Package org.orekit.estimation.measurements

The measurements package defines everything that is related to orbit determination measurements. All measurements must implement the ObservedMeasurement interface, which is the public API that the engine will use to deal with all measurements. The estimated theoretical values can be modified by registering one or several EstimationModifier objects. These objects will manage notions like tropospheric delays, biases, stations offsets ...

Since:

8.0

Author:

Luc Maisonobe, Thierry Ceolin

Interface Summary

Interface	Description
ComparableMeasurement	Base interface for comparing measurements regardless of their type.
EstimationModifier<T extends ObservedMeasurement<T>>	Interface for estimated measurements modifiers used for orbit determination.
EstimationsProvider	Interface for retrieving estimated measurements during orbit determination.
ObservedMeasurement<T extends ObservedMeasurement<T>>	Interface for measurements used for orbit determination.

Class Summary

Class	Description
AbstractMeasurement<T extends ObservedMeasurement<T>>	Abstract class handling measurements boilerplate.
AngularAzEl	Class modeling an Azimuth-Elevation measurement from a ground station.
AngularRaDec	Class modeling a Right Ascension - Declination measurement from a ground point (station, telescope).
BistaticRange	Class modeling a bistatic range measurement using an emitter ground station and a receiver ground station.
BistaticRangeRate	Class modeling a bistatic range rate measurement using an emitter ground station and a receiver ground station.
CommonParametersWithDerivatives	Common intermediate parameters used to estimate measurements where receiver is a ground station.
CommonParametersWithoutDerivatives	Common intermediate parameters used to estimate measurements.
EstimatedEarthFrameProvider	Class modeling an Earth frame whose Earth Orientation Parameters can be estimated.
EstimatedMeasurement<T extends ObservedMeasurement<T>>	Class holding an estimated theoretical value associated to an observed measurement.
EstimatedMeasurementBase<T extends ObservedMeasurement<T>>	Class holding an estimated theoretical value associated to an observed measurement.
FDOA	Class modeling a Frequency Difference of Arrival measurement with a satellite as emitter and two ground stations as receivers.
GroundReceiverCommonParametersWithDerivatives	Common intermediate parameters used to estimate measurements where receiver is a ground station.
GroundReceiverCommonParametersWithoutDerivatives	Common intermediate parameters used to estimate measurements where receiver is a ground station.
GroundReceiverMeasurement<T extends GroundReceiverMeasurement<T>>	Base class modeling a measurement where receiver is a ground station.
GroundStation	Class modeling a ground station that can perform some measurements.
InterSatellitesRange	One-way or two-way range measurements between two satellites.
MultiplexedMeasurement	Class multiplexing several measurements as one.
ObservableSatellite	Class modeling a satellite that can be observed.
Position	Class modeling a position only measurement.
PV	Class modeling a position-velocity measurement.
QuadraticClockModel	Quadratic clock model.
QuadraticFieldClockModel<T extends CalculusFieldElement<T>>	Quadratic clock model.
Range	Class modeling a range measurement from a ground station.
RangeRate	Class modeling one-way or two-way range rate measurement between two vehicles.
TDOA	Class modeling a Time Difference of Arrival measurement with a satellite as emitter and two ground stations as receivers.
TurnAroundRange	Class modeling a turn-around range measurement using a primary ground station and a secondary ground station.

Enum Summary

Enum	Description
EstimatedMeasurementBase.Status	Enumerate for the status of the measurement.