Results 31 to 40 of about 72,223 (218)

A Software-Defined GNSS Reflectometry Recording Receiver with Wide-Bandwidth, Multi-Band Capability and Digital Beam-Forming

open access: yesRemote Sensing, 2017
In this paper, we present the Software PARIS Interferometric Receiver (SPIR), a high-speed GNSS reflectometry recording receiver which has been designed and implemented with the primary goal of demonstrating the synoptic capabilities of the ...
Serni Ribó   +7 more
doaj   +1 more source

Differential Code Bias Estimation using Multi-GNSS Observations and Global Ionosphere Map [PDF]

open access: yes, 2014
Measurements of Global Navigation Satellite System (GNSS) receivers are affected by systematic offsets re- lated to group and phase delays of the signal generation and processing chain.
Hauschild, André   +2 more
core   +1 more source

An Innovative Signal Processing Scheme for Spaceborne Integrated GNSS Remote Sensors

open access: yesRemote Sensing, 2023
The vigorous development of the global navigation satellite system (GNSS) has led to a boom in GNSS radio occultation (GNSS RO) and GNSS reflectometry (GNSS-R) techniques.
Tongsheng Qiu   +12 more
doaj   +1 more source

A Review on Multi-GNSS for Earth Observation and Emerging Applications

open access: yesRemote Sensing, 2022
Global Navigation Satellite System (GNSS) has drawn the attention of scientists and users all over the world for its wide-ranging Earth observations and applications.
Shuanggen Jin   +2 more
doaj   +1 more source

Python software tools for GNSS interferometric reflectometry (GNSS-IR) [PDF]

open access: yes, 2020
[EN] Global Navigation Satellite System (GNSS) interferometric reflectometry, also known as the GNSS-IR, uses data from geodetic-quality GNSS antennas to extract information about the environment surrounding the antenna.
Martín Furones, Ángel Esteban   +2 more
core   +1 more source

SNR and Standard Deviation of cGNSS-R and iGNSS-R Scatterometric Measurements

open access: yesSensors, 2017
This work addresses the accuracy of the Global Navigation Satellite Systems (GNSS)-Reflectometry (GNSS-R) scatterometric measurements considering the presence of both coherent and incoherent scattered components, for both conventional GNSS-R (cGNSS-R ...
Alberto Alonso-Arroyo   +7 more
doaj   +1 more source

Generic Performance Simulator of Spaceborne GNSS-Reflectometer for Land Applications

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Nowadays, the space missions employing the global navigation satellite system reflectometry (GNSS-R) are UK TDS-1, NASA CYGNSS, and the Chinese BuFeng-1A/B twin satellites, part of the first Chinese global navigation satellite system reflectometry (GNSS ...
Hyuk Park   +3 more
doaj   +1 more source

SEA SURFACE ALTIMETRY BASED ON AIRBORNE GNSS SIGNAL MEASUREMENTS [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
In this study the focus is on ocean surface altimetry using the signals transmitted from GNSS (Global Navigation Satellite System) satellites. A low-altitude airborne experiment was recently conducted off the coast of Sydney.
K. Yu, C. Rizos, A. Dempster
doaj   +1 more source

Deformation Estimation Using Beidou GEO-Satellite-Based Reflectometry

open access: yesRemote Sensing, 2021
Deformation monitoring has been brought to the fore and extensively studied in recent years. Global Navigation Satellite System Reflectometry (GNSS-R) techniques have so far been developed in deformation estimation applications, which however, are ...
Yongqian Chen, Songhua Yan, Jianya Gong
doaj   +1 more source

Software tools for GNSS interferometric reflectometry (GNSS-IR) [PDF]

open access: yesGPS Solutions, 2018
GNSS-R interferometric reflectometry (also known as GNSS-IR, or GPS-IR for GPS signals) is a technique that uses data from geodetic-quality GNSS instruments for sensing the near-field environment. In contrast to positioning, atmospheric, and timing applications of GNSS, GNSS-IR uses the signal-to-noise ratio (SNR) data.
Carolyn Roesler, Kristine M. Larson
openaire   +1 more source

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