Results 81 to 90 of about 2,307 (194)
Evaluating GPS Effectiveness for Natural Resource Professionals: Integrating Undergraduate Students in the Decision-Making Process [PDF]
, 2014 Undergraduate students pursuing a Bachelor of Science in Forestry (BSF) degree at Stephen F. Austin State University (SFA) attend an intensive 6-week residential hands-on instruction in applied field methods.
Hung, I-Kuai +3 more
core +2 more sources
Aggregate, Volume 6, Issue 7, July 2025.This review summarizes recent developments in the design of photothermal charge transfer cocrystals for antibacterial therapy, cancer eradication, and bone regeneration, highlighting the design motivations and chemical principles of the strategies. It offers deep insights into the future development of advanced photothermal cocrystals for targeted ...
Arshad Khan +8 more
wiley +1 more source
Optimal Divergence-Free Hatch Filter for GNSS Single-Frequency Measurement
Sensors, 2017 The Hatch filter is a code-smoothing technique that uses the variation of the carrier phase. It can effectively reduce the noise of a pseudo-range with a very simple filter construction, but it occasionally causes an ionosphere-induced error for low ...
Byungwoon Park +4 more
doaj +1 more source
Space Weather, Volume 23, Issue 7, July 2025.Abstract Ionospheric scintillation caused by space weather impacts the accuracy and availability of GNSS services and is considered a natural hazard for aviation and other GNSS users. Increased solar activity in 2021–2023, attributed to the ascending phase of the 25th solar cycle, caused an amplification of ionospheric disturbances including the ...
L. Nikitina +4 more
wiley +1 more source
Geophysical Research Letters, Volume 52, Issue 8, 28 April 2025.Abstract Traveling ionospheric disturbances (TIDs) driven by a large number of internal and external sources are detectable with dense networks of ground‐based Global Navigation Satellite System (GNSS) receivers' measurements of total electron content (TEC).
P. A. Inchin +6 more
wiley +1 more source
Optimised SBAS Ground Segment for Colombia Using Traffic and Ionospheric Risk Models
AerospaceThis paper presents the design, optimization, and performance evaluation of a Satellite-Based Augmentation System (SBAS) ground segment tailored to Colombia’s air navigation infrastructure, with emphasis on ionospheric anomalies in equatorial latitudes ...
Jaime Enrique Orduy +5 more
doaj +1 more source
Quantifying Natural Resources Using Field-Based Instruction and Hands-on Applications [PDF]
, 2014 Undergraduate students pursuing a Bachelor of Science in Forestry (BSF) degree at Stephen F. Austin State University (SFA) attend an intensive 6-week residential hands-on instruction in applied field methods.
Hung, I-Kuai +3 more
core +2 more sources
Assessing the transmission performance of iGMAS real-time data streams
MATEC Web of Conferences, 2017 The use of the BeiDou Navigation Satellite System (BDS) has been increasing in the Asian-Pacific region. Thus, the construction of the international GNSS Monitoring and Assessment System (iGMAS) is accelerating to meet the demanding requirements for ...
He Zhanke +3 more
doaj +1 more source
Robust EGNOS Availability Performances under Severe Ionospheric Conditions [PDF]
, 2015 The estimation of ionosphere delay and associated covariance is the key contributor to reach APV1 and LPV200 availability performance level for EGNOS above the ECAC area. To qualify the future EGNOS system release, ESA has defined a new synthetic data
Authié, Thierry +3 more
core
GPS signal acquisition and tracking using software GPS receiver [PDF]
, 2005 In this paper we investigate GPS signal acquisition and tracking using software GPS receiver. The software GPS receiver consists of a RF front-end, an ADC, and a software GPS program that runs on PC.
Wu, F, Yasuda, A, Zhang, K
core