Decomposition of time - variant modal by time - frequency filter 基于时频滤波的时变模态分解方法
Method of insertion loss measurement for radio frequency filters 射频滤波器插入损耗的测量方法。
Identification of nonlinear dynamic systems : time frequency filtering and skeleton curves 时频滤波与骨架曲线
Ultra - high - frequency filter 特高频滤波器
Super - gaussian sliding - frequency filters can be implemented with holographic fiber gratings 这种滤波器可以用全息光纤光栅制成。
Method of insertion - loss measurement for feed - through capacitors and radio - frequency filters 穿心电容器和射频滤波器插入损耗的测量方法
Wave - carrier frequency filter , all kinds of sensors , high - frequency power - transfer transformers 载波频率滤波器,各种感应器和变压器,传感器以及高频电源转换用变压器等。
Frequency - domain gtls identification combined with time - frequency filtering for flight flutter modal parameter identification 基于时频域滤波及频域广义整体最小二乘辨识的飞机颤振模态参数辨识
Secondly , the same pulses are applied to selective frequency filters , and again the required results are obtained from their response 其次,通过对波进行频率过滤来获得相同的脉冲波,从这些波的响应中可得到需要的结论。
This approach the problem of conquers phase excursion and frequency drift that anciently adopts fixed frequency filter and its frame is simple 这种方法克服了以往采用固定频率滤波器带来的相移和频率漂移问题,而且结构简单。