周期律
周期律
本文介绍了一种基于DSP的低信噪比周期信号实时提取系统的设计和实现。
The fault characteristic periodic signals of the rolling bearing are in low frequency band and often buried in the noise.反映滚动轴承故障的特征周期信号处于较低频带内,容易被噪声淹没,难以检测。
A typical low-level wind shear of thunderstorm activates long periodic oscillation of an aircraft, causing tracking deviation of the aircraft.典型尺度的雷暴低空风切变以长周期振动频率激励飞机,使其偏离预计下滑航迹。