Title :
The Ludwig integration algorithm for triangular subregions
Author :
Pogorzelski, Ronald J.
Author_Institution :
TRW Space and Technology Group, Redondo Beach, CA, USA
fDate :
4/1/1985 12:00:00 AM
Abstract :
The well-known Ludwig algorithm for numerical treatment of integrals with oscillatory integrands using rectangular subregions is modified so as to make use of triangular subregions. Algebraic expressions are given suitable for programming into a numerical integration subroutine. All of the advantages of the Ludwig scheme are retained.
Keywords :
Algorithms; Apertures; Least squares approximation; Linear approximation; Optical computing; Physical optics; Physics computing; Reflector antennas; Sampling methods; Space technology;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1985.13204
