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Artykuły w czasopismach na temat „GNSS Techniques”

Autor: Grafiati

Data publikacji: 6 września 2023

Data aktualizacji: 31 lipca 2025

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1

Zubinaitė, Vilma, and George Preiss. "A PROPOSED SIMPLIFIED TECHNIQUE FOR CONFIRMING HIGH PRECISION GNSS ANTENNA OFFSETS." Aviation 14, no. 3 (2010): 83–89. http://dx.doi.org/10.3846/aviation.2010.13.

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The purpose of this research was to independently investigate and determine confirmatory calibration procedures for GNSS antennas. This paper focuses on the aspect of simplified techniques for confirming high precision GNSS antenna offsets. In the other words, the aim is to verify GNSS antenna offset parameters ‐ results, which will be used to find the consequences on ground positions of orbital distortions caused by solar activity. It is well known that the computation of GNSS observations using high precision GNSS antennas requires knowledge of the relevant antenna phase centre offsets. Thes

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Qiu, Tongsheng, Xianyi Wang, Yueqiang Sun, et al. "An Innovative Signal Processing Scheme for Spaceborne Integrated GNSS Remote Sensors." Remote Sensing 15, no. 3 (2023): 745. http://dx.doi.org/10.3390/rs15030745.

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The vigorous development of the global navigation satellite system (GNSS) has led to a boom in GNSS radio occultation (GNSS RO) and GNSS reflectometry (GNSS-R) techniques. Consequently, we have proposed an innovative signal processing scheme for spaceborne integrated GNSS remote sensors (SIGRS), combining a GNSS RO and a GNSS-R module. In the SIGRS, the GNSS-R module shares one precise orbit determination (POD) module with the GNSS RO module, and the GNSS-R module first achieves compatibility with GPS, BDS, and Galileo. Moreover, the programmable non-uniform delay resolution was introduced and

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Kim, Hanjin, Chang-Uk Hyun, Hyeong-Dong Park, and Jongmun Cha. "Image Mapping Accuracy Evaluation Using UAV with Standalone, Differential (RTK), and PPP GNSS Positioning Techniques in an Abandoned Mine Site." Sensors 23, no. 13 (2023): 5858. http://dx.doi.org/10.3390/s23135858.

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Global navigation satellite systems (GNSSs) provide a common positioning method that utilizes satellite signals to determine the spatial location of a receiver. However, there are several error factors in standalone GNSS positioning due to instrumental, procedural, and environmental factors that arise during the signal transmission process, and the final positioning error can be up to several meters or greater in length. Thus, real-time kinematic (RTK) correction and post-mission precise point positioning (PPP) processing technologies are proposed to improve accuracy and accomplish precise pos

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4

S, Arun. "GIS and GNSS Integration Techniques for Earth Observations." International Journal for Research in Applied Science and Engineering Technology 12, no. 7 (2024): 423–25. http://dx.doi.org/10.22214/ijraset.2024.63584.

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Abstract: The term "GNSS," or global navigation satellite system, refers to any satellite navigation system with global coverage. To determine your current location, GNSS devices and receivers employ geolocation information from satellite navigation systems. Trilateration is the basis for how navigation satellites operate. An object's position on the spheroid is defined by its latitude, longitude, and altitude above mean sea level. Today, the utilisation of Global Navigation Satellite Systems (GNSS) technology is required for a wide range of uses, including engineering, cities, and defence. Ge

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5

Guerova, Guergana, Jonathan Jones, Jan Douša, et al. "Review of the state of the art and future prospects of the ground-based GNSS meteorology in Europe." Atmospheric Measurement Techniques 9, no. 11 (2016): 5385–406. http://dx.doi.org/10.5194/amt-9-5385-2016.

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Abstract. Global navigation satellite systems (GNSSs) have revolutionised positioning, navigation, and timing, becoming a common part of our everyday life. Aside from these well-known civilian and commercial applications, GNSS is now an established atmospheric observing system, which can accurately sense water vapour, the most abundant greenhouse gas, accounting for 60–70 % of atmospheric warming. In Europe, the application of GNSS in meteorology started roughly two decades ago, and today it is a well-established field in both research and operation. This review covers the state of the art in

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6

Zmysłowski, Dariusz, Michał Kryk, and Jan Kelner. "TESTING GNSS RECEIVER ROBUSTNESS FOR JAMMING." Aviation and Security Issues 4, no. 2 (2023): 139–55. http://dx.doi.org/10.55676/asi.v4i2.64.

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Global Navigation Satellite Systems (GNSSs) providing positioning, navigation and synchronization, has become an important element of modern systems and devices that have a crucial impact on many economy branches and the life of an common person. Literature analysis and reports from recent armed conflicts show that the use of techniques for jamming and spoofing GNSS signals is becoming increasingly. This reduces the level of safety in transport and increases the risk of improper operation of GNSS-based systems, like cellular telephony or bank sector. This paper focuses on the methodology for t

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7

Szmagliński, Jacek, Andrzej Wilk, Władysław Koc, et al. "Verification of Satellite Railway Track Position Measurements Making Use of Standard Coordinate Determination Techniques." Remote Sensing 14, no. 8 (2022): 1855. http://dx.doi.org/10.3390/rs14081855.

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The article presents the results of satellite railway track position measurements performed by a multidisciplinary research team, the members of which represented Gdansk University of Technology and Gdynia Maritime University. Measuring methods are described which were used for reconstructing the railway track axis position and diagnosing railway track geometry deformations. As well as that, the description of the novel method developed by the authors to perform mobile GNSS measurements is included. The reported research aimed at assessing the uncertainty of railway track axis reconstruction m

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8

Gao, Yuting, Baoyu Liu, Yang Gao, Guanwen Huang, and Qin Zhang. "Comparative Analysis of Prior and Posterior Integrity Monitoring Techniques for Enhanced Global Navigation Satellite System Positioning Continuity and Accuracy." Remote Sensing 17, no. 4 (2025): 723. https://doi.org/10.3390/rs17040723.

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GNSS integrity is an essential component for ensuring the reliability of safety-critical applications using Global Navigation Satellite Systems (GNSSs). These applications, such as use in aviation and autonomous vehicles, demand high precision and dependability. There are two major GNSS integrity monitoring techniques, namely prior and posterior integrity monitoring. The principles of the two approaches, however, differ significantly, each influencing the GNSS positioning system’s continuity and accuracy performance in unique ways. In this study, we conduct a thorough evaluation and comparison

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9

Liu, Congliang, Yueqiang Sun, Weihua Bai, et al. "Effect of Multiple GNSS Integration on the Number and Spatiotemporal Coverage of Radio Occultation Events." Atmosphere 13, no. 5 (2022): 654. http://dx.doi.org/10.3390/atmos13050654.

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The development of global navigation satellite systems (GNSSs) and multi-system compatible radio occultation (RO) techniques provides favorable conditions and opportunities for increasing the number of occultation events and improving their spatiotemporal coverage. The performance of the multiple GNSS RO event number, spatiotemporal coverage, and uniformity need assessments by robust and functional approaches. Firstly, a simulation system of RO events, which took the orbit perturbations into account, was established, and the concepts of global coverage fraction and uniformity of RO events were

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10

Ghazali, Kamarul Hawari, Fahad Usman, Jiang XU, Yan Suqing, Yuanfa Ji, and Xiyan Sun. "Classification of GNSS Signals for Land Deformation Detection Based on Signal Processing Techniques." Journal of Advanced Research in Applied Sciences and Engineering Technology 65, no. 1 (2025): 88–98. https://doi.org/10.37934/araset.65.1.8898.

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Global Navigation Satellite System (GNSS) technology encompasses various satellite navigation systems, including GPS, GLONASS, Beidou, and Galileo, providing positioning with global coverage and enabling users to determine their location and timing. GNSS operates through three main components: the spatial segment, consisting of satellites that transmit signals from space; the control segment, which manages and monitors the satellite operations; and the receiver segment, where GNSS receivers process the signals to derive precise location and timing data. Moreover, GNSS can also be used for defo

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11

Abd el rahman, Mustafa, Mohamed elharmel, Roshdy Abdelrasol, Mohamed Zagloul, and Mohamed elghamry. "GNSS Interference Suppression Techniques: A Survey." International Journal of Telecommunications 01, no. 01 (2021): 1–10. http://dx.doi.org/10.21608/ijt.2021.266285.

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Kshetrimayum, Arvindd, Hari Shanker Srivastava, Ashutosh Bhardwaj, Vaibhav Garg, and Gugulothu Srilatha. "Snow Depth Measurement using GNSS-R Techniques: A Review." International Journal of Advanced Engineering Research and Science 11, no. 7 (2024): 82–96. http://dx.doi.org/10.22161/ijaers.117.10.

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Snow is a widespread atmospheric constituent on Earth, as well as one of the cryosphere's most important seasonal and inter-seasonal fluctuations. Estimating the amount of snow in hilly areas is essential for a variety of socioeconomic endeavours and environmental research. Traditional methods for monitoring snow depth include accessibility, expense, and coverage limits, especially in isolated and difficult terrain. Global Navigation Satellite System-Reflectometry (GNSS-R) technology has emerged as a promising tool for remote sensing applications that include snow depth estimation. This review

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13

Bai, Weihua, Guanyi Wang, Feixiong Huang, et al. "Review of Assimilating Spaceborne Global Navigation Satellite System Remote Sensing Data for Tropical Cyclone Forecasting." Remote Sensing 17, no. 1 (2025): 118. https://doi.org/10.3390/rs17010118.

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Global Navigation Satellite System (GNSS) Radio Occultation (RO) and GNSS Reflectometry (GNSS-R) are the two major spaceborne GNSS remote sensing (GNSS-RS) techniques, providing observations of atmospheric profiles and the Earth’s surface. With the rapid development of GNSS-RS techniques and spaceborne missions, many experiments and studies were conducted to assimilate those observational data into numerical weather-prediction models for tropical cyclone (TC) forecasts. GNSS RO data, known for its high precision and all-weather observation capability, is particularly effective in forecasting m

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14

Lackowski, Maciej, Kamil Kaźmierski, and Iwona Kudłacik. "Using GNSS Phase Observation Residuals and Wavelet Analysis to Detect Earthquakes." Artificial Satellites 58, no. 4 (2023): 341–54. http://dx.doi.org/10.2478/arsa-2023-0014.

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Abstract Global Navigation Satellite Systems (GNSSs) are one of the techniques that can be used for the deformation monitoring caused by earthquakes. GNSSs enable the monitoring of specific areas affected by earthquakes in real-time and post-processing modes. This paper provides a novel method for the short-term displacement detection based on the phase residuals of GNSS observations. The study examines a natural earthquake from October 26, 2016, in Italy with Mw 6.1. In the proposed methodology, the residuals of the GNSS phase observations are derived using Precise Point Positioning. Then, re

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15

Farolfi, Gregorio, Aldo Piombino, and Filippo Catani. "Fusion of GNSS and Satellite Radar Interferometry: Determination of 3D Fine-Scale Map of Present-Day Surface Displacements in Italy as Expressions of Geodynamic Processes." Remote Sensing 11, no. 4 (2019): 394. http://dx.doi.org/10.3390/rs11040394.

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We present a detailed map of ground movement in Italy derived from the combination of the Global Navigation Satellite System (GNSS) and Satellite Synthetic Aperture Radar (SAR) interferometry. These techniques are two of the most used space geodetic techniques to study Earth surface deformation. The above techniques provide displacements with respect to different components of the ground point position; GNSSs use the geocentric International Terrestrial Reference System 1989 (ITRS89), whereas the satellite SAR interferometry components are identified by the Lines of Sight (LOSs) between a sate

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Xie, Kaiting, Zhaoguo Zhang, and Shiliang Zhu. "Enhanced Agricultural Vehicle Positioning through Ultra-Wideband-Assisted Global Navigation Satellite Systems and Bayesian Integration Techniques." Agriculture 14, no. 8 (2024): 1396. http://dx.doi.org/10.3390/agriculture14081396.

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This paper introduces a cooperative positioning algorithm for agricultural vehicles, which uses the relative distance of the workshop to improve the performance of the Global Navigation Satellite Systems (GNSS), to improve the positioning accuracy and stability. Firstly, the extended Kalman filter (EKF) fuses the vehicle motion state data with GNSS observation data to improve the independent GNSS positioning accuracy. Subsequently, vehicle state and observation models are formulated using Bayesian theory, incorporating GNSS/UWB data with UWB tag network ranging and with GNSS positioning data a

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Jin, Shuanggen, Qisheng Wang, and Gino Dardanelli. "A Review on Multi-GNSS for Earth Observation and Emerging Applications." Remote Sensing 14, no. 16 (2022): 3930. http://dx.doi.org/10.3390/rs14163930.

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Global Navigation Satellite System (GNSS) has drawn the attention of scientists and users all over the world for its wide-ranging Earth observations and applications. Since the end of May 2022, more than 130 satellites are available for fully global operational satellite navigation systems, such as BeiDou Navigation Satellite System (BDS), Galileo, GLONASS and GPS, which have been widely used in positioning, navigation, and timing (PNT), e.g., precise orbit determination and location-based services. Recently, the refracted, reflected, and scattered signals from GNSS can remotely sense the Eart

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Nguyen, Huy Dinh, and Trong Dinh Tran. "Detecting outliers in GNSS position time series using machine learning techniques." Journal of Mining and Earth Sciences 64, no. 4 (2023): 22–30. http://dx.doi.org/10.46326/jmes.2023.64(4).03.

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The Global Navigation Satellite System (GNSS) position time series is applied in studies that require high-precision positioning, such as monitoring tectonic movements and Earth deformation. Outliers in GNSS position time series can significantly impact the accuracy of station positioning and movement parameters, leading to distorted data analysis outcomes. This study investigates the effectiveness of three machine learning techniques, including-Isolation Forest, One-Class Support Vector Machines (O-C SVM), and Local Outlier Factor (LOF) for outlier detection in GNSS position time series, with

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Alonso, Maria Teresa, Carlo Ferigato, Deimos Ibanez Segura, Domenico Perrotta, Adria Rovira-Garcia, and Emmanuele Sordini. "Analysis of ‘Pre-Fit’ Datasets of gLAB by Robust Statistical Techniques." Stats 4, no. 2 (2021): 400–418. http://dx.doi.org/10.3390/stats4020026.

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The GNSS LABoratory tool (gLAB) is an interactive educational suite of applications for processing data from the Global Navigation Satellite System (GNSS). gLAB is composed of several data analysis modules that compute the solution of the problem of determining a position by means of GNSS measurements. The present work aimed to improve the pre-fit outlier detection function of gLAB since outliers, if undetected, deteriorate the obtained position coordinates. The methodology exploits robust statistical tools for regression provided by the Flexible Statistics and Data Analysis (FSDA) toolbox, an

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Boguspayev, Nurlan, Daulet Akhmedov, Almat Raskaliyev, Alexandr Kim, and Anna Sukhenko. "A Comprehensive Review of GNSS/INS Integration Techniques for Land and Air Vehicle Applications." Applied Sciences 13, no. 8 (2023): 4819. http://dx.doi.org/10.3390/app13084819.

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Navigation systems are of interest for applications in both civilian and military vehicles. Satellite navigation systems and inertial navigation systems are the most applied in this area. They have complementary properties, which has led to a trend of integrating these systems. At present, there are several approaches to GNSS/INS integration: loosely coupled, tightly coupled and deeply coupled and many approaches to their modifications in dependence of application and arising problems with measurements, such as lack of GNSS measurements or poor quality of GNSS and INS measurements. This articl

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Barba, Paola, Belén Rosado, Javier Ramírez-Zelaya, and Manuel Berrocoso. "Comparative Analysis of Statistical and Analytical Techniques for the Study of GNSS Geodetic Time Series." Engineering Proceedings 5, no. 1 (2021): 21. http://dx.doi.org/10.3390/engproc2021005021.

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GNSS systems allow precise resolution of the geodetic positioning problem through advanced techniques of GNSS observation processing (PPP or relative positioning). Current instrumentation and communications capabilities allow obtaining geocentric and topocentric geodetic high frequencies time series, whose analysis provides knowledge of the tectonic or volcanic geodynamic activity of a region. In this work, the GNSS time series study was carried out through the use and adaptation of R packets to determine their behavior, obtaining displacement velocities, noise levels, precursors in the time s

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Wang, Wenbo, Ignacio Aguilar Sanchez, Gianluca Caparra, Andy McKeown, Tim Whitworth, and Elena Simona Lohan. "A Survey of Spoofer Detection Techniques via Radio Frequency Fingerprinting with Focus on the GNSS Pre-Correlation Sampled Data." Sensors 21, no. 9 (2021): 3012. http://dx.doi.org/10.3390/s21093012.

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Radio frequency fingerprinting (RFF) methods are becoming more and more popular in the context of identifying genuine transmitters and distinguishing them from malicious or non-authorized transmitters, such as spoofers and jammers. RFF approaches have been studied to a moderate-to-great extent in the context of non-GNSS transmitters, such as WiFi, IoT, or cellular transmitters, but they have not yet been addressed much in the context of GNSS transmitters. In addition, the few RFF-related works in GNSS context are based on post-correlation or navigation data and no author has yet addressed the

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Manito, João, and José Sanguino. "Performance Evaluation of GPS Auto-Surveying Techniques." Sensors 21, no. 21 (2021): 7374. http://dx.doi.org/10.3390/s21217374.

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With the increase in the widespread use of Global Navigation Satellite Systems (GNSS), increasing numbers of applications require precise position data. Of all the GNSS positioning methods, the most precise are those that are based in differential systems, such as Differential GNSS (DGNSS) and Real-Time Kinematics (RTK). However, for absolute positioning, the precision of these methods is tied to their reference position estimates. With the goal of quickly auto-surveying the position of a base station receiver, four positioning methods are analyzed and compared, namely Least Squares (LS), Weig

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Kalayci, Ibrahim, and Sermet Ogutcu. "A novel approach for detail surveys by the motorized GPSSIT concept in residentials areas and its application." Boletim de Ciências Geodésicas 20, no. 1 (2014): 70–83. http://dx.doi.org/10.1590/s1982-21702014000100005.

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This paper introduces the usage and reliability of Motorized GPSSIT technique which is a novel approach for surveying. It reviews the advantages of Motorized GPSSIT concept and also considers to provide GNSS accuracy in the process of surveying especially for the cases which cannot be surveyed directly by the satellite navigation systems (GPS-GNSS), such as closely packed residential areas, tall buildings, trees, etc., and also places which GNSS receivers cannot be work efficiently due to signal interferences. In this technique, all the survey instruments are installed on a bed of a pick-up tr

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Nahli, A., E. Simonetto, M. Tatin, S. Durand, L. Morel, and V. Lamour. "ON THE COMBINATION OF PSINSAR AND GNSS TECHNIQUES FOR LONG-TERM BRIDGE MONITORING." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLIII-B3-2020 (August 21, 2020): 325–32. http://dx.doi.org/10.5194/isprs-archives-xliii-b3-2020-325-2020.

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Abstract. Satellite based monitoring techniques are nowadays an emerging tool for structural health monitoring. In this work, we are interested in the study of the deformations of a cable-stayed bridge using both PsInSAR and GNSS techniques. The content of this paper is mainly dedicated to the development and optimization of GNSS and PsInSAR equipments installed on the bridge. We also present the data processing tools with the aim of providing accurate and reliable measurements that will be used to understand the structure behaviour in medium and long terms. We are dealing also with the uncert

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Yoo, Jaehyun. "Seamless Indoor–Outdoor Localization Through Transition Detection." Electronics 14, no. 13 (2025): 2598. https://doi.org/10.3390/electronics14132598.

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Indoor localization techniques operate independently of Global Navigation Satellite Systems (GNSSs), which are primarily designed for outdoor environments. However, integrating indoor and outdoor positioning often leads to inconsistent and delayed location estimates, especially at transition zones such as building entrances. This paper develops a probabilistic transition detection algorithm to identify indoor, outdoor, and transition zones, aiming to enhance the continuity and accuracy of positioning. The algorithm leverages multi-source sensor data, including WiFi Received Signal Strength Ind

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Kweon, Hyeongkeun, Myeongjun Kim, Joon-Woo Lee, Jung Il Seo, and Hakjun Rhee. "Comparison of Horizontal Accuracy, Shape Similarity and Cost of Three Different Road Mapping Techniques." Forests 10, no. 5 (2019): 452. http://dx.doi.org/10.3390/f10050452.

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Accurate spatial information on forest roads is important for forest management and harvest operations. This study evaluated the positional accuracy, shape similarity, and cost of three mapping techniques: GNSS (Global Navigation Satellite System) mapping, CAD file conversion (as-built drawing), and image warping. We chose five road routes within the national forest road system in the Republic of Korea and made digital road maps using each technique. We then compared map accuracy to reference maps made from field surveys. The mapping and field-survey results were compared using point-correspon

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Su, Hang, Tao Yang, Kan Wang, Baoqi Sun, and Xuhai Yang. "Evaluation of Precipitable Water Vapor Retrieval from Homogeneously Reprocessed Long-Term GNSS Tropospheric Zenith Wet Delay, and Multi-Technique." Remote Sensing 13, no. 21 (2021): 4490. http://dx.doi.org/10.3390/rs13214490.

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Water vapor is one of the most important greenhouse gases in the world. There are many techniques that can measure water vapor directly or remotely. In this work, we first study the Global Positioning System (GPS)- and the Global Navigation Satellite System (GLONASS)-derived Zenith Wet Delay (ZWD) time series based on 11 years of the second reprocessing campaign of International Global Navigation Satellite Systems (GNSS) Service (IGS) using 320 globally distributed stations. The amount of measurement, the local environment, and the antenna radome are shown to be the main factors that affect th

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Jin, Chengming, Baigen Cai, Jian Wang, and Allison Kealy. "DTM-Aided Adaptive EPF Navigation Application in Railways." Sensors 18, no. 11 (2018): 3860. http://dx.doi.org/10.3390/s18113860.

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The diverse operating environments change GNSS measurement noise covariance in real time, and different GNSS techniques hold different measurement noise covariance as well. Mismodelling the covariance causes undependable filtering results and even degenerates the GNSS/INS Particle Filter (PF) process, due to the fact that INS error-state noise covariance is much smaller than that of GNSS measurement noise. It also makes the majority of existing methods for adaptively adjusting filter parameters incapable of performing well. In this paper, a feasible Digital Track Map-aided (DTM-aided) adaptive

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Blatnik, Aljaž, and Boštjan Batagelj. "Evaluating GNSS Receiver Resilience: A Study on Simulation Environment Repeatability." Electronics 14, no. 9 (2025): 1797. https://doi.org/10.3390/electronics14091797.

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Global navigation satellite systems (GNSSs), with their ubiquitous coverage, have become a cornerstone of modern position, navigation, and timing (PNT) services. While their spread spectrum communication offers inherent, albeit partial, resilience against interference, GNSSs remain a prime target for malicious actors seeking to disrupt or degrade precise location and time synchronization. Jamming mitigation has been an active research area for over three decades. Despite diverse research efforts, a key weakness in the literature is the absence of rigorous, methodologically sound testing of pro

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Kačmařík, Michal, Jan Douša, Galina Dick, et al. "Inter-technique validation of tropospheric slant total delays." Atmospheric Measurement Techniques 10, no. 6 (2017): 2183–208. http://dx.doi.org/10.5194/amt-10-2183-2017.

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Abstract. An extensive validation of line-of-sight tropospheric slant total delays (STD) from Global Navigation Satellite Systems (GNSS), ray tracing in numerical weather prediction model (NWM) fields and microwave water vapour radiometer (WVR) is presented. Ten GNSS reference stations, including collocated sites, and almost 2 months of data from 2013, including severe weather events were used for comparison. Seven institutions delivered their STDs based on GNSS observations processed using 5 software programs and 11 strategies enabling to compare rather different solutions and to assess the i

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Kowalczyk, Kamil, Katarzyna Pajak, Beata Wieczorek, and Bartosz Naumowicz. "An Analysis of Vertical Crustal Movements along the European Coast from Satellite Altimetry, Tide Gauge, GNSS and Radar Interferometry." Remote Sensing 13, no. 11 (2021): 2173. http://dx.doi.org/10.3390/rs13112173.

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The main aim of the article was to analyse the actual accuracy of determining the vertical movements of the Earth’s crust (VMEC) based on time series made of four measurement techniques: satellite altimetry (SA), tide gauges (TG), fixed GNSS stations and radar interferometry. A relatively new issue is the use of the persistent scatterer InSAR (PSInSAR) time series to determine VMEC. To compare the PSInSAR results with GNSS, an innovative procedure was developed: the workflow of determining the value of VMEC velocities in GNSS stations based on InSAR data. In our article, we have compiled 110 i

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Huang, Panpan, Chris Rizos, and Craig Roberts. "Airborne Pseudolite Distributed Positioning based on Real-time GNSS PPP." Journal of Navigation 72, no. 5 (2019): 1159–78. http://dx.doi.org/10.1017/s0373463319000213.

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Airborne-Pseudolite (A-PL) systems have been proposed to augment Global Navigation Satellite Systems (GNSSs) in difficult areas where GNSS-only navigation cannot be guaranteed due to signal blockages, signal jamming, etc. One of the challenges in realising such a system is to determine the coordinates of the A-PLs to a high accuracy. The GNSS Precise Point Positioning (PPP) technique is a possible alternative to differential GNSS techniques such as those that generate Real-Time Kinematic (RTK) solutions. To enhance the A-PL positioning performance in GNSS challenged areas, it is assumed that i

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Gao, Yangjun, and Guangyun Li. "A Slowly Varying Spoofing Algorithm on Loosely Coupled GNSS/IMU Avoiding Multiple Anti-Spoofing Techniques." Sensors 22, no. 12 (2022): 4503. http://dx.doi.org/10.3390/s22124503.

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When satellite navigation terminal sensors encounter malicious signal spoofing or interference, if attention is not paid to improving their anti-spoofing ability, the performance of the sensors will be seriously affected. The global navigation satellite system (GNSS) spoofing has gradually become a research hotspot of the jammer because of its great harm and high concealment. In the face of more and more sensors coupling GNSS and inertial measurement unit (IMU) to varying degrees and configuring a variety of anti-spoofing techniques to effectively detect spoofing, even if the spoofer intends t

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Lindskog, Magnus, Martin Ridal, Sigurdur Thorsteinsson, and Tong Ning. "Data assimilation of GNSS zenith total delays from a Nordic processing centre." Atmospheric Chemistry and Physics 17, no. 22 (2017): 13983–98. http://dx.doi.org/10.5194/acp-17-13983-2017.

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Abstract. Atmospheric moisture-related information estimated from Global Navigation Satellite System (GNSS) ground-based receiver stations by the Nordic GNSS Analysis Centre (NGAA) have been used within a state-of-the-art kilometre-scale numerical weather prediction system. Different processing techniques have been implemented to derive the moisture-related GNSS information in the form of zenith total delays (ZTDs) and these are described and compared. In addition full-scale data assimilation and modelling experiments have been carried out to investigate the impact of utilizing moisture-relate

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Groves, Paul D., and Christopher J. Mather. "Receiver Interface Requirements for Deep INS/GNSS Integration and Vector Tracking." Journal of Navigation 63, no. 3 (2010): 471–89. http://dx.doi.org/10.1017/s0373463310000093.

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Vector tracking of global navigation satellite systems (GNSS) signals and deeply integrating GNSS with an inertial navigation system (INS) improve robustness and accuracy in poor GNSS signal-to-noise environments. Both require a dedicated interface between the GNSS receiver and the navigation processor to enable the GNSS receiver to output the correlator measurements and input numerically-controlled oscillator (NCO) commands. This paper investigates the requirements for such an interface. Data latency is analysed for a range of different stand-alone GNSS vector tracking and deep INS/GNSS integ

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Dobelis, Didzis, and Jānis Zvirgzds. "NETWORK RTK PERFORMANCE ANALYSIS: A CASE STUDY IN LATVIA." Geodesy and cartography 42, no. 3 (2016): 69–74. http://dx.doi.org/10.3846/20296991.2016.1226383.

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Nowadays the RTK (Real Time Kinematic) method for positioning is used in daily life by different consumers for many purposes. Several different RTK correction techniques are used, starting from single site to network approaches. The GNSS market is filled with receivers from different manufacturers and different capabilities. In this paper we assess the stability of the reference station network transmitted RTK correction. Two different surveying class GNSS receivers in combination with four varied RTK correction techniques under diverse observation conditions are analyzed. This study has been

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Dieng, Mbaye, Siva Sankar, Pingping Ni, et al. "Solution-Processed Functionalized Graphene Film Prepared by Vacuum Filtration for Flexible NO2 Sensors." Sensors 23, no. 4 (2023): 1831. http://dx.doi.org/10.3390/s23041831.

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Large-scale production of graphene nanosheets (GNSs) has led to the availability of solution-processable GNSs on the commercial scale. The controlled vacuum filtration method is a scalable process for the preparation of wafer-scale films of GNSs, which can be used for gas sensing applications. Here, we demonstrate the use of this deposition method to produce functional gas sensors, using a chemiresistor structure from GNS solution-based techniques. The GNS suspension was prepared by liquid-phase exfoliation (LPE) and transferred to a polyvinylidene fluoride (PVDF) membrane. The effect of non-c

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Krishna Samalla and P. Naveen Kumar. "Global Navigation Satellite System in the Civil Surveillance." ACS Journal for Science and Engineering 4, no. 1 (2024): 1–10. http://dx.doi.org/10.34293/acsjse.v4i1.100.

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In the contemporary landscape dominated by widespread Global Navigation Satellite Systems (GNSS) usage for various navigational applications across aerial and terrestrial domains, route determination efficiency is increasingly reliant on the accuracy of inputs derived from GNSS, primarily facilitated by GPS and associated modules. However, the rising occurrence of spoofing mechanisms has introduced distortions in this realm, necessitating thorough examination. The discernible impact of GNSS signals on seamless navigation underscores their pivotal role in precise path determination. Yet, sophis

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Fellner, Andrzej, and Henryk Jafernik. "Implementation of Satellite Techniques in the Air Transport." Reports on Geodesy and Geoinformatics 100, no. 1 (2016): 39–53. http://dx.doi.org/10.1515/rgg-2016-0005.

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Abstract The article shows process of the implementation satellite systems in Polish aviation which contributed to accomplishment Performance-Based Navigation (PBN) concept. Since 1991 authors have introduced Satellite Navigation Equipment in Polish Air Forces. The studies and researches provide to the Polish Air Force alternative approaches, modernize their navigation and landing systems and achieve compatibility with systems of the North Atlantic Treaty Organization (NATO) and International Civil Aviation Organization (ICAO). Acquired experience, conducted military tests and obtained results

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Erenoglu, R. Cuneyt, Mehmet Ali Yucel, Atinc Pirti, and D. Ugur Sanli. "On the performance of GNSS levelling over steep slopes." Boletim de Ciências Geodésicas 18, no. 4 (2012): 645–60. http://dx.doi.org/10.1590/s1982-21702012000400008.

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In geodetic applications variety, one of the main current focuses is recently to determine the heights of ground stations with high accuracy. Specially the possibility of acquiring 3D information of the point positioning with high accuracy is opening up new strategies of investigating the heighting. Global Navigation Satellite System (GNSS) for 3D positioning is undergoing rapid developments and GNSS heighting can be an alternative to terrestrial techniques of height measurements. This paper presents a research study on the use of GNSS heighting in the case of steep slopes and multipath issue.

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Zárate, Belizario A., Rachid El Hamdouni, and Tomás Fernández. "GNSS and RPAS Integration Techniques for Studying Landslide Dynamics: Application to the Areas of Victoria and Colinas Lojanas, (Loja, Ecuador)." Remote Sensing 13, no. 17 (2021): 3496. http://dx.doi.org/10.3390/rs13173496.

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This research tests the application of GNSS and RPAS techniques to the spatiotemporal analysis of landslide dynamics. Our method began by establishing non-permanent GNSS networks on the slope surfaces to perform periodic measurements by differential GNSS. Similarly, RPAS flights were made to acquire high-resolution images, which were oriented and georeferenced using ground control points and structure-from-motion algorithms to ultimately obtain digital surface models and orthophotos. Based on GNSS measurements, the direction and velocity of displacements were accurately calculated, and orthoph

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Magsi, Amjad Hussain, Luis Enrique Díez, and Stefan Knauth. "Continuous High-Precision Positioning in Smartphones by FGO-Based Fusion of GNSS–PPK and PDR." Micromachines 15, no. 9 (2024): 1141. http://dx.doi.org/10.3390/mi15091141.

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The availability of raw Global Navigation Satellites System (GNSS) measurements in Android smartphones fosters advancements in high-precision positioning for mass-market devices. However, challenges like inconsistent pseudo-range and carrier phase observations, limited dual-frequency data integrity, and unidentified hardware biases on the receiver side prevent the ambiguity resolution of smartphone GNSS. Consequently, relying solely on GNSS for high-precision positioning may result in frequent cycle slips in complex conditions such as deep urban canyons, underpasses, forests, and indoor areas

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Gyagenda, Nasser, Jasper V. Hatilima, Hubert Roth, and Vadim Zhmud. "A review of GNSS-independent UAV navigation techniques." Robotics and Autonomous Systems 152 (June 2022): 104069. http://dx.doi.org/10.1016/j.robot.2022.104069.

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Juang, Jyh-Ching, Sheng-Hsiung Ma, and Chen-Tsung Lin. "Study of GNSS-R Techniques for FORMOSAT Mission." IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 9, no. 10 (2016): 4582–92. http://dx.doi.org/10.1109/jstars.2016.2575069.

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Lohan, Elena Simona, Diego Alonso de Diego, Jose A. Lopez-Salcedo, Gonzalo Seco-Granados, Pedro Boto, and Pedro Fernandes. "Unambiguous Techniques Modernized GNSS Signals: Surveying the solutions." IEEE Signal Processing Magazine 34, no. 5 (2017): 38–52. http://dx.doi.org/10.1109/msp.2017.2711778.

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Park, Je-hong. "GNSS Techniques for Enhancing Flight Safety of UAS." Journal of Advanced Navigation Technology 21, no. 1 (2017): 58–65. http://dx.doi.org/10.12673/jant.2017.21.1.58.

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Boutiouta, S., and A. Lahcene. "Preliminary study of GNSS meteorology techniques in Algeria." International Journal of Remote Sensing 34, no. 14 (2013): 5105–18. http://dx.doi.org/10.1080/01431161.2013.786850.

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Ayfantopoulou, Georgia, Marios Nikolaos Militsis, Josep Maria Salanova Grau, and Socrates Basbas. "Improving Map Matching of Floating Car Data with Artificial Intelligence Techniques." Information 13, no. 11 (2022): 508. http://dx.doi.org/10.3390/info13110508.

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Map matching is a crucial data processing task for transferring measurements from the dynamic sensor location to the relevant road segment. It is especially important when estimating road network speed by using probe vehicles (floating car data) as speed measurement sensors. Most common approaches rely on finding the closet road segment, but road network geometry (e.g., dense areas, two-way streets, and superposition of road segments due to different heights) and inaccuracy in the GNSS location (up to decades of meters in urban areas) can wrongly allocate up to 30% of the measurements. More ad

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Gunathilaka, Malavige Don Eranda Kanchana, Indula Karunathilaka, and Nihal Perera. "Developing an Algorithm to Improve Positioning Accuracy of Low-Cost Global Navigation Satellite System Modules." Journal of Applied Geospatial Information 7, no. 2 (2023): 1050–58. http://dx.doi.org/10.30871/jagi.v7i2.6790.

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Global Navigation Satellite System (GNSS) technology is the most widely used technique for obtaining positioning and navigation information for various applications. However, GNSS is not an error free technology. Differential GNSS techniques are used to mitigate these errors and different commercial brands of GNSS receivers have been developed to avoid some errors where quality and performance depends heavily on the price tag of such advance GNSS receivers due to the fact that technological capabilities adopted and embedded in each single GNSS receiver. There are user cases where the few or mo

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