This paper analyses the characteristics of noise and presents the mernod of promoting S/N by inserting a band-pass pre-filter, which can reduce the Pe in data communication under small signal.
通过对噪声特性的分析，提出了用前置带通滤波器来提高信噪比的方法，改善微弱信号时数据通信的效果。
Objective To determine the optical dose of nicardipine(N) for the hemodynamic stability and less cardiovascular stress response during the pre - postintubation period.
目的为在气管插管时减轻心血管应激反应和维持血流动力学稳定，选出尼卡地平的理想剂量。
Objective To determine the optical dose of nicardipine(N) for the hemodynamic stability and less cardiovascular stress response during the pre - postintubation period.
目的为在气管插管时减轻心血管应激反应和维持血流动力学稳定，选出尼卡地平的理想剂量。
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