Results 111 to 120 of about 739,624 (293)

Acquisition and Processing of GPS signals based on Software Defined Radio

open access: yesRevista Elektrón
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.
Lucas Castillo Delacroix   +3 more
doaj   +1 more source

Analysis, Mathematical Model and Selected Simulation Research of the GNSS Navigation Receiver Correlator

open access: yesMATEC Web of Conferences, 2018
The article presents a mathematical model describing the physical phenomena occurring in the GNSS radio receiver. The main subunit which focused attention was the system of GNSS receiver correlator.
Setlak Lucjan, Kowalik Rafał
doaj   +1 more source

Statistical framework for estimating GNSS bias

open access: yes, 2015
We present a statistical framework for estimating global navigation satellite system (GNSS) non-ionospheric differential time delay bias. The biases are estimated by examining differences of measured line integrated electron densities (TEC) that are ...
Coster, Anthea J.   +4 more
core   +2 more sources

Calibration of Magnetometers with GNSS Receivers and Magnetometer-Aided GNSS Ambiguity Fixing [PDF]

open access: yesSensors, 2017
Magnetometers provide compass information, and are widely used for navigation, orientation and alignment of objects. As magnetometers are affected by sensor biases and eventually by systematic distortions of the Earth magnetic field, a calibration is needed. In this paper, a method for calibration of magnetometers with three Global Navigation Satellite
openaire   +5 more sources

Quantitative assessment of gait alterations and variability in sulky‐driven Standardbred trotters after a standardised exercise test

open access: yesEquine Veterinary Journal, EarlyView.
Abstract Background Assessment of equine metabolic and locomotory responses to quantified levels of physical exercise is needed to support the creation of tailored protocols for optimal training adaptation. The locomotory response to exercise in horses is not fully understood.
Rhana Mackie Aarts   +5 more
wiley   +1 more source

Performance of Multi-GNSS Precise Point Positioning Time and Frequency Transfer with Clock Modeling

open access: yesRemote Sensing, 2019
Thanks to the international GNSS service (IGS), which has provided multi-GNSS precise products, multi-GNSS precise point positioning (PPP) time and frequency transfer has of great interest in the timing community.
Yulong Ge   +6 more
doaj   +1 more source

Periodontal Status of Type 1 Diabetes Mellitus and Healthy Pregnant Women: A Case–Control Pilot Study

open access: yesInternational Journal of Dental Hygiene, EarlyView.
ABSTRACT Aims This cross‐sectional ‘case–control’ pilot study aimed to compare the size of periodontal wounds, periodontal status and total inflammatory burden between pregnant women with type 1 diabetes mellitus (T1DM) and non‐diabetic pregnant women. Methods Fifteen T1DM pregnant women and 15 healthy pregnant women were included. Clinical parameters (
M. Janc   +4 more
wiley   +1 more source

What effect does network size have on NRTK positioning?

open access: yes, 2011
The Network Real Time Kinematic (NRTK) positioning is nowadays a very common practice not only in academia but also in the professional world. To support the users several networks of Continuous Operating Reference Stations (CORSs) were born.
P. Dabove, M. De Agostino
core  

Straddle carrier routing optimization at container terminals utilizing telemetry‐based prediction

open access: yesInternational Transactions in Operational Research, EarlyView.
Abstract Efficient vehicle routing and scheduling for horizontal transport means on container terminals can reduce lead times and travel distances, resulting in fuel savings and productivity gains. We apply machine learning to emulate operational processes, bridging the gap between theoretical optimization models and real‐world practices at container ...
Julian Neugebauer   +3 more
wiley   +1 more source

Galileo and EGNOS as an asset for UTM safety and security [PDF]

open access: yes, 2019
GAUSS (Galileo-EGNOS as an Asset for UTM Safety and Security) is a H2020 project1 that aims at designing and developing high performance positioning systems for drones within the U-Space framework focusing on UAS (Unmanned Aircraft System) VLL (Very Low ...
Andrade-Cetto, Juan   +7 more
core  

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