pygrt.pygrn

file:

pygrn.py

author:

Zhu Dengda (zhudengda@mail.iggcas.ac.cn)

date:

2024-07-24

该文件包括 Python端使用的格林函数 pygrt.pygrn.PyGreenFunction

class pygrt.pygrn.PyGreenFunction(name: str, nt: int, dt: float, upsampling_n: int, freqs: ndarray, wI: float, dist: float, depsrc: float, deprcv: float)

基类：object

__init__(name: str, nt: int, dt: float, upsampling_n: int, freqs: ndarray, wI: float, dist: float, depsrc: float, deprcv: float)

参数:

• name – source-type (EX,VF,HF,DD,DS,SS) + component (Z,R,T)

• nt – number of time points

• dt – time interval (s)

• upsampling_n – upsampling factor

• freqs – frequency array (Hz)

• wI – imaginary angular frequency wI，omega = w - j*wI

• dist – epicentral distance (km)

• depsrc – source depth (km)

• deprcv – receiver depth (km)

plot_response()

plot the frequency response, including amplitude response and phase response

freq2time(T0: float, travtP: float, travtS: float, mult: float = 1.0, skipImagComps: bool = False)

Convert the Green’s function from the frequency domain to the time domain and return it in the form of obspy.Trace

参数:

T0 – The offset (secs) of the starttime w.r.t the event origin, for example, T0=5 denotes recording began 5 seconds after the origin.

返回:

• tr: obspy.Trace Green’s function