对地观测技术遥感应用辐射探测全球导航卫星系统(Global Navigation Satellite System,GNSS)为用户提供了位置,速度及时间服务,已被广泛地应用于交通,农业,安全等领域.随着无线电技术发展以及低成本,高密度对地观测需求的增长,地表反射的GNSS信号作为一种新型的遥感源被用于地表物理参数的探测.该技术被称为GNSS-Reflectometry...
GNSS Reflectometry (GNSS-R) involves making measurements of the reflections from the Earth using navigation signals from the Global Navigation Satellite Systems (GNSS). The technique is similar to that used by both existing altimeter and scatterometer radar satellites, but eliminates the need for dedic...
摘要:全球卫星导航系统干涉测量法(GNSS-interferometric reflectometry, GNSS-IR)是一种新兴对地观测遥感技术, 利用该方法能实现土壤湿度监测, 具有很高的应用潜力。针对土壤湿度反演的建模问题, 本文构建一种集成粒子群优化算法(particle swarm...
GPS反射测量是由欧空局(ESA)Martin Neira[1]于1993年首次提出来,即GPS地表反射信号和直射信号一起被接收机接收,它们之间延迟可以用于干涉测量,即PARIS(passive reflectometry and interferometry system)。1994年,法国科学家通过进行飞行试验发...
New Progress and Application Prospects of Global Navigation Satellite System Reflectometry (GNSS+R) JIN Shuanggen1, ZHANG Qinyun1,2, QIAN Xiaodong1,3 PDF 3184 被引次数 12 摘要/Abstract 摘要:全球导航卫星系统(GNSS)具有全天候、近实时、高精度的特点,可持续发射L波段信号,广泛应用于定位、导航和授时(PN...
全球导航卫星系统反射信号遥感(Global Navigation Satellite System-reflectometry,GNSS-R),正是一种利用卫星导航系统的反射信号来进行地球观测的技术。简单来说,这种技术的工作原理就是借助现有的导航卫星,比如我国的北斗导航系统,美国的GPS等,获取它们发射的无线电信号在地表或海面的反射,然后通过分析这些反射信号来提取出...
天津大学博士生李峰辉团队自主研发国内首颗商业星载GNSS-R(Global Navigation Satellite System Reflectometry )海洋反射探测载荷搭载吉林一号宽幅01B卫星顺利发射。受访者供图 GNSS-R技术是一种被动式的探测技术,它不需要单独的信号源发射机,仅仅需要在载体平台上安装GNSS-R海洋反射探测载荷,利用导航卫星的反射信号来...
cryosphere are given and reviewed in details. Meanwhile, the challenges in the GNSS-R development of each field are also given. Finally, the future applications and prospects of GNSS-R are discussed, including multi-GNSS reflectometry, new GNSS-R receivers, GNSS-R missions, and emerging ...
Abstract: In order to extend the applications GNSS-R/IR(GNSS-reflectometry/interferometric reflectometry) remote sensing technique to soil freeze/thaw process detection, soil(frozen/thawn) mixing permittivity models are employed...