Having photo-diodes with a very narrow field of view (+-10 degrees for half power) what should I consider when designing a beam-forming algorithm?
I know that I could use many photo-diodes mounted in an arc to cover 180 degrees for example but the uncertainty of 10 degrees is too big. As an alternative to classical beam-forming, what would be the methods to use to isolate a signal coming from one direction with a high precision (under 1 degree)?
My goal is to analyze the flickering of lamps, knowing their position from analyzing camera data, I want to isolate the signal coming from their direction.