Results 61 to 70 of about 15,182,981 (294)

GNSS-R GRAZING ANGLE FOR SEA ICE ALTIMETRY [PDF]

open access: yes, 2021
The grazing angle signals of opportunities from Global Navigation Satellite System (GNSS) are used to perform precise sea-ice altimetry. The novel GNSS-Reflectometry (GNSS-R) would help to better understand the sea-ice distribution and classification in ...
NAVARRO BUENDÌA, Raquel
core   +1 more source

Study of GNSS-R Techniques for FORMOSAT Mission

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016
The use of global navigation satellite system (GNSS) for remote sensing and environmental monitoring has been an important research topic in recent years due to the omnipresence and performance of GNSS signals. The FORMOSAT-3 and the upcoming FORMOSAT-7 have exploited the potential of GNSS-based radio occultation for profiling the ionosphere and ...
Jyh-Ching Juang   +2 more
openaire   +2 more sources

GNSS-R altimeter performance: analysis of Cramer-Rao lower bounds

open access: yes, 2012
Earth-reflected Global Navigation Satellite Systemsignals have become an attractive tool for remote sensing, being proposed as a means to perform ocean altimetry, among many other applications.
D'Addio, Salvatore   +9 more
core   +1 more source

Investigating Pompeii Subsoil Using Geomatics and Geophysics Merged Analyses

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT The archaeological site of Pompeii represents an exceptional context for the application of non‐invasive and integrated investigation methods aimed at enhancing the understanding of both exposed and buried remains. This study presents the results of multidisciplinary research conducted in the Palestra Grande site, a large and strategically ...
Valentina Santoro   +9 more
wiley   +1 more source

Investigation of Potential of GNSS-R Polarization: Theoretical Simulations

open access: yesRemote Sensing, 2022
Global navigation satellite system (GNSS) reflectometry (GNSS-R) developed into a promising remote sensing technique. However, few previous related studies considered the potential of its polarization. Owing to lack of sufficient in situ measurement data to support comprehensive investigation of GNSS-R polarization, this study used theoretical models ...
Xuerui Wu   +4 more
openaire   +3 more sources

Impact of Receiver Dynamics on Space-Based GNSS-R Altimetry [PDF]

open access: yes, 2019
It is a challenge to achieve high accuracy altimetric results using space-based global navigation satellite system reflectometry (GNSS-R). This paper focuses on improving the accuracy of space-based GNSS-R altimetric measurements by considering receiver ...
Qiao, L ; https://orcid.org/   +3 more
core   +1 more source

Dark Heritage Prospection ‐ Mapping the Treblinka II Extermination Camp Using a Magnetometer Survey and Integrated Archival Sources

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT The history of Nazi German extermination camps has, until recently, relied primarily on eyewitness testimony. Very few official documents detailing the facilities survived the war due to the special operation ‘Sonderaktion 1005’, dedicated to hiding their existence and extent.
Sebastian Różycki   +4 more
wiley   +1 more source

Remote sensing and its applications using GNSS reflected signals: advances and prospects

open access: yesSatellite Navigation
The Global Navigation Satellite Systems (GNSS), including the US’s GPS, China’s BDS, the European Union’s Galileo, and Russia’s GLONASS, offer real-time, all-weather, any-time, anywhere and high precision observations by transmitting L band signals ...
Shuanggen Jin   +13 more
doaj   +1 more source

The first polarimetric GNSS-Reflectometer instrument in space improves the SMAP mission’s sensitivity over densely vegetated areas

open access: yesScientific Reports, 2023
The Soil Moisture Active Passive (SMAP) mission has dramatically benefited our knowledge of the Earth’s surface processes. The SMAP mission was initially designed to provide complementary L-band measurements from a radiometer and a radar, producing ...
Nereida Rodriguez-Alvarez   +5 more
doaj   +1 more source

Tackling cancer stemness with nanotechnology in the era of precision medicine

open access: yesBMEMat, EarlyView.
Precise customization of nanoparticles (NPs) enables active targeting of cancer stem cells (CSCs), thereby improving drug delivery and therapeutic efficacy. NP‐based probing enhances CSC detection through imaging and liquid biopsy, whereas diverse therapeutic payloads improve therapeutic outcomes.
Shaolei Guo   +9 more
wiley   +1 more source

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