simpeg.electromagnetics.natural_source.receivers.Admittance#
- class simpeg.electromagnetics.natural_source.receivers.Admittance(locations_e, locations_h=None, orientation='xx', component='real', storeProjections=False)[source]#
Bases:
_ElectricAndMagneticReceiver
Receiver class for data types derived from the 3D admittance tensor.
This class is used to simulate data types that can be derived from the admittance tensor:
\[\begin{split}\begin{bmatrix} Y_{xx} & Y_{xy} \\ Y_{yx} & Y_{yy} \\ Y_{zx} & Y_{zy} \end{bmatrix} = \begin{bmatrix} H_x^{(x)} & H_x^{(y)} \\ H_y^{(x)} & H_y^{(y)} \\ H_z^{(x)} & H_z^{(y)} \end{bmatrix}_{\, r} \; \begin{bmatrix} E_x^{(x)} & E_x^{(y)} \\ E_y^{(x)} & E_y^{(y)} \end{bmatrix}_b^{-1}\end{split}\]where superscripts \((x)\) and \((y)\) denote signals corresponding to incident planewaves whose electric fields are polarized along the x and y-directions respectively. Note that in simpeg, natural source EM data are defined according to standard xyz coordinates; i.e. (x,y,z) is (Easting, Northing, Z +ve up).
- Parameters:
- locations_e(
n_loc
,n_dim
) array_like Locations where the electric fields are measured.
- locations_h(
n_loc
,n_dim
) array_like,optional
Locations where the magnetic fields are measured. Defaults to the same locations as electric field measurements, locations_e.
- orientation{‘xx’, ‘xy’, ‘yx’, ‘yy’, ‘zx’, ‘zy’}
Admittance receiver orientation. Specifies the admittance tensor element \(Y_{ij}\) corresponding to the data. The data type is specified by the component input argument.
- component{‘real’, ‘imag’, ‘complex’}
Admittance data type. For the admittance element \(Y_{ij}\) specified by the orientation input argument, the receiver can be set to compute the following: - ‘real’: Real component of the admittance (A/V) - ‘imag’: Imaginary component of the admittance (A/V) - ‘complex’: The complex admittance is returned. Do not use for inversion!
- storeProjectionsbool
Whether to cache to internal projection matrices.
- locations_e(
Attributes
Admittance data type.
Locations of the two field measurements.
Electric field measurement locations
Magnetic field measurement locations
Number of data associated with the receiver object.
Receiver orientation.
Universal unique identifier
Methods