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。
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.
可以与多种脉冲信号输出的流量变送器配套使用,精确地测量液体、气体和蒸汽等流体介质的瞬时流量、累积流量和质量流量。
Connected with flow transducer outputting impulsive signal, it can measure the instant flow, accumulative flow, mass flow of the liquid, the gas or the vapour.
通过数字模拟实验与齿轮箱故障信号检测,验证了新的双线性时间-频率分布对复杂信号中瞬时分量的探测效果。
By digital simulation and detection of gearbox fault signal the detection effect of the novel bilinear time-frequency transform is validated for the transient components in complex signal.
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