论文部分内容阅读
这是上一篇文章中的一个实际例子。 CDC CYBER1724应用程序中已有完成上述计算的模块,并且借助于其它服务性模块最后可以得到振幅包络、瞬时相位、瞬时频率的剖面。改造离散的希尔伯特频谱H_Δ(f),使用的是镶边法,其镶边函数的频谱G_Δ(f)是一个一般的带通滤波器,即(55)式所示。由LIBRI CN库来定义。f_1=0,f_2=8,f_3=62.5,f_4=125(单位是赫芝)。(58)式中的N取为32,这样所得到的修正后的离散希尔伯特滤波因子是
This is a practical example from the previous article. CDC CYBER1724 applications already have completed the above calculation module, and by means of other service modules can finally get amplitude envelope, instantaneous phase, instantaneous frequency profile. The transformation of the discrete Hilbert spectrum H_Δ (f), using the flanger method, the flanger function spectrum G_Δ (f) is a general band-pass filter, that is, (55). Defined by the LIBRI CN library. f_1 = 0, f_2 = 8, f_3 = 62.5, f_4 = 125 (unit: Hertz). (58) where N is taken as 32 so that the resulting modified discrete Hilbert filter factor is