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