Results 21 to 30 of about 8,117 (279)
An Innovative Signal Processing Scheme for Spaceborne Integrated GNSS Remote Sensors
Remote 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
Improving the Pulse-Limited Footprint Resolution of GNSS-R Based on the Novel Joint Bandwidth Method
Remote Sensing, 2023 The bistatic global navigation satellite system’s (GNSS) signal reflection technology has become an effective means of space-based sea surface wind field retrieval and height retrieval.
Zhen Cui +9 more
doaj +1 more source
Estimativa da Umidade do Solo por Refletometria GNSS: uma Revisão Conceitual
Revista Brasileira de Cartografia, 2021 O monitoramento da umidade do solo possibilita o manejo e uso eficiente de recursos hídricos, sendo uma atividade importante em diversas áreas, tais como: no monitoramento de áreas de risco; delimitação de áreas suscetíveis a enchentes; atividades da ...
Jorge Felipe Euriques +4 more
doaj +1 more source
Impact of the Initial State on BDS Real-Time Orbit Determination Filter Convergence
Remote Sensing, 2018 High precision real-time orbit of navigation satellites are usually predicted based on batch estimation solutions, which is highly dependent on the accuracy of the dynamic model.
Yun Qing +4 more
doaj +1 more source
2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017 Since the nadir 1-second altimetry precision was first estimated to be of 56 cm when the PARIS concept was developed back in 1993 (it was assumed the interferometric processing of GPS P-code signals and a 4×4 m×m receiving antenna at 700 km orbital altitude) [1], many detailed analyses and experiments have been conducted leading to far more optimistic ...
M. Martin-Neira +10 more
openaire +3 more sources
Can GNSS reflectometry detect precipitation over oceans? [PDF]
, 2018 For the first time, a rain signature in Global Navigation Satellite System Reflectometry (GNSS‐R) observations is demonstrated. Based on the argument that the forward quasi‐specular scattering relies upon surface gravity waves with lengths larger than ...
Asgarimehr, Milad +3 more
core +1 more source
SNR and Standard Deviation of cGNSS-R and iGNSS-R Scatterometric Measurements
Sensors, 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
Sensitivity of GNSS-R spaceborne observations to soil moisture and vegetation [PDF]
, 2016 Global navigation satellite systems-reflectometry (GNSS-R) is an emerging remote sensing technique that makes use of navigation signals as signals of opportunity in a multistatic radar configuration, with as many transmitters as navigation satellites are
Camps Carmona, Adriano José +6 more
core +2 more sources
Latest Advances in the Global Navigation Satellite System—Reflectometry (GNSS-R) Field
Remote Sensing, 2023 The global navigation satellite system-reflectometry (GNSS-R) field has experienced an exponential growth as it is becoming relevant to many applications and has captivated the attention of an elevated number of research scholars, research centers and ...
Nereida Rodriguez-Alvarez +2 more
doaj +1 more source
SNR degradation in GNSS-R measurements under the effects of radio-frequency interference [PDF]
, 2016 ©2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new ...
Alonso Arroyo, Alberto +5 more
core +2 more sources