org.orekit.estimation.measurements

Class AngularRaDec

java.lang.Object

org.orekit.estimation.measurements.AbstractMeasurement<T>

org.orekit.estimation.measurements.GroundReceiverMeasurement<AngularRaDec>

org.orekit.estimation.measurements.AngularRaDec

All Implemented Interfaces:

Comparable<ComparableMeasurement>, ComparableMeasurement, ObservedMeasurement<AngularRaDec>, TimeStamped, ParameterDriversProvider

public class AngularRaDec
extends GroundReceiverMeasurement<AngularRaDec>

表示从地面点（站点、望远镜）测量的赤经 - 赤纬测量的类。角度以惯性参考系给出。在信号飞行时间内考虑了航天器的运动。测量日期对应于在地面接收反射信号。

Since:

9.0

Author:

Thierry Ceolin, Maxime Journot

Field Summary

Fields

Modifier and Type	Field and Description
static String	MEASUREMENT_TYPE 测量的类型。

Constructor Summary

Constructors

Constructor and Description
AngularRaDec(GroundStation station, Frame referenceFrame, AbsoluteDate date, double[] angular, double[] sigma, double[] baseWeight, ObservableSatellite satellite) 简单构造函数。

Method Summary

Modifier and Type	Method and Description
org.hipparchus.geometry.euclidean.threed.Vector3D	getObservedLineOfSight(Frame outputFrame) 计算给定测量的视线。
Frame	getReferenceFrame() 获取赤经 - 赤纬角度给出的参考系。
protected EstimatedMeasurement<AngularRaDec>	theoreticalEvaluation(int iteration, int evaluation, SpacecraftState[] states) 估计理论值。
protected EstimatedMeasurementBase<AngularRaDec>	theoreticalEvaluationWithoutDerivatives(int iteration, int evaluation, SpacecraftState[] states) 估计不带导数的理论值。

Methods inherited from class org.orekit.estimation.measurements.GroundReceiverMeasurement

computeCommonParametersWithDerivatives, computeCommonParametersWithout, getGroundStationCoordinates, getGroundStationPosition, getStation, isTwoWay

Methods inherited from class org.orekit.estimation.measurements.AbstractMeasurement

addModifier, addParameterDriver, estimate, estimateWithoutDerivatives, getBaseWeight, getCoordinates, getDate, getDimension, getModifiers, getObservedValue, getParametersDrivers, getSatellites, getTheoreticalStandardDeviation, isEnabled, setEnabled, signalTimeOfFlight, signalTimeOfFlight

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.orekit.estimation.measurements.ObservedMeasurement

getMeasurementType

Methods inherited from interface org.orekit.estimation.measurements.ComparableMeasurement

compareTo

Methods inherited from interface org.orekit.time.TimeStamped

durationFrom

Methods inherited from interface org.orekit.utils.ParameterDriversProvider

getNbParametersDriversValue, getParameterDriver, getParameters, getParameters, getParameters, getParameters, getParametersAllValues, getParametersAllValues, isSupported

Field Detail

MEASUREMENT_TYPE

public static final String MEASUREMENT_TYPE

测量的类型。

另请参阅：

常量字段值

Constructor Detail

AngularRaDec

public AngularRaDec(GroundStation station,
                    Frame referenceFrame,
                    AbsoluteDate date,
                    double[] angular,
                    double[] sigma,
                    double[] baseWeight,
                    ObservableSatellite satellite)

简单构造函数。

参数：

station - 执行测量的地面站

referenceFrame - 给出赤经 - 赤纬角度的参考系

date - 测量日期

angular - 观测值

sigma - 理论标准偏差

baseWeight - 基本权重

satellite - 与此测量相关的卫星

自从：

9.3

Method Detail

getReferenceFrame

public Frame getReferenceFrame()

获取给出赤经 - 赤纬角度的参考系。

返回：

给出赤经 - 赤纬角度的参考系

theoreticalEvaluationWithoutDerivatives

protected EstimatedMeasurementBase<AngularRaDec> theoreticalEvaluationWithoutDerivatives(int iteration,
                                                                                         int evaluation,
                                                                                         SpacecraftState[] states)

估计不带导数的理论值。

理论值没有应用任何修饰符。

指定者：

theoreticalEvaluationWithoutDerivatives 在类 AbstractMeasurement<AngularRaDec>

参数：

iteration - 迭代次数

evaluation - 评估次数

states - 测量日期的轨道状态

返回：

理论值

另请参阅：

AbstractMeasurement.estimate(int, int, SpacecraftState[])

theoreticalEvaluation

protected EstimatedMeasurement<AngularRaDec> theoreticalEvaluation(int iteration,
                                                                   int evaluation,
                                                                   SpacecraftState[] states)

估计理论值。

理论值没有应用任何修饰符。

指定者：

theoreticalEvaluation 在类 AbstractMeasurement<AngularRaDec>

参数：

iteration - 迭代次数

evaluation - 评估次数

states - 测量日期的轨道状态

返回：

理论值

另请参阅：

AbstractMeasurement.estimate(int, int, SpacecraftState[])

getObservedLineOfSight

public org.hipparchus.geometry.euclidean.threed.Vector3D getObservedLineOfSight(Frame outputFrame)

计算给定测量的视线。

参数：

outputFrame - 视线矢量的输出参考系

返回：

测量的视线

自从：

12.0