一种新型星载GNSS-R系统的地面验证实验  

A Ground Experiment to Demonstrate a New Satellite-based GNSS-R System

作　　者：张勇[1,2,3] 符养 李烨 白伟华[5] 张训械[6] 

机构地区：[1]中国科学院大气物理研究所,北京100029 [2]中国科学院研究生院,北京100039 [3]北京应用气象研究所,北京100029 [4]中国航天恒星科技有限公司,北京100086 [5]中国科学院空间科学与应用研究中心,北京100190 [6]中国科学院武汉物理与数学研究所,湖北武汉430071

出　　处：《海洋测绘》2013年第1期18-21,25,共5页Hydrographic Surveying and Charting

摘　　要：利用全球导航卫星系统的反射信号GNSS-R(global navigation satellite system-reflection)对海洋进行观测,目前已经成为一种新型遥感手段。介绍了一种最新研制的GNSS-R系统,以及使用该系统在北京怀柔水库开展的GNSS-R岸基测高实验。实验的目的,是在理想的湖面条件下验证系统的性能和检验测高算法的精度。实验得出:该系统能够在天线各阵元组合情况下实现GPS-R(global position system-reflection)信号的接收和处理;在把反演结果平均到1h后,使用C/A码的测高精度可达分米数量级。Ocean observation with the reflected signals received from GNSS already has become a new type of remote sensing tool. The paper describes a newly developed GNSS-R system, and a shore-based altimetry experiment in Huairou Reservoir lake of Beijing using data received by the system. Objective of the experiment is to demonstrate performance of the system and estimate altimetry accuracy of retrieval method in the perfect lake conditions. Results of the experiment show that the system can receive and process GPS-reflected data using several combinations of antenna elements, and the accuracy of the one hour average retrieval result with C/A code is up to decimeter.

关 键 词：全球导航卫星系统反射信号 岸基测高 GPS C A码 

分 类 号：P228.4[天文地球—大地测量学与测量工程]