面向遥感的GNSS反射信号接收处理系统及实验  

Design and Experiments of GNSS-R Receiver System for Remote Sensing

作　　者：李伟强[1] 杨东凯[1] 李明里[1] 张其善[1] 

机构地区：[1]北京航空航天大学电子信息工程学院,北京市学院路37号100083

出　　处：《武汉大学学报（信息科学版）》2011年第10期1204-1208,共5页Geomatics and Information Science of Wuhan University

基　　金：国家863计划项目资助(2007AA12Z340)

摘　　要：提出了一种新的GNSS-R信号接收处理系统(GNSS-Rreceiver system,GRrSv.2)的结构及信号处理方法。该系统可同时针对直射和反射的GNSS信号协同处理,并输出可配置延迟和多普勒的二维相关值矩阵。为了验证系统的性能,进行了针对海洋和陆地遥感的机载和岸基验证实验,并给出了初步的实验结果。Earth-Reflected GNSS（Global Navigation Satellite Systems） signals have become an attractive tool for remote sensing.This brings out the need of signal receiver systems to process this kind of signals.This paper describes the architecture and signal processing issues of a new GNSS-R receiver system（GRrSv.2） that features enhanced capabilities for remote sensing based on reflected Global Positioning System（GPS） signals.The GRrSv.2 can process both GPS L1-C/A direct signals and reflections.Aircraft and land based verification experiments for both ocean and land reflections have been performed and some primary results are presented in this paper.

关 键 词：GNSS 反射 遥感 接收机 延迟-多普勒相关值 土壤湿度 

分 类 号：P228.42[天文地球—大地测量学与测量工程] P229.2[天文地球—测绘科学与技术]