Signal-to-noise ratio of cylinder head vibration signal was enhanced by using wavelet's soft threshold value de-noising method. 用小波软阈值降噪的方法提高了柴油机缸盖振动信号的信噪比(S/N)。
In order to evaluate results of pretreatment, two definitions of signal-to-noise ratio and background suppression factor were given. 为了评价预处理结果,定义了两个评价参数&信噪比(S/N)和背景抑制因子。
QPSK the additive white Gaussian noise environment, and the signal-to-noise ratio of the simulation. QPSK在加性高斯白噪声环境下,信噪比(S/N)和误码率的仿真。
A method to classify neural spikes under low signal-to-noise ratio was investigated by using artificial neural networks and template-matching. 基于人工神经网络和模板匹配,提出了对低信噪比(S/N)神经元信号分类的方法。
Conventional methods which stimulate seismic records cannot increase frequency components and improve signal-to-noise ratio at the same time. 常规方法产生的地震记录难以在提高记录频率成分的同时提高记录的信噪比(S/N)。