Zobrazeno 1 - 10
of 52 663
pro vyhledávání: '"GNSS‐A"'
Autor:
Paulo Setti, Sajad Tabibi
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 18, Pp 663-679 (2025)
Soil moisture, an essential climate variable, is traditionally retrieved on large scales using passive or active microwave sensors, with temporal resolution of 2–3 days and no less than 6 days, respectively. Global navigation satellite system-refle
Externí odkaz:
https://doaj.org/article/4f0da95d9aee4c81ac8fb20f7e9fa7df
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 18, Pp 413-423 (2025)
The potential of spaceborne global navigation satellite system reflectometry (GNSS-R) to retrieve a variety of geophysical parameters has already been demonstrated in numerous studies. In 2021, China successfully launched the Fengyun-3E (FY-3E) polar
Externí odkaz:
https://doaj.org/article/f9ee8f224ddf4da0b51a3bd99331971b
Publikováno v:
地球与行星物理论评, Vol 56, Iss 1, Pp 26-44 (2025)
As the "Roof of the world", the current state of crustal uplift on the Qinghai-Xizang Plateau is a significant focus in Earth sciences due to its complex geodynamic environment and profound implications for regional and global climate, hydrology, and
Externí odkaz:
https://doaj.org/article/375f02f4549144d78ea4104faafd719f
Publikováno v:
Geo-spatial Information Science, Pp 1-17 (2024)
Obtaining information about various vehicle types traveling on road networks is crucial for estimating traffic loads on roads, evaluating the adequacy of road design standards, and providing personalized navigation guidance. Traditional intrusive and
Externí odkaz:
https://doaj.org/article/66a839a801944344aff660841c61e24e
Publikováno v:
Revista Elektrón, Vol 8, Iss 2, Pp 43-53 (2024)
This paper presents the development of a software tool that implements an acquisition block for GPS signals using SDR technology, specifically devices like the HackRF One and RTL-SDR. The tool, implemented in Python, successfully detects satellites a
Externí odkaz:
https://doaj.org/article/d152aaec31894c07898b4c58e08eb9f5
Autor:
Wang Li, Yiping Jiang
Publikováno v:
Satellite Navigation, Vol 5, Iss 1, Pp 1-14 (2024)
Abstract The spatial gradient induced by the Equatorial Plasma Bubble (EPB) in low latitude regions is a major challenge for the Ground Based Augmentation System (GBAS). To facilitate the implementation and operation of GBAS Approach Service Type (GA
Externí odkaz:
https://doaj.org/article/19d2ff44765e49e5956a8080104c8d20
Population fusion optimization algorithm for GNSS integer ambiguity resolution based on PSO and AFSA
Publikováno v:
工程科学学报, Vol 46, Iss 12, Pp 2246-2256 (2024)
Carrier phase measurement plays a crucial role in achieving rapid and high-precision positioning within a global navigation satellite system (Global navigation satellite system, GNSS). A pivotal aspect of this process is the accurate resolution of th
Externí odkaz:
https://doaj.org/article/b28d7926e6f049e5a150cd9715c8958d
Publikováno v:
Egyptian Journal of Remote Sensing and Space Sciences, Vol 27, Iss 4, Pp 656-668 (2024)
Accurate geoid modeling is significant in geodetic, geological, and environmental sciences. Owing to challenges in establishing reference stations, particularly in rugged terrains, such as in Northern Vietnam, leveraging global geopotential models (G
Externí odkaz:
https://doaj.org/article/d51ec6cf1b52462186910096d182ed8e
Publikováno v:
All Earth, Vol 36, Iss 1, Pp 1-15 (2024)
The Global Navigation Satellite System (GNSS) Multipath Reflection (MR) technique utilises the multipath effects of GNSS signals on the sea surface to retrieve tidal variations, playing a crucial role in tidal monitoring. However, traditional GNSS-MR
Externí odkaz:
https://doaj.org/article/54a8167efd2b434a828be6aa378147f2
Autor:
Kiichiro Ishikawa, Taiga Odaka
Publikováno v:
SICE Journal of Control, Measurement, and System Integration, Vol 17, Iss 1, Pp 42-55 (2024)
In tunnel inspections, it is important to check for the progression of cracks and other deformations. The point clouds of tunnels are not reproducible due to accumulated errors in mobile mapping systems using GNSS/IMU navigation. Therefore, it has be
Externí odkaz:
https://doaj.org/article/858e280321e04505af9b2fdc75259f75