Speaker
Description
The simulation of urban environments poses challenges for geometric propagation models.In these scenarios, diffraction is a significant contribution to sound propagation.The image edge model was proposed as an efficient method to determine diffraction paths.In combination with the Unified Theory of Diffraction (UTD), it can be used to calculate the diffraction contribution to sound propagation.However, the accuracy of this approach has not been thoroughly validated.In this work, a more comprehensive validation of this simulation approach is performed.For this, a larger database of scale-model measurements specifically designed for urban environments with various building configurations and source-receiver placements is used, which focuses on diffraction.Initial results show good agreement between the simulation and measurements, indicating that the image edge model combined with the UTD can provide accurate predictions of sound propagation in urban environments.