Spaceborne GNSS-Reflectometry on TechDemoSat-1: Early Mission Operations and Exploitation
Spaceborne GNSS-Reflectometry on TechDemoSat-1: Early Mission Operations and Exploitation
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DOI：
10.1109/jstars.2016.2603846
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发表时间：
2016-10
影响因子：
5.5
通讯作者：
M. Unwin;P. Jales;Jason Tye;C. Gommenginger;G. Foti;J. Rosello
中科院分区：
文献类型：
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作者：
M. Unwin;P. Jales;Jason Tye;C. Gommenginger;G. Foti;J. Rosello
GNSS反射法是一种新技术，有望用于许多地球观测应用，包括海洋，陆地和冰的遥感。已开发出一种体积小、功率小、适合在小型卫星上使用的有效载荷。SGR-ReSI全球导航卫星系统反射仪的首次飞行是在2014年7月发射的TechDemoSat-1使命上进行的。该仪器自2014年9月投入使用以来一直在运行，并定期收集许多不同表面的延迟多普勒图。已开展初步工作，根据ASCAT测量结果开发和验证风速反演算法，并取得了可喜的成果。陆地和海冰上的测量也显示出有趣的地球物理特征。本文描述了仪器、早期操作、通过卫星测量地球反射无线电导航信号（MERRByS）网站的数据传播以及为进一步数据开发做准备的初步数据评估。
GNSS-Reflectometry is a new technique that shows promise for many earth observation applications including remote sensing of oceans, land, and ice. A payload has been developed that is low size and power, and suitable for use on small satellites. The first flight of the SGR-ReSI GNSS Reflectometry Instrument is on the TechDemoSat-1 mission, launched in July 2014. The instrument has been operational since its commissioning in September 2014, and has been collecting delay Doppler maps routinely over many different surfaces. Preliminary work has been undertaken to develop and validate wind speed inversion algorithms against ASCAT measurements with promising results. Measurements over land and sea ice are also showing interesting geophysical characteristics This paper describes the instrument, early operations, data dissemination through the Measurement of Earth Reflected Radio-navigation Signals By Satellite (MERRByS) website and preliminary data assessments in preparation for further data exploitation.