STK Components for .NET 2021 r1

## PointScattererExtensionGetSignalTransmissionEvaluator Method |

Get an evaluator which can produce a reflected signal which is the incident signal multiplied by the scattering
coefficient computed for the incident and reflected link geometry.

Syntax

public SignalEvaluator GetSignalTransmissionEvaluator( EvaluatorGroup group, Vector reflectedVector, SignalPropagationGraph graph )

- group
- Type: AGI.FoundationEvaluatorGroup

The evaluator group in which to create the evaluator. - reflectedVector
- Type: AGI.Foundation.GeometryVector

The vector in the direction of the reflected signal with respect to the point scatterer. - graph
- Type: AGI.Foundation.CommunicationsSignalPropagationGraph

The graph of the communication links used to propagate signals.

The evaluator which produces the reflected signal.

Exceptions

Exception | Condition |
---|---|

PropertyInvalidException | Thrown if the FrequencyBands collection has a count of 0. This exception is also thrown if the FrequencyBands collection does not have a PointScattererFrequencyBand with a LowerFrequency equal to the configured minimum frequency of the FrequencyBands collection. |

Remarks

This method can return an evaluator constructed in one of two different ways based on the type of
SignalPropagationGraph which is passed as the graph parameter. If the graph parameter instance provides the
ISignalPropagationPathService from a call to the instance GetService method, the evaluator will be constructed
such that it pulls the incident signal from the link in the graph provided by the
FindLinkForReceiver(IServiceProvider), where the receive node is the point scatterer extension's
owning ExtensibleObject. If the graph supplies the ISignalPropagationPathService, but a call to FindLinkForReceiver
returns null, an InvalidOperationException will be thrown. If the graph parameter instance does not provide the
ISignalPropagationPathService, then the evaluator returned will try to pull the incident signals for all links in the graph for
which the point scatterer extension's owning ExtensibleObject is the receive node. If no links are found an
InvalidOperationException will be thrown.

See Also