User Manual 4.0 Attitude law - Historique des versions

Admin : /* AttitudeLegLaw */

2018-02-26T15:42:46Z

AttitudeLegLaw

← Version précédente		Version du 26 février 2018 à 15:42
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	==== AttitudeLegLaw ====		==== AttitudeLegLaw ====
	<code>AttitudeLegLaw</code> is an implementation of <code>AttitudeLaw</code>. It is composed of : an instance of <code>AttitudeLeg:leg</code>, an instance of <code>AttitudeLaw:lawbefore</code> and an other instance of <code>AttitudeLaw:lawAfter</code>. Its method <code>getAttitude(pvProv, date, frame)</code> returns :		<code>AttitudeLegLaw</code> is an implementation of <code>AttitudeLaw</code>. It is composed of : an instance of <code>AttitudeLeg:leg</code>, an instance of <code>AttitudeLaw:lawbefore</code> and an other instance of <code>AttitudeLaw:lawAfter</code>. Its method <code>getAttitude(pvProv, date, frame)</code> returns : <br>
	- <code>lawbefore.getAttitude(pvProv, date, frame)</code> is the date is inferior to the interval of validity of leg		- <code>lawbefore.getAttitude(pvProv, date, frame)</code> is the date is inferior to the interval of validity of leg<br>
	- <code>leg.getAttitude(pvProv, date, frame)</code> is the date is contained in the interval of validity of leg		- <code>leg.getAttitude(pvProv, date, frame)</code> is the date is contained in the interval of validity of leg<br>
	- <code>lawAfter.getAttitude(pvProv, date, frame)</code> is the date is superior to the the interval of validity of leg		- <code>lawAfter.getAttitude(pvProv, date, frame)</code> is the date is superior to the the interval of validity of leg


	=== Attitudes sequence ===		=== Attitudes sequence ===

Admin : /* AeroAttitudeLaw */

2018-02-26T15:42:15Z

AeroAttitudeLaw

← Version précédente		Version du 26 février 2018 à 15:42
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	==== AeroAttitudeLaw ====		==== AeroAttitudeLaw ====
	<code>AeroAttitudeLaw </code> is a law that aligns platform frame (Ox, Oy, Oz) with a frame defined by 3 angles: angle of attack, sideslip and velocity roll.		<code>AeroAttitudeLaw </code> is a law that aligns platform frame (Ox, Oy, Oz) with a frame defined by 3 angles: angle of attack, sideslip and velocity roll.
	With the following conventions:		With the following conventions:<br>
	- Platform frame is (Ox, Oy, Oz) with Ox along main frame, Oz in the symmetry plane of the aircraft toward up direction.		- Platform frame is (Ox, Oy, Oz) with Ox along main frame, Oz in the symmetry plane of the aircraft toward up direction.<br>
	- Velocity frame is (Oxv, Oyv, Ozv) with Oxv being along velocity and Ozv in the symmetry plane of the aircraft toward up direction.		- Velocity frame is (Oxv, Oyv, Ozv) with Oxv being along velocity and Ozv in the symmetry plane of the aircraft toward up direction.<br>
	The three angles are defined in the following way:		The three angles are defined in the following way:<br>
	- Angle of attack is angle between (Oxv, Oyv) plane and Ox vector.		- Angle of attack is angle between (Oxv, Oyv) plane and Ox vector.<br>
	- Sideslip is angle between Oxv vector and (Ox, Oz) symmetry plane		- Sideslip is angle between Oxv vector and (Ox, Oz) symmetry plane<br>
	- Velocity roll is angle around velocity vector.		- Velocity roll is angle around velocity vector.

Admin : /* RelativeTabulatedAttitudeLaw */

2018-02-26T15:41:49Z

RelativeTabulatedAttitudeLaw

← Version précédente		Version du 26 février 2018 à 15:41
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	==== RelativeTabulatedAttitudeLaw ====		==== RelativeTabulatedAttitudeLaw ====
	<code>RelativeTabulatedAttitudeLaw</code> is an implementation of <code>AttitudeLaw</code>. It is composed of a <code>AttitudeLegLaw:attitudeLegLaw</code> attribute defined by :		<code>RelativeTabulatedAttitudeLaw</code> is an implementation of <code>AttitudeLaw</code>. It is composed of a <code>AttitudeLegLaw:attitudeLegLaw</code> attribute defined by :<br>
	- An instance of <code>RelativeTabulatedAttitudeLeg:leg</code> built with an <code>List<Pair<Double, Rotation>></code> (or an <code>List<Pair<Double, AngularCoordinates>>)</code> input.<br>		- An instance of <code>RelativeTabulatedAttitudeLeg:leg</code> built with an <code>List<Pair<Double, Rotation>></code> (or an <code>List<Pair<Double, AngularCoordinates>>)</code> input.<br>
	- Two instances of <code>AttitudeLaw</code> to apply if the input date is inferior or superior to the interval of validity of <code>leg</code>. These laws can be of two types : <code>ConstantAttitudeLaw</code> or <code>ExtrapolatedAttitudeLaw</code> (local private class of <code>RelativeTabulatedAttitudeLaw</code>).		- Two instances of <code>AttitudeLaw</code> to apply if the input date is inferior or superior to the interval of validity of <code>leg</code>. These laws can be of two types : <code>ConstantAttitudeLaw</code> or <code>ExtrapolatedAttitudeLaw</code> (local private class of <code>RelativeTabulatedAttitudeLaw</code>).
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	The <code>ExtrapolatedAttitudeLaw</code> is a local private class. It is an implementation of <code>AttitudeLaw</code>. It is created with an <code>AngularCoordinates</code> and the expression frame of this attitude. Its method <code>getAttitude()</code> returns <code>AngularCoordinates.shiftedBy(double)</code>.		The <code>ExtrapolatedAttitudeLaw</code> is a local private class. It is an implementation of <code>AttitudeLaw</code>. It is created with an <code>AngularCoordinates</code> and the expression frame of this attitude. Its method <code>getAttitude()</code> returns <code>AngularCoordinates.shiftedBy(double)</code>.

	The <code>ExtrapolatedAttitudeLaw</code> is created with :		The <code>ExtrapolatedAttitudeLaw</code> is created with :<br>
	- the input frame of <code>RelativeTabulatedAttitudeLaw</code><br>		- the input frame of <code>RelativeTabulatedAttitudeLaw</code><br>
	- the <code>AngularCoordinates</code> to the bound of the interval (minimum or maximum).<br>		- the <code>AngularCoordinates</code> to the bound of the interval (minimum or maximum).<br>

Admin : /* RelativeTabulatedAttitudeLaw */

2018-02-26T15:39:40Z

RelativeTabulatedAttitudeLaw

← Version précédente		Version du 26 février 2018 à 15:39
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	==== RelativeTabulatedAttitudeLaw ====		==== RelativeTabulatedAttitudeLaw ====
	<code>RelativeTabulatedAttitudeLaw</code> is an implementation of <code>AttitudeLaw</code>. It is composed of a <code>AttitudeLegLaw:attitudeLegLaw</code> attribute defined by :		<code>RelativeTabulatedAttitudeLaw</code> is an implementation of <code>AttitudeLaw</code>. It is composed of a <code>AttitudeLegLaw:attitudeLegLaw</code> attribute defined by :
	- An instance of <code>RelativeTabulatedAttitudeLeg:leg</code> built with an <code>List<Pair<Double, Rotation>></code> (or an <code>List<Pair<Double, AngularCoordinates>>)</code> input.		- An instance of <code>RelativeTabulatedAttitudeLeg:leg</code> built with an <code>List<Pair<Double, Rotation>></code> (or an <code>List<Pair<Double, AngularCoordinates>>)</code> input.<br>
	- Two instances of <code>AttitudeLaw</code> to apply if the input date is inferior or superior to the interval of validity of <code>leg</code>. These laws can be of two types : <code>ConstantAttitudeLaw</code> or <code>ExtrapolatedAttitudeLaw</code> (local private class of <code>RelativeTabulatedAttitudeLaw</code>).		- Two instances of <code>AttitudeLaw</code> to apply if the input date is inferior or superior to the interval of validity of <code>leg</code>. These laws can be of two types : <code>ConstantAttitudeLaw</code> or <code>ExtrapolatedAttitudeLaw</code> (local private class of <code>RelativeTabulatedAttitudeLaw</code>).

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	The <code>ExtrapolatedAttitudeLaw</code> is created with :		The <code>ExtrapolatedAttitudeLaw</code> is created with :
	- the input frame of <code>RelativeTabulatedAttitudeLaw</code>		- the input frame of <code>RelativeTabulatedAttitudeLaw</code><br>
	- the <code>AngularCoordinates</code> to the bound of the interval (minimum or maximum).		- the <code>AngularCoordinates</code> to the bound of the interval (minimum or maximum).<br>
	Here is an example of a creation of an instance of <code>RelativeTabulatedAttitudeLaw</code> :		Here is an example of a creation of an instance of <code>RelativeTabulatedAttitudeLaw</code> :

Admin le 26 février 2018 à 15:38

2018-02-26T15:38:28Z

← Version précédente		Version du 26 février 2018 à 15:38
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	==== Yaw compensation attitude law ====		==== Yaw compensation attitude law ====
	Yaw compensation is mainly used for Earth observation satellites: as a satellite moves along its track, the image of ground points moves on the focal point of the optical sensor. This motion is a combination of the satellite motion, the Earth rotation and the current attitude (in particular if the pointing includes Roll or Pitch offset).		Yaw compensation is mainly used for Earth observation satellites: as a satellite moves along its track, the image of ground points moves on the focal point of the optical sensor. This motion is a combination of the satellite motion, the Earth rotation and the current attitude (in particular if the pointing includes Roll or Pitch offset). <br>
	In order to reduce geometrical distortion, the yaw angle is changed a little from the simple ground pointing attitude such that the apparent motion of ground points is along a prescribed axis (orthogonal to the optical sensor rows), taking into account all effects.		In order to reduce geometrical distortion, the yaw angle is changed a little from the simple ground pointing attitude such that the apparent motion of ground points is along a prescribed axis (orthogonal to the optical sensor rows), taking into account all effects.

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	* the second direction is aligned at best with another given satellite axis.		* the second direction is aligned at best with another given satellite axis.

	T (geocentric), and the '''SUP''' (heliocentric) pointing laws.		This attitude law can be used to represent the '''GAP''' (geocentric), and the '''SUP''' (heliocentric) pointing laws.

	==== RelativeTabulatedAttitudeLaw ====		==== RelativeTabulatedAttitudeLaw ====

Admin le 21 février 2018 à 14:55

2018-02-21T14:55:54Z

← Version précédente		Version du 21 février 2018 à 14:55
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	The attitude objects are available in the package fr.cnes.sirius.patrius.attitudes.		The attitude objects are available in the package fr.cnes.sirius.patrius.attitudes.

	\|=~~(% colspan~~="3" %)Library~~\|=(% colspan~~="6" %)Javadoc		{\| class="wikitable"
	\|~~(% colspan="3" %)~~Patrius\|~~(% colspan="6" %)~~{{~~JDLink label="Package fr~~.~~cnes.sirius.patrius.attitudes~~		\|-
	~~" jd="OR" suffix="~~fr/cnes/sirius/patrius/attitudes/package-summary.html~~"/}}~~		! scope="col"\| Library
	~~\|(% colspan="3" %)Patrius\|(% colspan="6" %){{JDLink label="~~Package fr.cnes.sirius.patrius.attitudes		! scope="col"\| Javadoc
	~~" jd="PS" suffix="~~fr/cnes/sirius/patrius/attitudes/package-summary.html~~"/}~~}		\|-
			\|Patrius
			\|[{{JavaDoc4.0}}/fr/cnes/sirius/patrius/attitudes/package-summary.html Package fr.cnes.sirius.patrius.attitudes]
			\|-
			\|Patrius
			\|[{{JavaDoc4.0}}/fr/cnes/sirius/patrius/attitudes/package-summary.html Package fr.cnes.sirius.patrius.attitudes]
			\|}

	=== Links ===		=== Links ===

Admin le 21 février 2018 à 13:56

2018-02-21T13:56:31Z

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	\|'''AttitudeProvider'''		\|'''AttitudeProvider'''
	\|This interface is the main interface of the attitudes package, it is related to the orbit determination field.		\|This interface is the main interface of the attitudes package, it is related to the orbit determination field.
	\|[{{~~PathCurrentJavaDoc~~}}/fr/cnes/sirius/patrius/attitudes/AttitudeProvider.html ...]		\|[{{JavaDoc4.0}}/fr/cnes/sirius/patrius/attitudes/AttitudeProvider.html ...]
	\|-		\|-
	\|'''AttitudeLaw'''		\|'''AttitudeLaw'''
	\|This interface represents a generic attitude law provider, for which no interval of validity is specified.		\|This interface represents a generic attitude law provider, for which no interval of validity is specified.
	\|[{{~~PathCurrentJavaDoc~~}}/fr/cnes/sirius/patrius/attitudes/AttitudeLaw.html ...]		\|[{{JavaDoc4.0}}/fr/cnes/sirius/patrius/attitudes/AttitudeLaw.html ...]
	\|-		\|-
	\|'''AttitudeLawModifier'''		\|'''AttitudeLawModifier'''
	\|This interface represents an attitude law provider that modifies/wraps another underlying provider.		\|This interface represents an attitude law provider that modifies/wraps another underlying provider.
	\|[{{~~PathCurrentJavaDoc~~}}/fr/cnes/sirius/patrius/attitudes/AttitudeLawModifier.html ...]		\|[{{JavaDoc4.0}}/fr/cnes/sirius/patrius/attitudes/AttitudeLawModifier.html ...]
	\|-		\|-
	\|'''IOrientationLaw'''		\|'''IOrientationLaw'''
	\|Orientation law.		\|Orientation law.
	\|[{{~~PathCurrentJavaDoc~~}}/fr/cnes/sirius/patrius/attitudes/IOrientationLaw.html ...]		\|[{{JavaDoc4.0}}/fr/cnes/sirius/patrius/attitudes/IOrientationLaw.html ...]
	\|}		\|}

Admin le 20 février 2018 à 16:39

2018-02-20T16:39:47Z

← Version précédente		Version du 20 février 2018 à 16:39
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			__NOTOC__

	== Introduction ==		== Introduction ==
	=== Scope ===		=== Scope ===

Admin : /* Classes */

2018-02-20T15:50:35Z

Classes

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Admin : /* Contents */

2018-02-20T15:31:20Z

Contents

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User Manual 4.0 Attitude law - Historique des versions

Admin : /* AttitudeLegLaw */

Admin : /* AeroAttitudeLaw */

Admin : /* RelativeTabulatedAttitudeLaw */

Admin : /* RelativeTabulatedAttitudeLaw */

Admin le 26 février 2018 à 15:38

Admin le 21 février 2018 à 14:55

Admin le 21 février 2018 à 13:56

Admin le 20 février 2018 à 16:39

Admin : /* Classes */

Admin : /* Contents */

Admin : /* AttitudeLegLaw */

Admin : /* AeroAttitudeLaw */

Admin : /* RelativeTabulatedAttitudeLaw */

Admin : /* RelativeTabulatedAttitudeLaw */

Admin : /* Classes */

Admin : /* Contents */