Masayoshi NAKAMOTO


Preamble Based Channel and CFO Estimation for MIMO-OFDM Systems with Null Subcarriers
Emmanuel MANASSEH Shuichi OHNO Masayoshi NAKAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/11/01
Vol. E94-A  No. 11  pp. 2271-2278
Type of Manuscript:  Special Section PAPER (Special Section on Smart Multimedia & Communication Systems)
Category: Communication Theory and Signals
Keyword: 
OFDMML estimationMIMOCFOCRB
 Summary | Full Text:PDF(813.2KB)

Improvement of Detection Performance in DWT-Based Image Watermarking under Specified False Positive Probability
Masayoshi NAKAMOTO Kohei SAYAMA Mitsuji MUNEYASU Tomotaka HARANO Shuichi OHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/02/01
Vol. E94-A  No. 2  pp. 661-670
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
image watermarkingdiscrete wavelet transform (DWT)false positive probabilityanalysis of detection performance
 Summary | Full Text:PDF(2.6MB)

Design of IIR Digital Filters with Discrete Coefficients Based on MLS Criterion
Masayoshi NAKAMOTO Takao HINAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/04/01
Vol. E89-A  No. 4  pp. 1116-1121
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
IIR digital filtersdiscrete coefficientsmodified least-squares (MLS) criterionlower bound estimation
 Summary | Full Text:PDF(119.9KB)

A New Structure of Error Feedback in 2-D Separable-Denominator Digital Filters
Masayoshi NAKAMOTO Takao HINAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/07/01
Vol. E88-A  No. 7  pp. 1936-1945
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
2-D separable-denominator digital filterserror feedbackroundoff noisenoise reduction
 Summary | Full Text:PDF(1.4MB)