Class TDOA

  • All Implemented Interfaces:
    Comparable<ComparableMeasurement>, ComparableMeasurement, ObservedMeasurement<TDOA>, TimeStamped, ParameterDriversProvider

    public class TDOA
    extends GroundReceiverMeasurement<TDOA>
    Class modeling a Time Difference of Arrival measurement with a satellite as emitter and two ground stations as receivers.

    TDOA measures the difference in signal arrival time between the emitter and receivers, corresponding to a difference in ranges from the two receivers to the emitter.

    The date of the measurement corresponds to the reception of the signal by the prime station. The measurement corresponds to the date of the measurement minus the date of reception of the signal by the second station: tdoa = tr1 - tr2

    The motion of the stations and the satellite during the signal flight time are taken into account.

    Since:
    11.2
    Author:
    Pascal Parraud
    • Constructor Detail

      • TDOA

        public TDOA​(GroundStation primeStation,
                    GroundStation secondStation,
                    AbsoluteDate date,
                    double tdoa,
                    double sigma,
                    double baseWeight,
                    ObservableSatellite satellite)
        Simple constructor.
        Parameters:
        primeStation - ground station that gives the date of the measurement
        secondStation - ground station that gives the measurement
        date - date of the measurement
        tdoa - observed value (s)
        sigma - theoretical standard deviation
        baseWeight - base weight
        satellite - satellite related to this measurement