在我们研制的视觉电生理地形图系统中，成功地用它从背景噪声中提取出VEP信号，完成信号的预处理。
The authors extracted VEP signals from the background noises by wavelet transform successfully and completed the preprocessing of the signals.
由于采用了双谱技术，脑电背景噪声的影响得到有效的抑制。
The effect of the back-ground noise is effectively rejected due to the bispectral technology.
这是外星文明可以突出于宇宙的无线电背景噪声发送信号的一种方式。
That's one way that an extraterrestrial civilization can send a signal that stands up above the radio background noise.
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