BeerLambertLawAtmosphericAttenuationModel Class

An atmospheric absorption model based on the Beer-Lambert Law.

Inheritance Hierarchy

SystemObject
  AGI.Foundation.InfrastructureDefinitionalObject
    AGI.Foundation.Communications.SignalPropagationSignalPropagationModel
      AGI.Foundation.Communications.SignalPropagationBeerLambertLawAtmosphericAttenuationModel

Namespace: AGI.Foundation.Communications.SignalPropagation
Assembly: AGI.Foundation.Communications (in AGI.Foundation.Communications.dll) Version: 24.3.420.0 (24.3.420.0)

Syntax

C++

Copy

public class BeerLambertLawAtmosphericAttenuationModel : SignalPropagationModel

Public Class BeerLambertLawAtmosphericAttenuationModel
	Inherits SignalPropagationModel

public ref class BeerLambertLawAtmosphericAttenuationModel : public SignalPropagationModel

type BeerLambertLawAtmosphericAttenuationModel =  
    class
        inherit SignalPropagationModel
    end

The BeerLambertLawAtmosphericAttenuationModel type exposes the following members.

Constructors

	Name	Description
	BeerLambertLawAtmosphericAttenuationModel	Initializes a new instance.
	BeerLambertLawAtmosphericAttenuationModel(BeerLambertLawAtmosphericAttenuationModel, CopyContext)	Initializes a new instance as a copy of an existing instance.
	BeerLambertLawAtmosphericAttenuationModel(SignalComputation, Double, CentralBody)	Initializes a new instance with given extinction coefficient model, maximum altitude, and central body.

Top

Properties

	Name	Description
	CentralBody	Gets or sets the central body.
	ExtinctionCoefficientModel	Gets or sets the model for calculating the extinction coefficient.
	IsFrozen	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.)
	MaximumAltitude	Gets or sets the maximum altitude in meters.

Top

Methods

	Name	Description
	CheckForSameDefinition(BeerLambertLawAtmosphericAttenuationModel)	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).
	CheckForSameDefinition(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 SignalPropagationModel.)
	CheckForSameDefinition(SignalPropagationModel)	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 SignalPropagationModelCheckForSameDefinition(SignalPropagationModel).)
	Clone	Clones this object using the specified context. (Overrides DefinitionalObjectClone(CopyContext).)
	ComputeCurrentDefinitionHashCode	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 SignalPropagationModelComputeCurrentDefinitionHashCode.)
	EnumerateDependencies	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 DefinitionalObjectEnumerateDependencies(DependencyEnumerator).)
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	Freeze	Freezes this object. Further attempts to modify it will result in an ObjectFrozenException. (Inherited from DefinitionalObject.)
	FreezeAggregatedObjects	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 DefinitionalObject.)
	GetDefinitionHashCode	Gets a hash code representing the definition of this object. (Inherited from DefinitionalObject.)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetSignalPropagator	Get a propagator which can propagate a signal along the given communication link. (Overrides SignalPropagationModelGetSignalPropagator(EvaluatorGroup, IServiceProvider).)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	IsSameDefinition	Determines if this object has the same definition as another object. (Inherited from DefinitionalObject.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ThrowIfFrozen	Throws ObjectFrozenException if this object IsFrozen. This method should be called from any method or property that modifies this object. (Inherited from DefinitionalObject.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

Top

Remarks

The receive power is modeled using the equation Pr = Pt * exp(-alpha * L) where Pt is the transmit power, alpha is the wavelength dependent extinction coefficient, and L is the path length. The model computes up to a user selectable maximum altitude. If either the transmitter or receiver is above the maximum altitude, the path length is computed from the point where the line of sight vector, between the transmitter and receiver objects, intersects the maximum altitude to the object (transmitter or receiver) which resides below the maximum altitude. If both transmitter and receiver reside below the maximum altitude, the path length is the line of sight distance between the transmitter and receiver.

This is the Beer-Lambert Law atmospheric absorption model taken from chapter 3 page 107 of "Optical Wireless Communications - System and Channel Modeling with MATLAB" by Z. Ghassemlooy, W. Popoola, and S. Rajbhandari.

Reference

AGI.Foundation.Communications.SignalPropagation Namespace