IIR数字滤波器，可以通过对低通模拟滤波器进行模拟频率和数字频率的变换得到低通滤波功能-IIR digital filter can be obtained by the analog low-pass analog filter and the frequency transform of the digital low-pass frequency filter function

利用LabVIEW编写希尔伯特黄变换HHT的算法，实测可用，包括总程序 ，以及IMF，样条插值等各个子VI 函数-Use LabVIEW to write Hilbert Huang Transform HHT algorithm found available, including the overall program, as well as IMF, each sub-spline interpolation function VI