Package com.irurueta.navigation.inertial.estimators

Class RadiiOfCurvatureEstimator

java.lang.Object

com.irurueta.navigation.inertial.estimators.RadiiOfCurvatureEstimator

public class RadiiOfCurvatureEstimator
extends Object

Calculates radii of curvature at a given latitude. This implementation is based on the equations defined in "Principles of GNSS, Inertial, and Multisensor Integrated Navigation Systems, Second Edition" and on the companion software available at: https://github.com/ymjdz/MATLAB-Codes/blob/master/Radii_of_curvature.m

Field Summary

Fields

Modifier and Type	Field	Description
static final double	EARTH_ECCENTRICITY	Earth eccentricity as defined on the WGS84 ellipsoid.
static final double	EARTH_EQUATORIAL_RADIUS_WGS84	The equatorial radius of WGS84 ellipsoid (6378137 m) defining Earth's shape.

Constructor Summary

Constructors

Constructor	Description
RadiiOfCurvatureEstimator()

Method Summary

Modifier and Type	Method	Description
void	estimate(double latitude, RadiiOfCurvature result)	Estimates radii of curvature (meridian and transverse radii of curvature) at provided geodetic latitude.
void	estimate(com.irurueta.units.Angle latitude, RadiiOfCurvature result)	Estimates radii of curvature (meridian and transverse radii of curvature) at provided geodetic latitude.
RadiiOfCurvature	estimateAndReturnNew(double latitude)	Estimates radii of curvature (meridian and transverse radii of curvature) at provided geodetic latitude.
RadiiOfCurvature	estimateAndReturnNew(com.irurueta.units.Angle latitude)	Estimates radii of curvature (meridian and transverse radii of curvature) at provided geodetic latitude.
static void	estimateRadiiOfCurvature(double latitude, RadiiOfCurvature result)	Estimates radii of curvature (meridian and transverse radii of curvature) at provided geodetic latitude.
static void	estimateRadiiOfCurvature(com.irurueta.units.Angle latitude, RadiiOfCurvature result)	Estimates radii of curvature (meridian and transverse radii of curvature) at provided geodetic latitude.
static RadiiOfCurvature	estimateRadiiOfCurvatureAndReturnNew(double latitude)	Estimates radii of curvature (meridian and transverse radii of curvature) at provided geodetic latitude.
static RadiiOfCurvature	estimateRadiiOfCurvatureAndReturnNew(com.irurueta.units.Angle latitude)	Estimates radii of curvature (meridian and transverse radii of curvature) at provided geodetic latitude.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

EARTH_EQUATORIAL_RADIUS_WGS84

public static final double EARTH_EQUATORIAL_RADIUS_WGS84

The equatorial radius of WGS84 ellipsoid (6378137 m) defining Earth's shape.

See Also:

• Constant Field Values

EARTH_ECCENTRICITY

public static final double EARTH_ECCENTRICITY

Earth eccentricity as defined on the WGS84 ellipsoid.

See Also:

• Constant Field Values

Constructor Details

RadiiOfCurvatureEstimator

public RadiiOfCurvatureEstimator()

Method Details

estimate

public void estimate(double latitude,
 RadiiOfCurvature result)

Estimates radii of curvature (meridian and transverse radii of curvature) at provided geodetic latitude.

Parameters:

latitude - geodetic latitude expressed in radians (rad).

result - instance where estimated radii of curvature will be stored.

estimateAndReturnNew

public RadiiOfCurvature estimateAndReturnNew(double latitude)

Estimates radii of curvature (meridian and transverse radii of curvature) at provided geodetic latitude.

Parameters:

latitude - geodetic latitude expressed in radians (rad).

Returns:

a new radii of curvature instance containing meridian and transverse radii of curvature.

estimate

public void estimate(com.irurueta.units.Angle latitude,
 RadiiOfCurvature result)

Estimates radii of curvature (meridian and transverse radii of curvature) at provided geodetic latitude.

Parameters:

latitude - geodetic latitude.

result - instance where estimated radii of curvature will be stored.

estimateAndReturnNew

public RadiiOfCurvature estimateAndReturnNew(com.irurueta.units.Angle latitude)

Estimates radii of curvature (meridian and transverse radii of curvature) at provided geodetic latitude.

Parameters:

latitude - geodetic latitude.

Returns:

a new radii of curvature instance containing meridian and transverse radii of curvature.

estimateRadiiOfCurvature

public static void estimateRadiiOfCurvature(double latitude,
 RadiiOfCurvature result)

Estimates radii of curvature (meridian and transverse radii of curvature) at provided geodetic latitude.

Parameters:

latitude - geodetic latitude expressed in radians (rad).

result - instance where estimated radii of curvature will be stored.

estimateRadiiOfCurvatureAndReturnNew

public static RadiiOfCurvature estimateRadiiOfCurvatureAndReturnNew(double latitude)

Estimates radii of curvature (meridian and transverse radii of curvature) at provided geodetic latitude.

Parameters:

latitude - geodetic latitude expressed in radians (rad).

Returns:

a new radii of curvature instance containing meridian and transverse radii of curvature.

estimateRadiiOfCurvature

public static void estimateRadiiOfCurvature(com.irurueta.units.Angle latitude,
 RadiiOfCurvature result)

Estimates radii of curvature (meridian and transverse radii of curvature) at provided geodetic latitude.

Parameters:

latitude - geodetic latitude.

result - instance where estimated radii of curvature will be stored.

estimateRadiiOfCurvatureAndReturnNew

public static RadiiOfCurvature estimateRadiiOfCurvatureAndReturnNew(com.irurueta.units.Angle latitude)

Estimates radii of curvature (meridian and transverse radii of curvature) at provided geodetic latitude.

Parameters:

latitude - geodetic latitude.

Returns:

a new radii of curvature instance containing meridian and transverse radii of curvature.