Compute the cross-power spectral density of two complex functions for a single spherical harmonic degree.
cpsd = SHCrossPowerDensityLC (cilm1, cilm2, l)
cpsd : output, complex*16
: The cross-power spectral density of the two complex functions for spherical harmonic degree l.
cilm1 : input, complex*16, dimension (2, lmaxin1+1, lmaxin1+1)
: The first complex function expressed in complex spherical harmonics.
cilm2 : input, complex*16, dimension (2, lmaxin2+1, lmaxin2+1)
: The second complex function expressed in complex spherical harmonics.
l : input, integer
: The spherical harmonic degree. This must be less than or equal to the minimum of lmaxin1 and lmaxin2.
SHCrossPowerDensityLC will calculate the cross-power spectral density of two complex functions expressed in complex spherical harmonics for a single spherical harmonic degree l. This is calculated as:
cpsd = Sum_{i=1}^2 Sum_{m=0}^l cilm1(i, l+1, m+1) * conjg[cilm2(i, l+1, m+1)] / (2l + 1).
shpowerlc, shpowerdensitylc, shcrosspowerlc, shpowerspectrumc, shpowerspectrumdensityc, shcrosspowerspectrumc, shcrosspowerspectrumdensityc