First In-Orbit Validation of Interferometric GNSS-R Altimetry: Mission Overview and Initial Results
Remote SensingSea surface height (SSH) serves as a fundamental geophysical parameter in oceanographic research. In 2023, China successfully launched the world’s first spaceborne interferometric GNSS-R (iGNSS-R) altimeter, which features dual-frequency multi-beam ...
Yixuan Sun +16 more
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Active microwave sensor technology, chapter 5 [PDF]
The relationship between surface properties and echo characteristics, as determined by radar technology, is discussed; echo enhancement to reduce measurement uncertainty was included.
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Comparison of wind speed measurements over the oceans with the Special Sensor Microwave/Imager and the Geosat altimeter [PDF]
In order to compare wind speed estimates from the Geosat altimeter and the Special Sensor Microwave/Imager (SSM/I), 25 colocated passes, within 2 hours of each other, were selected and the SSM/I estimates of wind speed and atmospheric parameters ...
Katsaros, Kristina B., Mognard, Nelly M.
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A ground track control algorithm for the Topographic Mapping Laser Altimeter (TMLA) [PDF]
The results of an analysis of an algorithm that will provide autonomous onboard orbit control using orbits determined with Global Positioning System (GPS) data.
Blaes, V. +3 more
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Remote SensingFull tensor of gravity gradients contains extremely large amounts of information, which is one of the most important sources for research on recovery seafloor topography and underwater matching navigation.
Hengyang Guo +3 more
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Airborne laser topographic mapping results from initial joint NASA/US Army Corps of Engineers experiment [PDF]
Initial results from a series of joint NASA/US Army Corps of Engineers experiments are presented. The NASA Airborne Oceanographic Lidar (AOL) was exercised over various terrain conditions, collecting both profile and scan data from which river basin ...
Butler, M. L. +3 more
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Meteorological satellites [PDF]
An overview is presented of the meteorological satellite programs that have been evolving from 1958 to the present, and plans for the future meteorological and environmental satellite systems that are scheduled to be placed into service in the early 1980'
Allison, L. J. +5 more
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Satellite altimeters after Skylab and GEOS-C - should they utilize a single transmitter or an array of pulsed amplifiers? [PDF]
, 1972 An attempt was made to determine if future satellite altimeters, operating at K-band, should use a single transmitter or an array of pulsed amplifiers. The two systems were compared as a function of reliability, power, service life, system requirements ...
Greene, A. H., Hudson, E. F.
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Guidelines for spaceborne microwave remote sensors [PDF]
A handbook was developed to provide information and support to the spaceborne remote sensing and frequency management communities: to guide sensor developers in the choice of frequencies; to advise regulators on sensor technology needs and sharing ...
Litman, V., Nicholas, J.
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Fundamentals of Earth Observation Policy: Examples for German and European Missions [PDF]
, 2010 Several European countries have developed their national high resolution earth observation systems. Some of them are operated in close cooperation with industrial partners, others are dual-use missions earmarked to fulfil the needs of national security ...
Sandau, Rainer +2 more
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