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- obspy. signal. trigger. classic_sta_lta — ObsPy 1. 4. 2 documentation - GitHub
classic_sta_lta (a, nsta, nlta) [source] Computes the standard STA LTA from a given input array a The length of the STA is given by nsta in samples, respectively is the length of the LTA given by nlta in samples
- Earthquake Detection STA LTA — CUSeisTut - Read the Docs
How does STA LTA works? The STA LTA algorithm processes filter seismic signals in two moving time windows – a short-time average window (STA) and a long-time average window (LTA) The STA measures the ‘instant’ amplitude of the seismic signal and watches for earthquakes The LTA takes care of the current average seismic noise amplitude
- Geopsy: STA LTA - GeopsyWiki
STA LTA is the ratio between the amplitude, here computed as the L1 norm (average of the absolute values), of the signal on a short time window of length STA and on a long time window of length LTA At a given point STA LTA is computed for the time windows preceding the point
- Topic Understanding and parameter setting of STA LTA trigger algorithm
Today, the ‘short-time-average through long-time-average trigger' (STA LTA) is the most broadly used algorithm in weak-motion seismology It continuously calculates the average values of the absolute amplitude of a seismic signal in two consecutive moving-time windows
- STA LTA Information
STA LTA stands for Short Term Averaging Long Term Averaging More information about LTA STA triggering can be found here: Tuning of Seismic Networks This is an excellent description on how STA LTA works and what numbers should be used for the different channel menu items used for triggering event files
- ML_event_detection_microseismic C8_lta_sta_n01. m at master - GitHub
Demo for microseismic event detection using supervised learning - cuplgb ML_event_detection_microseismic
- Trigger Picker Tutorial — ObsPy 1. 4. 2 documentation - GitHub
For the single station triggers a recursive STA LTA is used The waveform data span about four minutes and include four local events Two are easily recognizable (Ml 1-2), the other two can only be detected with well adjusted trigger settings (Ml <= 0)
- Optimizing STA LTA Settings for Microseismic Earthquake Detection
Optimizing STA LTA settings is crucial for reliable microseismic earthquake detection By carefully configuring the STA and LTA windows and adjusting the threshold ratio, you can enhance the sensitivity and accuracy of seismic event detection
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