I'm an older engineer, rusty on math, building a complex sensor to characterize Sun's energy at solar power arrays.
It is an assembly of 9 sensors, mounted on a funnel; with one pointing straight up, 8
Others spread evenly in 8 directions, tilted at 30 degree above horizon. One points due
I'm struggling with vector formula giving a summation of dot-ptoducts of these 8 directional
Signals with the normal vector of the solar panel, which is specified with azimuth and tilt angle.
Thanks for any assistance, or suggestion.