conference, 2022

2021
Optimization and Hole Interpolation of 2-D Sparse Arrays for Accurate Direction-of-Arrival Estimation.
IEICE Trans. Commun., 2021

Single Image Haze Removal Using Iterative Ambient Light Estimation with Region Segmentation.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2021

Design of sparse arrays via deep learning for enhanced DOA estimation.
EURASIP J. Adv. Signal Process., 2021

Simulated Annealing Assisted Sparse Array Selection Utilizing Deep Learning.
IEEE Access, 2021

On The Building Map for Radio Propagation Prediction Using Machine Learning.
Proceedings of the 32nd IEEE Annual International Symposium on Personal, 2021

ECG Signal Reconstruction Using FMCW Radar and Convolutional Neural Network.
Proceedings of the 20th International Symposium on Communications and Information Technologies, 2021

High Accuracy Video Foreground Segmentation Based on Feature Normalization.
Proceedings of the 20th International Symposium on Communications and Information Technologies, 2021

A Nested Array Geometry with Enhanced Degrees of Freedom and Hole- Free Difference Coarray.
Proceedings of the 29th European Signal Processing Conference, 2021

2020
DOA-Based Weighted Spatial Filter Design for Sum and Difference Composite Co-Array.
IEICE Trans. Commun., 2020

On the DOA Estimation Performance of Optimum Arrays Based on Deep Learning.
Proceedings of the 11th IEEE Sensor Array and Multichannel Signal Processing Workshop, 2020

A Note on The Maximum Number of Sources in DOA Estimation by MODE.
Proceedings of the 11th IEEE Sensor Array and Multichannel Signal Processing Workshop, 2020

2019
Extended Beamforming by Sum and Difference Composite Co-Array for Real-Valued Signals.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2019

Phase-Difference Compensation and Nonuniform Pulse Transmission for Accurate Real-Time Moving Object Tracking.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2019

Super Nested Sparse Circular Array for High Resolution DOA Estimation.
Proceedings of the IEEE International Symposium on Circuits and Systems, 2019

Optimum 2D Sparse Array and its Interpolation via Nuclear Norm Minimization.
Proceedings of the IEEE International Symposium on Circuits and Systems, 2019

DOA-based Weighted Spatial Filter Design for Sum and Difference Composite Co-Array.
Proceedings of the 26th IEEE International Conference on Electronics, Circuits and Systems, 2019

2018
Nested Circular Array and Its Concentric Extension for Underdetermined Direction of Arrival Estimation.
IEICE Trans. Commun., 2018

A note on CRLB formulation for underdetermined DOA estimation in circularly configured planar arrays.
IEICE Electron. Express, 2018

Automatic Piano Music Transcription using Low Rank NMF and Convolutional Neural Network.
Proceedings of the 2018 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS), 2018

Single Image Haze Removal Using Ambient Light Estimation and Region Segmentation.
Proceedings of the 2018 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS), 2018

Fast Intra Mode Decision Method Based on Outliers of DCT Coefficients and Neighboring Block Information for H.265/HEVC.
Proceedings of the IEEE International Symposium on Circuits and Systems, 2018

Underdetermined Direction of Arrival Estimation by Sum and Difference Composite Co-Array.
Proceedings of the 25th IEEE International Conference on Electronics, Circuits and Systems, 2018

2017
Extended beamforming by sum and difference composite co-array for radio surveillance.
Proceedings of the 2017 IEEE Workshop on Information Forensics and Security, 2017

2016
Array Correlation Matrix Element Properties and Their Application to Low-Cost DOA Estimation.
IEICE Trans. Commun., 2016

Real-time moving object tracking using phase-difference compensation and nonuniform pulse transmission.
Proceedings of the IEEE International Symposium on Circuits and Systems, 2016

Weighted shooting method for high-resolution DOA estimation based on sparse spectrum fitting.
Proceedings of the 24th European Signal Processing Conference, 2016

2015
An efficient Direction-Of-Arrival estimation method for Uniform Rectangular Array based on array covariance matrix element properties.
Proceedings of the 6th IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, 2015

Non-iterative coding tree depth estimation for H.265/HEVC using neighboring block information.
Proceedings of the 10th International Conference on Information, 2015

Multiple snapshot spatial smoothing with improved effective array aperture for high-resolution direction-of-arrival estimation.
Proceedings of the 10th International Conference on Information, 2015

2014
Direction-of-arrival estimation of coherent sources for ULA based on the relation between array covariance matrix elements.
Proceedings of the 6th International Symposium on Communications, 2014

Antenna switching based on the relation between the relative location of array elements for high resolution 2-D DOA estimation.
Proceedings of the 6th International Symposium on Communications, 2014

3-D array configuration using multiple regular tetrahedra for high-resolution 2-D DOA estimation.
Proceedings of the 22nd European Signal Processing Conference, 2014

DOA estimation for low-cost array antenna system based on GROUSE and EM algorithms.
Proceedings of the 2014 IEEE Asia Pacific Conference on Circuits and Systems, 2014

Accurate and low-cost DOA estimation method using array covariance matrix elements.
Proceedings of the 2014 IEEE Asia Pacific Conference on Circuits and Systems, 2014

2013
High Resolution 2-D DOA Estimation by Low-Cost Antenna Array Based on Synthesized Covariance Matrix via Antenna Switching.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2013

High-resolution and low-cost direction-of-arrival estimation by 2q-Root-MUSIC method.
Proceedings of the IEEE Workshop on Signal Processing Systems, 2013

Cuboid array: A novel 3-D array configuration for high resolution 2-D DOA estimation.
Proceedings of the IEEE Workshop on Signal Processing Systems, 2013

Low-cost antenna array via antenna switching for high resolution 2-D DOA estimation.
Proceedings of the IEEE Workshop on Signal Processing Systems, 2013

2012
Improving Elevation Estimation Accuracy in DOA Estimation: How Planar Arrays Can Be Modified into 3-D Configuration.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2012

SURE: SimUltaneous Root Extraction method for DOA estimation of coherent sources by ULA.
Proceedings of the IEEE 7th Sensor Array and Multichannel Signal Processing Workshop, 2012

2011
Automated Microwave Filter Tuning Based on Successive Optimization of Phase and Amplitude Characteristics.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011

2009
Efficient Heterodyne Digital Receiver with Direct RF-to-Digital Conversion for Software Defined Radio.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009

2008
High Resolution DOA Estimation Using Unwrapped Phase Information of MUSIC-Based Noise Subspace.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2008

High resolution 2-D DOA estimation using second-order partial-differential of MUSIC spectrum.
Proceedings of the International Symposium on Circuits and Systems (ISCAS 2008), 2008

2007
High Resolution DOA Estimation Using Second-Order Differential of MUSIC Spectrum.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2007

The Design of Phoneme Grouping for Coarse Phoneme Recognition.
Proceedings of the New Trends in Applied Artificial Intelligence, 2007

2006
Filter Effect on Low-IF Multichannel Receiver: How a Simple Filter Improves Digital Communication Quality.
IEICE Trans. Commun., 2006

Accurate Source Number Detection Using Pre-Estimated Signal Subspace.
IEICE Trans. Commun., 2006

An Efficient Signed-Power-of-Two Term Allocation for Filter Coefficients in Digital Communication System.
IEICE Trans. Commun., 2006

Direction of Arrival Detection System for Radio Surveillance: Frequency Spectrum Analysis of CDMA and Jamming Waves.
Proceedings of the 63rd IEEE Vehicular Technology Conference, 2006

An Explicit High-Resolution DOA Estimation Formula for Two Wave Sources.
Proceedings of the 2006 IEEE International Conference on Acoustics Speech and Signal Processing, 2006

2005
Experimental Study of Jitter Effect on Digital Downconversion Receiver with Undersampling Scheme.
IEICE Trans. Inf. Syst., 2005

2003
An automatic recognition algorithm of analogue modulated signals for disturbance rejection.
Proceedings of the Seventh International Symposium on Signal Processing and Its Applications, 2003

Fixed-point digital processing of recursive least-square algorithm toward FPGA implementation of MMSE adaptive array antenna.
Proceedings of the Seventh International Symposium on Signal Processing and Its Applications, 2003

Interpolation of signals by generalized piecewise-linear multiple generators.
Proceedings of the 2003 IEEE International Conference on Acoustics, 2003

2002
A Computationally Efficient Algorithm for Exponential B-Splines Based on Difference/IIR Filter Approach.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2002

A hardware implementation of LS-CMA adaptive array for high-speed mobile communication.
Proceedings of the 13th IEEE International Symposium on Personal, 2002

Design of Jacobi EVD processor based on CORDIC for DOA estimation with MUSIC algorithm.
Proceedings of the 13th IEEE International Symposium on Personal, 2002

1998
Properties of the frequency transformation matrices for IIR digital filters.
Signal Process., 1998

A simple discrete version of B-splines.
Int. J. Syst. Sci., 1998

1997
An approximation for discrete B-splines in time domain.
IEEE Signal Process. Lett., 1997

An automatic design procedure of IIR digital filters from an analog low-pass filter.
Signal Process., 1997

1996
Quadratic spline interpolator.
Int. J. Syst. Sci., 1996

Discrete B-spline functions.
Proceedings of the 8th European Signal Processing Conference, 1996


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