Results 11 to 20 of about 1,121 (191)
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.
Serni Ribo +2 more
exaly +3 more sources
Ionospheric bending correction for GNSS radio occultation signals [PDF]
Radio Science, 2011 Ionospheric propagation effects on Global Navigation Satellite Systems (GNSS) signals are the most pronounced during radio occultation due to long ionospheric travel paths of the received signal on low Earth orbiting satellites.
Mohammed Mainul Hoque, N Jakowski
exaly +4 more sources
Sensitivity of PAZ LEO Polarimetric GNSS Radio-Occultation Experiment to Precipitation Events [PDF]
IEEE Transactions on Geoscience and Remote Sensing, 2015 A Global Navigation Satellite System (GNSS) radio occultation (RO) experiment is being accommodated in the Spanish low Earth orbiter for Earth Observation PAZ.
Estel Cardellach +2 more
exaly +4 more sources
KOMPSAT-5 GNSS Radio Occultation Data Operations [PDF]
Geo Data, 2022 The Korea Aerospace Research Institute launched KOMPSAT-5 on August 22, 2013, and has been operating for 10 years. KOMPSAT-5 has SAR (Synthetic Aperture Radar) for earth observation missions, and collects data necessary for earth atmosphere analysis ...
Okchul Jung +3 more
doaj +2 more sources
Real-Time Tomographic Inversion of Truncated Ionospheric GNSS Radio Occultations
Remote Sensing, 2023 This paper presents a new way of combining Abel inversion and the Chapman model with a linearly increasing scale height to retrieve ionospheric electron density vertical profiles from truncated-sounding radio-occultation data. A linear Vary–Chap model is
Germán Olivares-Pulido +9 more
doaj +4 more sources
Assimilation of GNSS radio occultation observations in GRAPES [PDF]
Atmospheric Measurement Techniques, 2014 This paper reviews the development of the global navigation satellite system (GNSS) radio occultation (RO) observations assimilation in the Global/Regional Assimilation and PrEdiction System (GRAPES) of China Meteorological Administration, including ...
Y. Liu, Y. Liu, J. Xue
doaj +3 more sources
An Overview on GNSS Radio Occultation
, 2010 An overview on GNSS Radio Occultation (GNSS-RO) technique and its application in geodesy and atmospheric research was presented at the Institute of Astronomical and Physical Geodesy (APMG), University of Bonn in Germany, on 13th July ...
Shabanloui, Akbar
core +2 more sources
Principles of variational assimilation of GNSS radio occultation data [PDF]
, 2003 The standard processing of the Global Navigation Satellite System (GNSS) based refractometric data performed by means of a space-borne GPS-receiver was based on the approximate derivation of the local vertical profiles of the atmospheric refractivity by ...
Gorbunov, M., Kornblueh, L.
core +4 more sources
Remote Sensing, 2023 High-frequency skywave propagation can be heavily impacted by D- and E-region dynamics requiring accurate global measurements to optimize performance. A standard measurement technique is to use ionosondes, but they are unable to measure below 1 MHz and ...
, N Swarnalingam, Anthony L Franz
exaly +3 more sources
Analysis of reflections in GNSS radio occultation measurements using the phase matching amplitude [PDF]
Atmospheric Measurement Techniques, 2018 It is well-known that in the presence of super-refractive layers in the lower-tropospheric inversion of GNSS radio occultation (RO) measurements using the Abel transform yields biased refractivity profiles. As such it is problematic to reconstruct the
T. Sievert +3 more
doaj +2 more sources