org.orekit.estimation.measurements.gnss

Class MelbourneWubbenaCombination

java.lang.Object

org.orekit.estimation.measurements.gnss.MelbourneWubbenaCombination

All Implemented Interfaces:

MeasurementCombination

public class MelbourneWubbenaCombination
extends Object
implements MeasurementCombination

Melbourne-Wübbena combination.

This combination allows, thanks to the wide-lane combination, a larger wavelength than each signal individually. Moreover, the measurement noise is reduced by the narrow-lane combination of code measurements.

    mMW =  ΦWL- RNL
    mMW =  λWL * NWL+ b + ε
 

With:

• mMW : Melbourne-Wübbena measurement.
• ΦWL : Wide-Lane phase measurement.
• RNL : Narrow-Lane code measurement.
• λWL : Wide-Lane wavelength.
• NWL : Wide-Lane ambiguity (Nf1 - Nf2).
• b : Satellite and receiver instrumental delays.
• ε : Measurement noise.

Narrow-Lane and Wide-Lane combinations shall be performed with the same pair of frequencies.

Since:

10.1

Author:

Bryan Cazabonne

See Also:

"Detector based in code and carrier phase data: The Melbourne-Wübbena combination, J. Sanz Subirana, J.M. Juan Zornoza and M. Hernández-Pajares, 2011"

Method Summary

Modifier and Type	Method and Description
CombinedObservationDataSet	combine(ObservationDataSet observations) Combines observation data using a combination of measurements.
String	getName() Get the name of the combination of measurements.

Methods inherited from class java.lang.Object

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

Method Detail

combine

public CombinedObservationDataSet combine(ObservationDataSet observations)

Combines observation data using a combination of measurements.

Specified by:

combine in interface MeasurementCombination

Parameters:

observations - observation data set

Returns:

a combined observation data set

getName

public String getName()

Get the name of the combination of measurements.

Specified by:

getName in interface MeasurementCombination

Returns:

name of the combination of measurements