GNSS-R信号测量海面有效波高的应用  

Application of significant wave height measurement using GNSS-R signals

作　　者：尹聪[1] 曹云昌[2] 朱彬[1] 李明里[3] 吴红甲[3] 吕卫华 詹国伟 

机构地区：[1]南京信息工程大学,江苏南京210044 [2]中国气象局气象探测中心,北京100081 [3]北京航空航天大学,北京100081 [4]广东省茂名市气象局,广东茂名525000

出　　处：《热带海洋学报》2012年第6期36-40,共5页Journal of Tropical Oceanography

基　　金：总装备部中国第二代卫星导航系统应用重大专项(GFZX03030303)

摘　　要：全球导航卫星系统反射信号GNSS-R(Global Navigation Satellite System Reflection)可以用来探测海面状态,如海面有效波高。介绍了利用GNSS反射信号测量海面有效波高的观测设备和技术原理,对2009年博贺实验的数据进行了分析,证实了反射信号相关复数场的有效相关时间与有效波高之间存在相关,利用前期观测的数据进行拟合,得出反演公式,并与测波雷达数据进行了结果对比,平均误差0.136m,相对偏差12.02%,均方根偏差0.169m。Global Navigation Satellite System（GNSS） reflection signals could be used for sea-state sounding,for instance,the significant wave height.This paper introduced the observation equipment and the technical principle about the significant wave height sounding by GNSS reflected signals.By analyzing the data from Bohe experiment during 2009,we confirmed that the significant wave height was related to the significant coherence time of the interferometric complex field.An inversion formula was obtained by fitting the prophase data,and the results were compared with the data from Wave Monitoring System.The average deviation is 0.136 m with the relative standard deviations of 12.02%,and the root-mean-square error is 0.169 m.

关 键 词：全球定位系统 反射信号 有效波高 

分 类 号：P731[天文地球—海洋科学]