Package org.yamcs.time

Class TimeOfFlightEstimator

java.lang.Object

org.yamcs.time.TimeOfFlightEstimator

public class TimeOfFlightEstimator
extends Object

Time of flight estimator.

It returns time of flight between a spacecraft and a ground antenna by interpolating using user defined spline polynomials.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	TimeOfFlightEstimator.TofInterval	Used for polynomial interpolation of time of flight based on ERT.

Field Summary

Fields

Modifier and Type	Field	Description
static TupleDefinition	TDEF

Constructor Summary

Constructors

Constructor	Description
TimeOfFlightEstimator(String yamcsInstance, String clockName, boolean savePolynomials)

Method Summary

Modifier and Type	Method	Description
void	addInterval(Instant ertStart, Instant ertStop, double[] polCoefficients)
void	addIntervals(Collection<TimeOfFlightEstimator.TofInterval> intervals)
void	deleteSplineIntervals(Instant start, Instant stop)
double	getTof(Instant ert)	Returns time of flight of the signal received at ert at the ground station

Methods inherited from class java.lang.Object

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

Field Detail

TDEF

public static final TupleDefinition TDEF

Constructor Detail

TimeOfFlightEstimator

public TimeOfFlightEstimator(String yamcsInstance,
                             String clockName,
                             boolean savePolynomials)
                      throws InitException

Throws:

InitException

Method Detail

getTof

public double getTof(Instant ert)

Returns time of flight of the signal received at ert at the ground station

Parameters:

ert -

Returns:

time of flight in seconds or NaN if it cannot be computed

addInterval

public void addInterval(Instant ertStart,
                        Instant ertStop,
                        double[] polCoefficients)

addIntervals

public void addIntervals(Collection<TimeOfFlightEstimator.TofInterval> intervals)

deleteSplineIntervals

public void deleteSplineIntervals(Instant start,
                                  Instant stop)