Koji ASAMI


An Algorithm to Evaluate Imbalances of Quadrature Mixers
Koji ASAMI Michiaki ARAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/04/01
Vol. E92-A  No. 4  pp. 1223-1229
Type of Manuscript:  PAPER
Category: Measurement Technology
Keyword: 
automatic test equipmentquadrature mixersingle side band signalFourier transform
 Summary | Full Text:PDF(1.2MB)

Technique to Improve the Performance of Time-Interleaved A-D Converters with Mismatches of Non-linearity
Koji ASAMI Takahide SUZUKI Hiroyuki MIYAJIMA Tetsuya TAURA Haruo KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/02/01
Vol. E92-A  No. 2  pp. 374-380
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
time-interleaved A-D convertersnon-linearityforeground calibrationdigital error correctionautomatic test equipment
 Summary | Full Text:PDF(730.2KB)

An Algorithm to Improve the Performance of M-Channel Time-Interleaved A-D Converters
Koji ASAMI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/12/01
Vol. E90-A  No. 12  pp. 2846-2852
Type of Manuscript:  PAPER
Category: Analog Signal Processing
Keyword: 
time-interleaved A-D convertersdelta functionspuriousFourier transform
 Summary | Full Text:PDF(610.4KB)