Simulation and Analysis of GOES-R Geostationary Lightning Mapper Detection Algorithm Performance
The simulated false events only included electronic noise and background shot noise – the effects of radiation, CCD charge transfer efficiency, spacecraft jitter, and glint were not considered in this analysis. The test data contained an average of 40,000 false events per second. Threshold filter simulation involved mapping simulated event coordinates to a GOES image and using the background signal to determine threshold levels per event. The coherency filter simulation involved testing the spatial, temporal, and maximum false probability relations between events on a frame-by-frame basis to categorize events as coherent or incoherent. A worst case lightning detection rate of 74% was observed with a false alarm rate of 0.7 false flashes per second.