Virtually increasing microphone array elements by interpolation in complex-logarithmic domain. - Hiroki Katahira; Nobutaka Ono; Shigeki Miyabe; Takeshi Yamada; Shoji Makino (EUSIPCO, 2013)

Generalized amplitude interpolation by β-divergence for virtual microphone array. - Hiroki Katahira; Nobutaka Ono; Shigeki Miyabe; Takeshi Yamada; Shoji Makino (IWAENC, 2014)

Nonlinear speech enhancement by virtual increase of channels and maximum SNR beamformer. - Hiroki Katahira; Nobutaka Ono; Shigeki Miyabe; Takeshi Yamada; Shoji Makino (EURASIP J. Adv. Signal Process., 2016)