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Hello, Is it possible to have an H/V curve with its fundamental frequency (fo) greater than 1 Hz but having a natural origin? I have analyzed the Fourier spectrum and applied the "Random Decrement" technique to my H/V curve and both indicate that the frequency (fo) is of natural origin. Th...

Hello, thank you very much for your help.
I attach the images corresponding to the smoothing parameters and also different variations of it (5%, 10%, 20% and 40%).

King regards

hello! thanks for your quick response. Attached is corresponding spectrum. I also tried the random decrease technique on my data(an entire day), but I don't know if I used the correct parameters. I apply a bandpass filter between 32 and 34 Hz. As a filter, I used the butterworth filter with an order...

Hello! I am using the H/V method in Geopsy. I am currently analyzing the peaks that I obtained from my data, in these I observe a 33 Hz frequency peak that is maintained throughout 1 year and also throughout the entire day. I analyzed the spectrum of my raw data to determine if it is of industrial o...

Hello, i'm using H/V in geopsy. I don't know how to disable the Frequency domain window rejection (Cox et al. (2020, GJI) in the time windows ->select. I used it one time and now every time that I run the programan in the *.log appear # Frequency domain window rejection (Cox et al. (2020, GJI) FREQU...