Huiting Gao, Shulong Bao, Hua Liang, Fuxiang Huang. Filtering Algorithm for Nonlightning Events Using the FY-4 Lightning Mapping Imager[J]. Acta Optica Sinica, 2021, 41(9): 0911001
- Acta Optica Sinica
- Vol. 41, Issue 9, 0911001 (2021)
Fig. 1. Measured true signals and ghosts in laboratory measurement
Fig. 2. On-orbit examples of signals and ghosts. (a) Example 1; (b) example 2
Fig. 3. Trajectory noise of on-orbit high energy particles
Fig. 4. Maximum number of output events in each sub-area
Fig. 5. Flowchart of cluster process of lightning events
Fig. 6. Result of lightning cluster
Fig. 7. On-board results of lightning monitor and process. (a) Detection result of lighting event; (b) result after nonlightning events filtering
Fig. 8. Contrast of lightning detection by LMI and LAND every 1 h. (a) LMI; (b) LAND
Fig. 9. Change of number of events by time
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Table 1. Position and D of on-orbit lightning signal and ghost
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Table 2. Filtering result of false lightning event
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