gnatss.utilities.geo module

geo.py

Geospatial utilities module

gnatss.utilities.geo.calc_enu_comp(residuals: ~nptyping.ndarray.NDArray[~nptyping.base_meta_classes.Shape[*], ~numpy.float64], az: ~nptyping.ndarray.NDArray[~nptyping.base_meta_classes.Shape[*], ~numpy.float64], el: ~nptyping.ndarray.NDArray[~nptyping.base_meta_classes.Shape[*], ~numpy.float64]) → float64]

Calculates the mean east, north, up components of the residuals from N number of transponders.

Returns:

residuals(N,) ndarray

Residuals values in centimeters (cm)

az(N,) ndarray

Azimuth values in degrees (deg)

el(N,) ndarray

Elevation values in degrees (deg)

gnatss.utilities.geo.ecef2ae(x: float, y: float, z: float, lat0: float, lon0: float, h0: float, ell: Ellipsoid | None = None, deg: bool = True) → tuple[float, float]

Compute azimuth and elevation from ECEF coordinates w.r.t. a reference point

Parameters:

x: float

target x ECEF coordinate (meters)

y: float

target y ECEF coordinate (meters)

z: float

target z ECEF coordinate (meters)

lat0: float

observer geodetic latitude

lon0: float

observer geodetic longitude

h0: float

observer altitude above geodetic ellipsoid (meters)

ellEllipsoid, optional

reference ellipsoid

degbool, optional

degrees input/output (False: radians in/out)

Returns:

az: float

azimuth (degrees)

elev: float

elevation (degrees)