Search found 4 matches

by UPCzpc
Wed Apr 07, 2021 1:17 pm
Forum: Ambient vibration techniques
Topic: How to introduce Ambient vibration techniques to newcomers?
Replies: 3
Views: 72601

How to introduce Ambient vibration techniques to newcomers?

I am interviewing for a job, mainly to provide technical services for seismic instruments, and I need to make a related introduction to HVSR and arrays.
What materials should I read?
What knowledge points and precautions should I provide to customers?
by UPCzpc
Wed Feb 03, 2021 2:36 pm
Forum: Ambient vibration techniques
Topic: An idea about HVSR: Use MUSIC instead of FT
Replies: 1
Views: 61943

Re: An idea about HVSR: Use MUSIC instead of FT

I I have completed a simple calculation method about MUSIC_HVSR, This is the spectrum/pseudo-spectrum result of an analog data I got. We look forward to getting more verifiable data for further testing. untitled.png E |music_E |fft_E Z |music_Z |fft_Z |music_E/Z |fft_E/Z untitled.png
by UPCzpc
Tue Jan 19, 2021 8:54 am
Forum: Ambient vibration techniques
Topic: An idea about HVSR: Use MUSIC instead of FT
Replies: 1
Views: 61943

An idea about HVSR: Use MUSIC instead of FT

In my current understanding: HVSR is a frequency-based method, and the obtained image is H/V-f Conventional HVSR is based on the frequency spectrum of the signal obtained by FFT to analyze the abnormality of H and V But FFT is a signal decomposition based on trigonometric function basis, and it is n...
by UPCzpc
Wed Aug 26, 2020 2:18 am
Forum: Geopsy usage
Topic: How split data with geopsy?
Replies: 1
Views: 9028

How split data with geopsy?

Dear marc,bonjour, I am a newbie in geopsy and seismic processing. I got some array data, the format is a long time period (several hours) distributed by stations, and the data collected at multiple locations (about 15 minutes for each location). I want to divide them into data collected by points f...