Wavelet based de-noising for chaotic signal prediction using the trajectory parallel measure. - Shigeo Wada; Yuji Koizumi (EUSIPCO, 2004)

Trial implementation of acoustic distance measurement method for very-close-range measurement based on standing waves using power and phase spectra of single-channel observations. - Noboru Nakasako; Yuji Koizumi; Toshihiro Shinohara; Masato Nakayama; Tetsuji Uebo (GCCE, 2013)