Visual Second-order Diffraction

Ville Pulkki
Laboratory of Acoustics and Audio Signal Processing
Helsinki University of Technology


Second-order diffraction in different cases is visualized in this page. The geometry has been computed with DIVA software, and with P. Svensson's diffraction toolbox and visualized with MATLAB software.



Direct sound and edge diffraction from top edge.


Direct sound, first-order diffraction from top edge, and second order diffraction having propagation path [sound source] - [right edge] - [top edge] - [receiver].



One more second-order propagation path added.






All first- and second-order edge image sources, receiver in front.

Illustation of first- and second-order image sources with different receiver angles.

Back to visual diffraction main page.

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Last modified: 20.02.2003
Author: <Ville.Pulkki@hut.fi>