Title :
Chirp sine and cosine transforms for a split-step propagation algorithm
Author :
Kajenski, Peter J.
Author_Institution :
Raytheon Co., Integrated Defense Syst., Andover, MA
Abstract :
Split-step propagation algorithms are widely used to model the propagation of fields in complex environments. Typically one of the slowest steps in such an algorithm is the computation of the forward and inverse transforms. Chirp versions of the sine and cosine transforms were derived, to allow modification of the number of points used in the transforms according to the detail needed in a particular region.
Keywords :
discrete cosine transforms; fast Fourier transforms; radiowave propagation; chirp sine-cosine transforms; forward transforms; inverse transforms; split-step propagation algorithm; Chirp; Computational modeling; Diffraction; Discrete cosine transforms; Discrete transforms; Fast Fourier transforms; Kernel; Partial differential equations; Radar applications; Spirals;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2041-4
Electronic_ISBN :
978-1-4244-2042-1
DOI :
10.1109/APS.2008.4619008
