By sliding Fourier transform (SFT), the convolutive mixture problem is changed into instantaneous case in time-frequent domain, which can be solved by applying an instantaneous separation method for every frequent bin.

• 通过滑动傅立叶变换将信号从时域转换到时频域,同时使得卷积混迭问题退化为瞬时混迭问题。 只要将瞬时盲源分离算法依次用于每个子频带可以得到整个宽带范围内源信号的估计。