The effect of the back-groundnoise is effectively rejected due to the bispectral technology.
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。
2
The article calculates the mean square root values of pulse noise, observational dynamic range and power spectrum of groundnoise of all seismic station bases.
得出了各地震台台基的脉动噪声的均方根值、观测动态范围、地噪声功率谱。
3
Due to its low power spectral density, the direct sequence spread spectrum signal is always submerged with the back-groundnoise, so that it is difficult to reconnoiter the signal.