Array

Class StraightHydrophoneLocator

java.lang.Object

Array.HydrophoneLocator

Array.SimpleHydrophoneLocator

Array.MovingHydrophoneLocator

Array.StraightHydrophoneLocator

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

Direct Known Subclasses:

ThreadingHydrophoneLocator

public class StraightHydrophoneLocator
extends MovingHydrophoneLocator

Straight Hydrophone Locator, uses GPS heading information from GPS and assumes that the hydrophones are just sticking straight out the back of the boat as though on a rigid stick.

Suitable for use with rigidly mounted hydrophones such as on a glider also. *

If depth readout is installed, then the depth will be taken from the depth data for the appropriate time and also, more interestingly, the y coordinate of each hydrophone will be reduced according to cable angle based on a simple (straight) model of how the hydrophone is lying.

Author:

Doug Gillespie

See Also:

Serialized Form

Field Summary

Fields inherited from class Array.HydrophoneLocator

ANGLE_RE_ARRAY, ANGLE_RE_NORTH, ANGLE_RE_SHIP

Constructor Summary

Constructors

Constructor and Description
StraightHydrophoneLocator(PamArray pamArray, Streamer streamer)

Method Summary

Methods

Modifier and Type	Method and Description
double	getArrayHeading(long timeMilliseconds, int phoneNo) Get the heading of the array at the given time.
double	getCorrectedYPos(long timeMilliseconds, int phoneNo) Get a corrected distance astern of the vessel based on the hydrophone being at some depth and the hydrophone cable being basically straight.
LocatorSettings	getDefaultSettings()
StraightHydrophoneLocator	getLocator()
LocatorSettings	getLocatorSettings()
java.lang.String	getName()
java.lang.String	getObserverName()
double	getPairAngle(long timeMilliseconds, int phone1, int phone2, int angleType) Get's the angle between a pair of hydrophones
double	getPhoneHeight(long timeMilliseconds, int phoneNo) Get's the depth of a specific hydrophone at a given time.
GpsData	getPhoneLatLong(long timeMilliseconds, int phoneNo) Get's the LatLong of a specific hydrophone at a given time.
GpsData	getReferenceLatLong(long timeMilliseconds) Gets a reference LatLong for the locator at a given time.
long	getRequiredDataHistory(PamObservable o, java.lang.Object arg)
void	noteNewSettings()
void	removeObservable(PamObservable o)
boolean	setLocatorSettings(LocatorSettings locatorSettings)
void	setSampleRate(float sampleRate, boolean notify)
java.lang.String	toString()

Methods inherited from class Array.SimpleHydrophoneLocator

getArrayHeading, getHydrophoneCoordinateErrors, getHydrophoneCoordinates, getPairSeparation, getPhoneHeading, getPhoneTilt, isChangeable, isStatic, notifyModelChanged

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

StraightHydrophoneLocator

public StraightHydrophoneLocator(PamArray pamArray,
                         Streamer streamer)

Method Detail

getPairAngle

public double getPairAngle(long timeMilliseconds,
                  int phone1,
                  int phone2,
                  int angleType)

Description copied from class: HydrophoneLocator

Get's the angle between a pair of hydrophones

Overrides:

getPairAngle in class SimpleHydrophoneLocator

Parameters:

timeMilliseconds - time angle is needed for

phone1 - First hydrophone

phone2 - Second Hydrophone

angleType - Type of angle - ANGLE_RE_NORTH; ANGLE_RE_SHIP; ANGLE_RE_ARRAY;

Returns:

angle in radians

getReferenceLatLong

public GpsData getReferenceLatLong(long timeMilliseconds)

Description copied from class: HydrophoneLocator

Gets a reference LatLong for the locator at a given time. For towed hydrophones, this will be the ships GPS position at that moment. For static phones it will be the static array reference position.

Overrides:

getReferenceLatLong in class MovingHydrophoneLocator

Parameters:

timeMilliseconds - time reference needed for

Returns:

Reference LatLonbg

getArrayHeading

public double getArrayHeading(long timeMilliseconds,
                     int phoneNo)

Description copied from class: HydrophoneLocator

Get the heading of the array at the given time.

Specified by:

getArrayHeading in class HydrophoneLocator

phoneNo - Hydrophone number (the array may be heading in different directions at different places !)

Returns:

Heading in standard navigation units of degrees clockwise from North.

getPhoneLatLong

public GpsData getPhoneLatLong(long timeMilliseconds,
                      int phoneNo)

Description copied from class: HydrophoneLocator

Get's the LatLong of a specific hydrophone at a given time.

Specified by:

getPhoneLatLong in class HydrophoneLocator

Parameters:

timeMilliseconds - time position needed for

phoneNo - Hydrophone number

Returns:

Hydrophone LatLong

getPhoneHeight

public double getPhoneHeight(long timeMilliseconds,
                    int phoneNo)

Description copied from class: HydrophoneLocator

Get's the depth of a specific hydrophone at a given time.

Overrides:

getPhoneHeight in class SimpleHydrophoneLocator

Parameters:

timeMilliseconds - time depth needed for

phoneNo - Hydrophone number

Returns:

Hydrophone depth

getCorrectedYPos

public double getCorrectedYPos(long timeMilliseconds,
                      int phoneNo)

Get a corrected distance astern of the vessel based on the hydrophone being at some depth and the hydrophone cable being basically straight. Generally, this correction will be small when towing close to the surface, but will get large when the phone sinks.

Parameters:

timeMilliseconds - time that the Y is required for

phoneNo - hydrophone number.

Returns:

corrected distance astern of vessel.

getObserverName

public java.lang.String getObserverName()

getRequiredDataHistory

public long getRequiredDataHistory(PamObservable o,
                          java.lang.Object arg)

noteNewSettings

public void noteNewSettings()

removeObservable

public void removeObservable(PamObservable o)

setSampleRate

public void setSampleRate(float sampleRate,
                 boolean notify)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getLocator

public StraightHydrophoneLocator getLocator()

getName

public java.lang.String getName()

Specified by:

getName in class HydrophoneLocator

getDefaultSettings

public LocatorSettings getDefaultSettings()

Specified by:

getDefaultSettings in class HydrophoneLocator

getLocatorSettings

public LocatorSettings getLocatorSettings()

Specified by:

getLocatorSettings in class HydrophoneLocator

setLocatorSettings

public boolean setLocatorSettings(LocatorSettings locatorSettings)

Specified by:

setLocatorSettings in class HydrophoneLocator