For all output SNR levels, the number of false-alarms remains approximately constant at a value of 10. While constancy is expected from detection theory, this value is much lower than one might expect for a 2.5% false-alarm rate. The 100 events were seeded at 2 second intervals into a 200 second long data set sampled at 4 ms. In the triggering routine, the event window moves forward sample by sample.
Thus, we examine 50,000 potential triggers and should expect 1250 false-alarms in the triggering phase. However, the 10 false-alarms shown in Figure 1 are those that were triggered but also passed the event localization step. Part of the event localization step is a requirement that the triggers show consistency over the time/depth trade-off trajectory. If the algorithm fails to find this consistency, the trigger is discarded. Thus we add further constraint against false-alarms.

Букафф много, но прошу помочь. Меня интересует, что в данном контексте означает слово trigger!! Это инициирующее действие?? Возбуждение пласта?? Или трещина??

И не понятно предложение Part of the event localization step is a requirement that the triggers show consistency over the time/depth trade-off trajectory.

Мой вариант: Одним из требований этапа определения местоположения сейсмических событий является необходимость единообразия инициирующих действий ...... ??

Заранее благодарен.