A systematic approach is presented for the sampling and interpolation over sun path. The annual sun path is described in terms of the ecliptic longitude and hour angle so that all possible positions of the sun are mapped on a rectangular domain. This enables the use of many efficient algorithms, and the bicubic interpolation with Catmull–Rom splines is proposed. It is shown that a sufficiently good accuracy can be achieved with as little as 32 sampling points for a year.
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Research Article| May 31 2016
Fourier sampling of sun path for applications in solar energy
AIP Conf. Proc. 1734, 020008 (2016)
Victor Grigoriev, Clotilde Corsi, Manuel Blanco; Fourier sampling of sun path for applications in solar energy. AIP Conf. Proc. 31 May 2016; 1734 (1): 020008. https://doi.org/10.1063/1.4949032
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