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Tsunami detection based on noisy sea surface height measurement

机译:基于嘈杂海面高度测量的海啸检测

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This paper presents an approach for the detection of early weak Tsunami in presence of large noise in sea surface height (SSH) measurements obtained such as using a satellite-carried global navigation satellite system (GNSS) receiver and the GNSS reflectometry (GNSS-R) technique. A sliding window moving average (SWMA) technique is proposed for detecting a Tsunami lead wave and a hypothesis testing method is developed to decide whether or not a Tsunami is present by examining the SWMA outputs against a predefined threshold. The proposed approach is evaluated using the 2011 Japan's Tsunami data collected by altimetry satellite Jason-1. Simulation results demonstrate that the proposed detect method considerably outperforms the existing methods.
机译:本文提出了一种在海面高度(SSH)测量中存在大噪声的情况下检测早期弱海啸的方法,该测量方法是使用卫星携带的全球导航卫星系统(GNSS)接收器和GNSS反射仪(GNSS-R)技术。提出了一种滑动窗口移动平均值(SWMA)技术来检测海啸超前波,并开发了一种假设测试方法,通过对照预定阈值检查SWMA输出来确定是否存在海啸。拟议的方法是使用测高卫星Jason-1收集的2011年日本海啸数据进行评估的。仿真结果表明,所提出的检测方法明显优于现有方法。

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