Results 101 to 110 of about 186,788 (382)
Analysis of BDS-3 Onboard Clocks Based on GFZ Precise Clock Products
Remote Sensing, 2022 The characteristics and performance of satellite clocks are important to the positioning, navigation, and timing (PNT) services of Global Navigation Satellite System (GNSS) users.
Tao Geng, Rui Jiang, Yifei Lv, Xin Xie
doaj +1 more source
Archaeological Prospection, EarlyView.ABSTRACT This study investigates the effectiveness of drone‐based remote sensing and Google Earth satellite imagery for archaeological prospection in the Bayan Gol Valley, Central Mongolia. Utilizing a fixed‐wing unmanned aerial vehicle (UAV) equipped with RGB and multispectral sensors, we surveyed 655 ha to document Mongol‐period settlement structures
Peter Heimermann +4 more
wiley +1 more source
Remote Sensing, 2019 In May 2016, the availability of GNSS raw measurements on smart devices was announced by Google with the release of Android 7. It means that developers can access carrier-phase and pseudorange measurements and decode navigation messages for the first ...
Jianghui Geng +4 more
doaj +1 more source
Medium Earth Orbit dynamical survey and its use in passive debris removal
, 2019 The Medium Earth Orbit (MEO) region hosts satellites for navigation, communication, and geodetic/space environmental science, among which are the Global Navigation Satellites Systems (GNSS).
Rosengren, Aaron J. +3 more
core +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
Spatial resolution in GNSS-R under coherent scattering [PDF]
, 2020 © 2019 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 ...
Camps Carmona, Adriano José
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Implementation and performance analysis of the PDR/GNSS integration on a smartphone
GPS Solutions, 2022 Pedestrian dead reckoning (PDR) is an effective technology for pedestrian navigation. In PDR, the steps are detected with the measurements of self-contained sensors, such as accelerometers, and the position is updated with additional heading angles.
Changhui Jiang +6 more
semanticscholar +1 more source
EURASIP Journal on Advances in Signal Processing, 2014 This special issue publishes several innovative ideas, methods, and applications in GNSS remote sensing, especially in GNSS-R. The issue comprises six research papers of both theoretical studies and practice, and one review article. The topics investigated include sea level measurement, snow depth estimation, snow water equivalent estimation, soil ...
Markus Markgraf +5 more
openaire +2 more sources
Archaeological Prospection, EarlyView.ABSTRACT Preliminary geophysical investigations are a cost‐effective and efficient way to screen archaeological sites and locate buried structures. Ground‐penetrating radar (GPR) is one of the most widely used methods for archaeological prospection, but in some sites, it cannot be employed effectively due to the presence of clay or other electrically ...
Andrea Vergnano +5 more
wiley +1 more source
Cross-talk statistics and impact in interferometric GNSS-R [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