The meaning of the signals "Cloud detection", "Cloud distance to Sun" and "Start power reduction" is the same as in Figures 8 and 9. Sensors 2017, 17, 1116 Sensors 2017, 17, 1116 Sensors 2017, 17, 1116 15 of 20 14 of 19 14 of 19 FdFtFdoiiiiiggsgsSttuuuuaarrrnnneeecc"AeeAAatt...