Results 111 to 120 of about 1,009 (163)

Surface properties of the seas of Titan as revealed by Cassini mission bistatic radar experiments. [PDF]

Nat Commun
Poggiali V, Brighi G, Hayes AG, Nicholson PD, MacKenzie S, Lalich DE, Bonnefoy LE, Oudrhiri K, Lorenz RD, Soderblom JM, Tortora P, Zannoni M.   +11 more
europepmc   +1 more source

Origin, evolution, and fate of Titan's polar clouds. [PDF]

Nat Commun
de Batz de Trenquelléon B, Rannou P, Lebonnois S, Vinatier S.   +3 more
europepmc   +1 more source

Retrieval of refractivity fields from GNSS tropospheric delays: theoretical and data-based evaluation of collocation methods and comparisons with GNSS tomography. [PDF]

J Geod
Shehaj E, Geiger A, Rothacher M, Moeller G.   +3 more
europepmc   +1 more source

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Simulation of radio occultation measurements

Space Communications, 2013
This paper describes a wave propagator that can be used to simulate radio occultation measurements. The wave propagator is used to simulate a number of radio occultations based on European Centre for Medium-range Weather Forecasts (ECMWF) atmospheric profiles.
Hans-Henrik Benzon, Stig Syndergaard
openaire   +1 more source

Principle of Locality and Analysis of Radio Occultation Data

IEEE Transactions on Geoscience and Remote Sensing, 2013
A fundamental principle of local interaction of radio waves with a refractive spherical medium is formulated and illustrated using the radio occultation (RO) method of remote sensing of the atmosphere and the ionosphere of the Earth and the planets. In accordance with this principle, the main contribution to variations of the amplitude and the phase of
Alexander G. Pavelyev, Kefei Zhang, Yuei-An Liou, Alexey A. Pavelyev, Chuan-Sheng Wang, Jens Wickert, Torsten Schmidt, Yuriy Kuleshov   +7 more
openaire   +3 more sources

Experimental Validation of GNSS Interferometric Radio Occultation [PDF]

Remote Sensing, 2019
In this work, we present experimental results on the interferometric radio occultation (iRO) signal processing techniques, and compare the performance to the closed-loop and open-loop processing used in conventional radio occultation measurements. We also discuss the effects of antenna beam width to mitigate inter-satellite interferences, as well as ...
Manuel Martin-Neira, Fran Fabra, Estel Cardellach   +2 more
exaly   +2 more sources

GNSS Interferometric Radio Occultation

IEEE Transactions on Geoscience and Remote Sensing, 2016
GNSS Reflectometry, Scatterometry and Radio Occultation aboard ISS is the mission concept under study within the European Space Agency. Its core payload consists of an interferometric GNSS-Reflectometry ocean altimeter/scatterometer which does not need to generate any clean replicas of the GNSS codes for its operation.
openaire   +1 more source

The ROSA radio occultation project

2012 6th ESA Workshop on Satellite Navigation Technologies (Navitec 2012) & European Workshop on GNSS Signals and Signal Processing, 2012
The experience gained from ROSA radio occultation instruments flying nowadays on three missions (OCEANSAT-2, SAC-D and MEGHATROPIQUE) is presented in this paper. Insights on different aspects of GNSS remote sensing like tropospheric sounding, ionospheric sounding are presented here, compared with state-of-the-art reference data (ECMWF, colocations ...
A. Zin, S. Zago, E. Mangolini, S. Landenna, L. Marradi, R. Notarpietro, S. Radicella, B. Nava, V. Catalano   +8 more
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