We present an efficient algorithm for the tracing of multiply edge diffracted rays. The algorithm assumes a given sequence of infinite edges and complete visibility among them. The ray tracing problem is formulated as the minimization of the ray total path length. Since such a cost function is strictly convex, except for coplanar edges in the plane-wave far-field regime, then the problem admits a unique global minimum and allows the use of a modified Newton search algorithm, which exhibits a very high converging rate.We also propose a convenient starting point to effectively initialize the minimization algorithm. The proposed algorithm is tested by some numerical examples that show its efficiency and effectiveness.

G., C., & Albani, M. (2008). An Efficient Ray Tracing Algorithm for Multiple Straight Wedge Diffraction. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 56(11), 3534-3542 [10.1109/TAP.20082005540].

An Efficient Ray Tracing Algorithm for Multiple Straight Wedge Diffraction

ALBANI, MATTEO
2008

Abstract

We present an efficient algorithm for the tracing of multiply edge diffracted rays. The algorithm assumes a given sequence of infinite edges and complete visibility among them. The ray tracing problem is formulated as the minimization of the ray total path length. Since such a cost function is strictly convex, except for coplanar edges in the plane-wave far-field regime, then the problem admits a unique global minimum and allows the use of a modified Newton search algorithm, which exhibits a very high converging rate.We also propose a convenient starting point to effectively initialize the minimization algorithm. The proposed algorithm is tested by some numerical examples that show its efficiency and effectiveness.
G., C., & Albani, M. (2008). An Efficient Ray Tracing Algorithm for Multiple Straight Wedge Diffraction. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 56(11), 3534-3542 [10.1109/TAP.20082005540].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11365/44039
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