Bilinear time-frequency transform possesses a high resolution both in the time domain and the frequency domain. It can be utilized to detect weak transient signal in complex background.
双线性时间-频率变换在时间域与频率域都具有较高的分辨率,有利于复杂背景条件下微弱瞬时信号的探测。
According to features of power quality disturbance signal, this paper detects the disturbance signals of high-frequency, transient impulse and voltage notch with wavelet transforming.
针对电能质量扰动信号的特性,本文采用小波变换对电力系统的高频、瞬时脉冲、电压切痕扰动信号进行检测。
High-speed transient signal is tested with the testing methods of high-speed oscillograph and fast electronics pulse sampling.
采用高速示波器法和电快脉冲取样法测试高速瞬态信号。
Based on the simulation research of the typical radar analog circuit, it is shown that the main reason of the emerging surge signal is the high transient current conducted in the transistor.
对雷达产生浪涌信号的一个典型电路进行仿真,得出模拟电路产生浪涌的一个重要原因是晶体管的瞬间导通电流过大。
Results show that the reassigned scalogram has the signal feature in the time-scale plane with the high resolution, the transient energy evaluation has the transient feature in a more distinct as…
结果表明,重分配的小波尺度图能够以较高的时频分辨率表示轴承振动中的非平稳特征,反映轴承的多种故障,瞬时能量估计可以作为分析轴承状态的依据。
Results show that the reassigned scalogram has the signal feature in the time-scale plane with the high resolution, the transient energy evaluation has the transient feature in a more distinct as…
结果表明,重分配的小波尺度图能够以较高的时频分辨率表示轴承振动中的非平稳特征,反映轴承的多种故障,瞬时能量估计可以作为分析轴承状态的依据。
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