抽气技术 meaning in English

exhaust technique

Finally we study a modified algorithm , which applies the fast fixed - point algorithm for complex signals to blind signals eparation in frequency domain . it ’ s a one - unit algorithm . to prevent converging to the same signal , the deflation algorithm is used to separate signals one by one
4 .结合上述卷积混合信号的频域分离算法,研究了一个改进单源算法,将复数快速固定点算法应用到频域加速收敛,为了防止算法收敛于同一信号,利用一种抽气技术,这样可一次分离出一个信号,实现卷积混合信号分离。