pyrfu.pyrf.match_phibe_v module#

pyrfu.pyrf.match_phibe_v.match_phibe_v(b_0, b_z, int_e_dt, n, v)[source]#

Get propagation velocity by matching dBpar and phi. Used together with irf_match_phibe_dir.m.Finds best match in amplitude given, B0, dB_par, phi, propagation direction implied, for specified n and v given as vectors.Returns a matrix of correlations and the two potentials that were correlated.

Parameters:

  • b_0 (array_like) – Average background magnetic field.

  • b_z (array_like) – Parallel wave magnetic field.

  • int_e_dt (array_like) – Potential.

  • n (array_like) – Vector of densities

  • v (array_like) – Vector of velocities.

Returns:

  • corr_mat (numpy.ndarray) – Correlation matrix(nn x nv).

  • phi_b (numpy.ndarray) – B0 * dB_par / n_e * e * mu0

  • phi_e (numpy.ndarray) – int(E) dt * v(dl=-vdt = > -dl = vdt)