Package com.irurueta.navigation.indoor.position

Class MSACRobustRangingAndRssiPositionEstimator2D

java.lang.Object

com.irurueta.navigation.indoor.position.RobustPositionEstimator<com.irurueta.geometry.Point2D,RangingAndRssiReading<? extends RadioSource>,RobustRangingAndRssiPositionEstimatorListener<com.irurueta.geometry.Point2D>>

com.irurueta.navigation.indoor.position.RobustRangingAndRssiPositionEstimator<com.irurueta.geometry.Point2D>

com.irurueta.navigation.indoor.position.RobustRangingAndRssiPositionEstimator2D

com.irurueta.navigation.indoor.position.MSACRobustRangingAndRssiPositionEstimator2D

public class MSACRobustRangingAndRssiPositionEstimator2D
extends RobustRangingAndRssiPositionEstimator2D

Robustly estimates 2D position using located radio sources and their ranging+RSSI readings at unknown locations and using MSAC algorithm to discard outliers. This kind of estimator can be used to robustly determine the 2D position of a given device by getting ranging+RSSI readings at an unknown location of different radio sources whose 2D locations are known.

Field Summary

Fields inherited from class com.irurueta.navigation.indoor.position.RobustPositionEstimator

DEFAULT_EVENLY_DISTRIBUTE_READINGS, DEFAULT_ROBUST_METHOD, DEFAULT_USE_RADIO_SOURCE_POSITION_COVARIANCE, FALLBACK_DISTANCE_STANDARD_DEVIATION, fingerprint, laterationSolver, listener, preliminarySubsetSize, sources, trilaterationSolverListener

Constructor Summary

Constructors

Constructor	Description
MSACRobustRangingAndRssiPositionEstimator2D()	Constructor.
MSACRobustRangingAndRssiPositionEstimator2D(RobustRangingAndRssiPositionEstimatorListener<com.irurueta.geometry.Point2D> listener)	Constructor.
MSACRobustRangingAndRssiPositionEstimator2D(RangingAndRssiFingerprint<? extends RadioSource,? extends RangingAndRssiReading<? extends RadioSource>> fingerprint)	Constructor.
MSACRobustRangingAndRssiPositionEstimator2D(RangingAndRssiFingerprint<? extends RadioSource,? extends RangingAndRssiReading<? extends RadioSource>> fingerprint, RobustRangingAndRssiPositionEstimatorListener<com.irurueta.geometry.Point2D> listener)	Constructor.
MSACRobustRangingAndRssiPositionEstimator2D(List<? extends RadioSourceLocated<com.irurueta.geometry.Point2D>> sources)	Constructor.
MSACRobustRangingAndRssiPositionEstimator2D(List<? extends RadioSourceLocated<com.irurueta.geometry.Point2D>> sources, RobustRangingAndRssiPositionEstimatorListener<com.irurueta.geometry.Point2D> listener)	Constructor.
MSACRobustRangingAndRssiPositionEstimator2D(List<? extends RadioSourceLocated<com.irurueta.geometry.Point2D>> sources, RangingAndRssiFingerprint<? extends RadioSource,? extends RangingAndRssiReading<? extends RadioSource>> fingerprint)	Constructor
MSACRobustRangingAndRssiPositionEstimator2D(List<? extends RadioSourceLocated<com.irurueta.geometry.Point2D>> sources, RangingAndRssiFingerprint<? extends RadioSource,? extends RangingAndRssiReading<? extends RadioSource>> fingerprint, RobustRangingAndRssiPositionEstimatorListener<com.irurueta.geometry.Point2D> listener)	Constructor.

Method Summary

Modifier and Type	Method	Description
com.irurueta.numerical.robust.RobustEstimatorMethod	getMethod()	Returns method being used for robust estimation.
double	getThreshold()	Gets threshold to determine whether samples are inliers or not when testing possible solutions.
private void	init()	Initializes robust lateration solver.
void	setThreshold(double threshold)	Sets threshold to determine whether samples are inliers or not when testing possible solutions.

Methods inherited from class com.irurueta.navigation.indoor.position.RobustRangingAndRssiPositionEstimator2D

create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, getMinRequiredSources, setPositionsDistancesDistanceStandardDeviationsAndQualityScores

Methods inherited from class com.irurueta.navigation.indoor.position.RobustPositionEstimator

buildPositionsDistancesDistanceStandardDeviationsAndQualityScores, estimate, getConfidence, getCovariance, getDistances, getDistanceStandardDeviations, getEstimatedPosition, getEvenlyDistributeReadings, getFallbackDistanceStandardDeviation, getFingerprint, getFingerprintReadingsQualityScores, getInitialPosition, getInliersData, getListener, getMaxIterations, getNumberOfDimensions, getPositions, getPreliminarySubsetSize, getProgressDelta, getSourceQualityScores, getSources, internalSetFingerprint, internalSetSources, isCovarianceKept, isHomogeneousLinearSolverUsed, isLinearSolverUsed, isLocked, isPreliminarySolutionRefined, isRadioSourcePositionCovarianceUsed, isReady, isResultRefined, setConfidence, setCovarianceKept, setEvenlyDistributeReadings, setFallbackDistanceStandardDeviation, setFingerprint, setFingerprintReadingsQualityScores, setHomogeneousLinearSolverUsed, setInitialPosition, setLinearSolverUsed, setListener, setMaxIterations, setPreliminarySolutionRefined, setPreliminarySubsetSize, setProgressDelta, setRadioSourcePositionCovarianceUsed, setResultRefined, setSourceQualityScores, setSources

Methods inherited from class java.lang.Object

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

Constructor Details

MSACRobustRangingAndRssiPositionEstimator2D

public MSACRobustRangingAndRssiPositionEstimator2D()

Constructor.

MSACRobustRangingAndRssiPositionEstimator2D

public MSACRobustRangingAndRssiPositionEstimator2D(List<? extends RadioSourceLocated<com.irurueta.geometry.Point2D>> sources)

Constructor.

Parameters:

sources - located radio sources used for lateration.

Throws:

IllegalArgumentException - if provided sources is null or the number of provided sources is less than the required minimum.

MSACRobustRangingAndRssiPositionEstimator2D

public MSACRobustRangingAndRssiPositionEstimator2D(RangingAndRssiFingerprint<? extends RadioSource,? extends RangingAndRssiReading<? extends RadioSource>> fingerprint)

Constructor.

Parameters:

fingerprint - fingerprint containing ranging+RSSI readings at an unknown location for provided located radio sources.

Throws:

IllegalArgumentException - if provided fingerprint is null.

MSACRobustRangingAndRssiPositionEstimator2D

public MSACRobustRangingAndRssiPositionEstimator2D(List<? extends RadioSourceLocated<com.irurueta.geometry.Point2D>> sources,
 RangingAndRssiFingerprint<? extends RadioSource,? extends RangingAndRssiReading<? extends RadioSource>> fingerprint)

Constructor

Parameters:

sources - located radio sources used for lateration.

fingerprint - fingerprint containing ranging+RSSI readings at an unknown location for provided located radio sources.

Throws:

IllegalArgumentException - if either provided sources or fingerprint is null or the number of provided sources is less than the required minimum.

MSACRobustRangingAndRssiPositionEstimator2D

public MSACRobustRangingAndRssiPositionEstimator2D(RobustRangingAndRssiPositionEstimatorListener<com.irurueta.geometry.Point2D> listener)

Constructor.

Parameters:

listener - listener in charge of handling events.

MSACRobustRangingAndRssiPositionEstimator2D

public MSACRobustRangingAndRssiPositionEstimator2D(List<? extends RadioSourceLocated<com.irurueta.geometry.Point2D>> sources,
 RobustRangingAndRssiPositionEstimatorListener<com.irurueta.geometry.Point2D> listener)

Constructor.

Parameters:

sources - located radio sources used for lateration.

listener - listener in charge of handling events.

Throws:

IllegalArgumentException - if provided sources is null or the number of provided sources is less than the required minimum.

MSACRobustRangingAndRssiPositionEstimator2D

public MSACRobustRangingAndRssiPositionEstimator2D(RangingAndRssiFingerprint<? extends RadioSource,? extends RangingAndRssiReading<? extends RadioSource>> fingerprint,
 RobustRangingAndRssiPositionEstimatorListener<com.irurueta.geometry.Point2D> listener)

Constructor.

Parameters:

fingerprint - fingerprint containing ranging+RSSI readings at an unknown location for provided location radio sources.

listener - listener in charge of handling events.

Throws:

IllegalArgumentException - if provided fingerprint is null.

MSACRobustRangingAndRssiPositionEstimator2D

public MSACRobustRangingAndRssiPositionEstimator2D(List<? extends RadioSourceLocated<com.irurueta.geometry.Point2D>> sources,
 RangingAndRssiFingerprint<? extends RadioSource,? extends RangingAndRssiReading<? extends RadioSource>> fingerprint,
 RobustRangingAndRssiPositionEstimatorListener<com.irurueta.geometry.Point2D> listener)

Constructor.

Parameters:

sources - located radio sources used for lateration.

fingerprint - fingerprint containing ranging+RSSI readings at an unknown location for provided located radio sources.

listener - listener in charge of handling events.

Method Details

getThreshold

public double getThreshold()

Gets threshold to determine whether samples are inliers or not when testing possible solutions. The threshold refers to the amount of error on distance between estimated position and distances provided for each sample.

Returns:

threshold to determine whether samples are inliers or not.

setThreshold

public void setThreshold(double threshold)
                  throws com.irurueta.navigation.LockedException

Sets threshold to determine whether samples are inliers or not when testing possible solutions. The threshold refers to the amount of error on distance between estimated position and distances provided for each sample.

Parameters:

threshold - threshold to determine whether samples are inliers or not.

Throws:

IllegalArgumentException - if provided value is equal or less than zero.

com.irurueta.navigation.LockedException - if this solver is locked.

getMethod

public com.irurueta.numerical.robust.RobustEstimatorMethod getMethod()

Returns method being used for robust estimation.

Specified by:

getMethod in class RobustPositionEstimator<com.irurueta.geometry.Point2D,RangingAndRssiReading<? extends RadioSource>,RobustRangingAndRssiPositionEstimatorListener<com.irurueta.geometry.Point2D>>

Returns:

method being used for robust estimation.

init

private void init()

Initializes robust lateration solver.