| 闪电成像仪虚警率和探测率模拟计算 |
| |
| 引用本文： | 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) |
| |
| 作者姓名： | 黄富祥 郭俊柏 冯小虎 |
| |
| 作者单位： | 1. 国家卫星气象中心,北京,100081
2. 中国地质大学信息工程学院,北京,100083 |
| |
| 基金项目： | 国家高技术研究发展计划，公益性气象行业专项 |
| |
| 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.
|
| 关 键 词： | 关键词 卫星闪电成像仪 探测率 虚警率 阈值 信噪比 |
Simulating Calculation of Lightning Detection Efficiency and False Alarm Rate for Lightning Imagery on Geo-satellite |
| |
| 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) |
| |
| Authors: | HUANG Fu-xiang GUO Jun-bai FENG Xiao-hu |
| |
| 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. |
| |
| Keywords: | Lightning imagery Lightning detection efficiency(LDE) False alarm rate (FAR) Threshold Signal-to-noise ratio (SNR) |
| 本文献已被 万方数据 等数据库收录！ |
|
