org.orekit.estimation.measurements

Class BistaticRange

java.lang.Object

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

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

org.orekit.estimation.measurements.BistaticRange

All Implemented Interfaces:

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

public class BistaticRange
extends GroundReceiverMeasurement<BistaticRange>

表示使用发射地面站和接收地面站进行双静态测距测量的类建模。

该测量被认为是一个信号：

• 从发射地面站发射
• 在航天器上反射
• 在接收地面站接收

测量的日期对应于接收到反射信号的地面接收。

在信号飞行时间内考虑地面站和航天器的运动。

Since:

11.2

Author:

Mark Rutten

Field Summary

Fields

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

Constructor Summary

Constructors

Constructor and Description
BistaticRange(GroundStation emitter, GroundStation receiver, AbsoluteDate date, double range, double sigma, double baseWeight, ObservableSatellite satellite) 简单构造函数。

Method Summary

Modifier and Type	Method and Description
GroundStation	getEmitterStation() 获取发射地面站。
GroundStation	getReceiverStation() 获取接收地面站。
protected EstimatedMeasurement<BistaticRange>	theoreticalEvaluation(int iteration, int evaluation, SpacecraftState[] states) 估算理论值。
protected EstimatedMeasurementBase<BistaticRange>	theoreticalEvaluationWithoutDerivatives(int iteration, int evaluation, SpacecraftState[] states) 估算不带导数的理论值。

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:

常量字段数值

Constructor Detail

BistaticRange

public BistaticRange(GroundStation emitter,
                     GroundStation receiver,
                     AbsoluteDate date,
                     double range,
                     double sigma,
                     double baseWeight,
                     ObservableSatellite satellite)

简单构造函数。

参数:

emitter - 执行传输的地面站

receiver - 执行测量的地面站

date - 测量的日期

range - 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

自版本:

11.2

Method Detail

getEmitterStation

public GroundStation getEmitterStation()

获取发射地面站。

返回:

发射地面站

getReceiverStation

public GroundStation getReceiverStation()

获取接收地面站。

返回:

接收地面站

theoreticalEvaluationWithoutDerivatives

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

估算不带导数的理论值。

理论值没有应用任何修饰符。

指定者:

theoreticalEvaluationWithoutDerivatives 在类中 AbstractMeasurement<BistaticRange>

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<BistaticRange> theoreticalEvaluation(int iteration,
                                                                    int evaluation,
                                                                    SpacecraftState[] states)

估算理论值。

理论值没有应用任何修饰符。

指定者:

theoreticalEvaluation 在类中 AbstractMeasurement<BistaticRange>

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[])