光子学报, 2009, 38 (12): 3116, 网络出版: 2010-05-10
闪电成像仪虚警率和探测率模拟计算
Simulating Calculation of Lightning Detection Efficiency and False Alarm Rate for Lightning Imagery on Geo-satellite
关键词：卫星闪电成像仪 探测率 虚警率 阈值 信噪比 Lightning imagery Lightning detection efficiency(LDE) False alarm rate (FAR) Threshold Signal-to-noise ratio (SNR).
摘要
在明确虚警率和探测率概念基础上，建立了虚警率和探测率与信噪比之间相互关系的定量模型，通过模拟计算给出信噪比对虚警率和探测率的影响.计算结果表明：要使虚警率控制在10%以内，信噪比应该达到5.0以上; 要使探测率达到90%，信噪比应该达到5.2~5.7.
Abstract
Based on the clear define of lightning dectection efficiency and false alarm rate,and quantitative models is built to illuminate the influence of signal-to-noise ratio on LDE and FAR. Simulating calculation results show that to control FAR below 10%,the signal-to-noise ratio should be as big as 5.0 at least;and to keep LDE 90%,the signal-to-noise ratio should be between 5.2 to 5.7.
黄富祥, 郭俊柏, 冯小虎. 闪电成像仪虚警率和探测率模拟计算[J]. 光子学报, 2009, 38(12): 3116. HUANG Fu-xiang, GUO Jun-bai, FENG Xiao-hu. Simulating Calculation of Lightning Detection Efficiency and False Alarm Rate for Lightning Imagery on Geo-satellite[J]. ACTA PHOTONICA SINICA, 2009, 38(12): 3116.
PDF全文
