Results 21 to 30 of about 1,078 (176)
Impact of Tropospheric Delay Gradients on Total Tropospheric Delay and Precise Point Positioning
International Journal of Geosciences, 2016 GPS signals are electromagnetic waves that are affected by the Earth’s atmosphere. The Earth’s atmosphere can be categorized, according to its effect on GPS signals, into the ionosphere (ionospheric delay) and neutral atmosphere (tropospheric delay).
Mohamed Elsobeiey, Mohamed El-Diasty
openaire +2 more sources
The Numerical Simulation of the Atmosphere Delays Impact on Radar Measurement in Aviation
Communications, 2019 The article presents numerical simulations with regard to determining the impact of the ionospheric and tropospheric delays on a radar-aircraft slant distance measurement.
Kamil Krasuski, Artur Gos
doaj +1 more source
Establishment of a Real-Time Local Tropospheric Fusion Model
Remote Sensing, 2019 The tropospheric delay is one major error source affecting the precise positioning provided by the global navigation satellite system (GNSS). This error occurs because the GNSS signals are refracted while travelling through the troposphere layer ...
Yibin Yao +4 more
doaj +1 more source
ATMOSPHERIC PHASE DELAY IN SENTINEL SAR INTERFEROMETRY [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 The repeat-pass Synthetic Aperture Radio Detection and Ranging (RADAR) Interferometry (InSAR) has been a widely used geodetic technique for observing the Earth’s surface, especially for mapping the Earth’s topography and deformations.
V. Krishnakumar +3 more
doaj +1 more source
Background Tropospheric Delay in Geosynchronous Synthetic Aperture Radar [PDF]
Remote Sensing, 2020 Spaceborne synthetic aperture radar (SAR) has been treated as a weather independent system for a long time. However, with the development of advanced SAR configurations, e.g., high resolution, bistatic, geosynchronous (GEO), the influence of tropospheric propagation error, which strongly depends on the weather, has begun to receive attention.
Dexin Li +4 more
openaire +2 more sources
Engineering Science and Technology, an International Journal, 2020 Estimation of tropospheric wet delay is of great importance for real-time weather forecasting applications. In the last decade, based on troposphere wet delays obtained from Global Navigation Satellite System observations, high temporal and spatial ...
Mahmut Oguz Selbesoglu
doaj +1 more source
Assessment of Empirical Troposphere Model GPT3 Based on NGL’s Global Troposphere Products
Sensors, 2020 Tropospheric delay is one of the major error sources in GNSS (Global Navigation Satellite Systems) positioning. Over the years, many approaches have been devised which aim at accurately modeling tropospheric delays, so-called troposphere models.
Junsheng Ding, Junping Chen
doaj +1 more source
The Impact of Tropospheric Anomalies on Sea-Based JPALS Integrity
Sensors, 2018 The Joint Precision Approach Landing System (JPALS) addresses tropospheric errors through double-difference and tropospheric model correction. Large residuals occur with two types of tropospheric anomalies: the vertical duct and horizontal non-nominal ...
Yue Zhang, Zhipeng Wang
doaj +1 more source
Remote Sensing, 2022 The devastating Hunga Tonga-Hunga Ha’apai underwater volcano erupted at ~04:15 UT on 15 January 2022. We captured the waves that erupted from the volcano propagating in the ionosphere by monitoring total electron content (TEC) perturbations utilizing ...
Chieh-Hung Chen +15 more
doaj +1 more source
Estimation of Precipitable Water Vapor Using the GPS [PDF]
Journal of Astronomy and Space Sciences, 1999 The radio waves transmitted from GPS satellites is delayed by the troposphere as they propagate to Earth-based GPS receivers. The troposphere delay is usually divided into two parts, the dry delay due to the atmospheric gases and the wet delay due to the
Yong-Jin Moon +2 more
doaj