小波变换技术具有很强的信号分离能力容易把随机噪声从信号中分离出来，从而提高信号的信噪比。
Wavelet Transfer (WT) is a powerful technique in signal separation. It is very easy for WT to improve the signal-to-noise (SNR) by separating the random noise and useful signal.
居于此，文中综合评述在突变株分离、酶检测和信号探测等方面，目前的一些常用技术及其最新进展。
In view of these, the authors give here a comprehensive commentary on some common techniques in mutant isolation, enzyme assay and signal detection and their progress recently.
基于提高被动声纳的检测能力，对水声信号的盲源分离技术进行了探索性研究。
To improve the detection performance of passive sonar, present dissertation addresses the blind separation of underwater acoustic signals.
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