12.2.7. obspy.signal.trigger.ar_pick¶
- ar_pick(a, b, c, samp_rate, f1, f2, lta_p, sta_p, lta_s, sta_s, m_p, m_s, l_p, l_s, s_pick=True)[source]¶
Return corresponding picks of the AR picker
Parameters: - a Z signal of numpy.ndarray float32 point data
- b N signal of numpy.ndarray float32 point data
- c E signal of numpy.ndarray float32 point data
- samp_rate no of samples per second
- f1 frequency of lower Bandpass window
- f2 frequency of upper Bandpass window
- lta_p length of LTA for parrival in seconds
- sta_p length of STA for parrival in seconds
- lta_s length of LTA for sarrival in seconds
- sta_s length of STA for sarrival in seconds
- m_p number of AR coefficients for parrival
- m_s number of AR coefficients for sarrival
- l_p length of variance window for parrival in seconds
- l_s length of variance window for sarrival in seconds
- s_pick if true pick also S phase, else only P
Returns: (ptime, stime) parrival and sarrival