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GpsCommunicationsFrontEnd Class

A communications-based antenna and navigation signal processing front-end for a GPS Receiver.
Inheritance Hierarchy

Namespace:  AGI.Foundation.Navigation.Advanced
Assembly:  AGI.Foundation.Navigation.Advanced (in AGI.Foundation.Navigation.Advanced.dll) Version: 19.5.402.0 (19.5.402.0)
Syntax
public class GpsCommunicationsFrontEnd : Platform, 
	INavigationCommunicationsService, IGpsCommunicationsReceiverConfiguration

The GpsCommunicationsFrontEnd type exposes the following members.

Constructors
  NameDescription
Public methodGpsCommunicationsFrontEnd
Initializes a new instance with default values.
Public methodGpsCommunicationsFrontEnd(GpsCommunicationsFrontEnd, CopyContext)
Initializes a new instance as a copy of an existing instance.
Public methodGpsCommunicationsFrontEnd(PlatformCollection, GpsSignalConfiguration, Point, Axes)
Creates a front end for a GpsReceiver that can be used to model communications between GPS satellites and the GpsReceiver, using a predefined receiver signal configuration.
Public methodGpsCommunicationsFrontEnd(PlatformCollection, NavigationSignalCollection, IListSignalPropagationModel, Point, Axes)
Creates a front end for a GpsReceiver that can be used to model communications between GPS satellites and the GpsReceiver.
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Properties
  NameDescription
Public propertyAntennaEfficiency
Gets or sets the efficiency of the receiver's antenna, between 0 and 1 inclusive. The default is 0.8.
Public propertyAntennaNoiseTemperature
Gets or sets the equivalent noise temperature resulting from effects outside the antenna; galactic noise, Earth's albedo, etc., in kelvin. The default is 75.4 K.
Public propertyChildren
Gets the collection containing the children of this Platform.
(Inherited from Platform.)
Public propertyCorrelatorSpacing
Gets or sets the spacing between the early and late correlator peaks, in chips. Typically 0.125-1.0 chips. The default is 0.125 chips.
Public propertyDelayLockLoopFilterBandwidth
Gets or sets the bandwidth of the DLL tracking loop, in hertz. Typically 1-18 Hz. The default is 18 Hz.
Public propertyEpoch
Gets or sets the time at which the receiver starts receiving signals.
Public propertyExtensions
Gets the collection of extensions attached to this object.
(Inherited from ExtensibleObject.)
Public propertyFrontEndBandwidth
Gets or sets the bandwidth of the receiver used to track all signals, in hertz. The default is 2.046 MHz. Note that this default may be modified by the choice of GpsSignalConfiguration specified in the constructor.
Public propertyIncludeGpsSignalsAsInterferers
Gets or sets a value indicating whether to add GPS signals as interference sources in the front end's communication system.
Public propertyInterferingSources
Gets the list of interfering sources for this GpsCommunicationsFrontEnd. Note that any sources that you add to this list must have the IPlaceHolderService or ISignalTransmissionService available.
Public propertyIsDualFrequency
Gets or sets a value indicating whether this receiver uses signals from two frequencies.
Public propertyIsFrozen
Gets a value indicating whether this object is frozen. A frozen object cannot be modified and an ObjectFrozenException will be thrown if an attempt is made to do so.
(Inherited from DefinitionalObject.)
Public propertyLnaGain
Gets or sets the gain of the Low Noise Amplifier (LNA). The default is 100 (20 dB).
Public propertyLocationPoint
Gets or sets the time-varying location of this platform.
(Inherited from Platform.)
Public propertyName
Gets or sets the name of the platform.
(Inherited from Platform.)
Public propertyNavigationSatellites
Gets a collection of platforms that contain the IGpsPrnService, INavigationTransmitterService and IGpsSatelliteOutageService.
Public propertyNoiseFactor
Gets or sets the NoiseFactor this front end uses to calculate noise on the navigation signals. The default value is 1.995... (3 dB).
Public propertyOrientationAxes
Gets or sets the time-varying orientation of this platform.
(Inherited from Platform.)
Public propertyParent
Gets the parent platform of this platform.
(Inherited from Platform.)
Public propertyPolarization
Gets or sets the polarization.
Public propertyPostLnaGain
Gets or sets the gain of the cabling after the Low Noise Amplifier (LNA). The default is 0.1 (-10 dB).
Public propertyPreLnaGain
Gets or sets the gain of the cabling and filtering prior to reaching the Low Noise Amplifier (LNA). The default is 0.7943... (-1 dB).
Public propertyReceiverAntennaGainPattern
Gets or sets the front end's antenna gain pattern. The default is a FrpaGainPattern using the default AntennaEfficiency value.
Public propertyReceiverOperatingTemperature
Gets or sets the ambient temperature where the receiver is operating, in kelvin. The default is 290.0 K.
Public propertyReferenceFrame
Gets the reference frame of this platform formed by the combination of the platform's location and orientation.
(Inherited from Platform.)
Public propertySignalPropagationModels
Gets an IList of SignalPropagationModels that define the propagation environment for the Gps signals.
Public propertySignalsToTrack
Gets a collection of NavigationSignals that define what each NavigationReceiverChannel will track.
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Methods
  NameDescription
Protected methodCheckForSameDefinition(DefinitionalObject)
Checks to determine if another instance has the same definition as this instance and returns if it does. Derived classes MUST override this method and check all new fields introduced by the derived class for definitional equivalence. It is NOT necessary to check base class fields because the base class will already have done that. When overriding this method, you should NOT call the base implementation because it will return for all derived-class instances. Derived classes should check the type of other to preserve the symmetric nature of IsSameDefinition(Object).
(Inherited from ExtensibleObject.)
Protected methodCheckForSameDefinition(ExtensibleObject)
Checks to determine if another instance has the same definition as this instance and returns if it does. Derived classes MUST override this method and check all new fields introduced by the derived class for definitional equivalence. It is NOT necessary to check base class fields because the base class will already have done that. When overriding this method, you should NOT call the base implementation because it will return for all derived-class instances. Derived classes should check the type of other to preserve the symmetric nature of IsSameDefinition(Object).
(Inherited from Platform.)
Protected methodCheckForSameDefinition(GpsCommunicationsFrontEnd)
Checks to determine if another instance has the same definition as this instance and returns if it does. Derived classes MUST override this method and check all new fields introduced by the derived class for definitional equivalence. It is NOT necessary to check base class fields because the base class will already have done that. When overriding this method, you should NOT call the base implementation because it will return for all derived-class instances. Derived classes should check the type of other to preserve the symmetric nature of IsSameDefinition(Object).
Protected methodCheckForSameDefinition(Platform)
Checks to determine if another instance has the same definition as this instance and returns if it does. Derived classes MUST override this method and check all new fields introduced by the derived class for definitional equivalence. It is NOT necessary to check base class fields because the base class will already have done that. When overriding this method, you should NOT call the base implementation because it will return for all derived-class instances. Derived classes should check the type of other to preserve the symmetric nature of IsSameDefinition(Object).
(Overrides PlatformCheckForSameDefinition(Platform).)
Public methodClone
Clones this object using the specified context.
(Overrides PlatformClone(CopyContext).)
Protected methodComputeCurrentDefinitionHashCode
Computes a hash code based on the current properties of this object. Derived classes MUST override this method and compute a hash code that combines: a unique hash code seed, the base implementation result, and the hash codes of all new fields introduced by the derived class which are used in the CheckForSameDefinition(DefinitionalObject) method.
(Overrides PlatformComputeCurrentDefinitionHashCode.)
Public methodEnumerateDependencies
Enumerates the dependencies of this object by calling EnumerateT(T) for each object that this object directly depends upon. Derived classes which contain additional dependencies MUST override this method, call the base implementation, and enumerate dependencies introduced by the derived class.
(Overrides PlatformEnumerateDependencies(DependencyEnumerator).)
Public methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Protected methodFinalize
Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
(Inherited from Object.)
Public methodFreeze
Freezes this object. Further attempts to modify it will result in an ObjectFrozenException.
(Inherited from DefinitionalObject.)
Protected methodFreezeAggregatedObjects
Called by Freeze to also freeze any objects that are considered to be a part of this object. Derived classes which contain additional aggregated objects MUST override this method, call the base implementation, and freeze aggregated objects introduced by the derived class. The objects that need to be frozen in this method are frequently created in this object's constructor and are not settable via properties.
(Inherited from Platform.)
Public methodGetAllLinkBudgets
Gets the GNSS link budgets for all satellites.
Public methodGetDefinitionHashCode
Gets a hash code representing the definition of this object.
(Inherited from DefinitionalObject.)
Public methodGetFrontEndSignalPropagationGraph
Gets the SignalPropagationGraph created by this GpsCommunicationsFrontEnd.
Public methodGetHashCode
Serves as the default hash function.
(Inherited from Object.)
Public methodGetNavigationReceiverAccessQuery
Communication-based access query for a single NavigationReceiverChannel which determines access based on all signals defined in the GpsSignalConfiguration.
Public methodGetReceiverChannels
Gets the collection of NavigationReceiverChannels used in this receiver.
Public methodGetSatelliteLinkBudgets
Gets GNSS link budgets for a specific satellite identified by satelliteID. A collection of GnssLinkBudgetScalars containing link budgets for each signal tracked by the receiver's channel.
Public methodGetService
Gets the service object of the specified type.
(Inherited from Platform.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Public methodIsSameDefinition
Determines if this object has the same definition as another object.
(Inherited from DefinitionalObject.)
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Protected methodThrowIfFrozen
Throws ObjectFrozenException if this object IsFrozen. This method should be called from any method or property that modifies this object.
(Inherited from DefinitionalObject.)
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
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See Also