Gabor-type matrices and discrete huge Gabor transforms. - Sigang Qiu; Hans G. Feichtinger (ICASSP, 1995)

Discrete Gabor structures and optimal representations. - Sigang Qiu; Hans G. Feichtinger (IEEE Trans. Signal Process., 1995)

Generalized dual Gabor atoms and best approximations by Gabor family. - Sigang Qiu (Signal Process., 1996)

The undersampled discrete Gabor transform. - Sigang Qiu (IEEE Trans. Signal Process., 1998)

Discrete Gabor transforms with complexity O (NlogN). - Sigang Qiu; Feng Zhou; Phyllis E. Crandall (Signal Process., 1999)