Perbandingan ralat ‘multipath’ bagi data cerapan GPS stesen MASS dan stesen RTK by Mardina Abdullah, Norbahiah Misran, Nor Nadira M. Ariff, M. Fazrin Abdullah

“…This research also identifies which station between MASS station and GPS RTK reference stations are the most and least affected by multipath effect of both pseudo ranges at L1 (1575.42 MHz) and L2 (1227.60 MHz) of GPS signals. TEQC (Translating, Editing and Quality Checking) software is used to obtain multipath errors for both GPS signals. …”
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Optimal GPS Acquisition Algorithm in Severe Ionospheric Scintillation Scene by Mengying Lin, Yimei Luo, Xuefen Zhu, Gangyi Tu, Zhengpeng Lu

“…The Global Positioning System (GPS) plays an important role in navigation and positioning services. When GPS signals propagate through a complex space environment, they are susceptible to interference of ionospheric scintillation. …”
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Demonstration of enhanced long-range cosmic time synchronization for wireless and secure dissemination of standard time by Hiroyuki K. M. Tanaka

“…Moreover, since GPS signals are unencrypted, the possibility of a signal spoofing attack remains a continuous threat. …”
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Coarse-to-fine visual autonomous unmanned aerial vehicle landing on a moving platform by Qiangqiang Cui, Min Liu, Xiaoyin Huang, Ming Gao

“…In addition, it can achieve accurate landing in different operating environments without external real-time kinematic global positioning system (RTK-GPS) signals, and the average landing error is 11.5 cm, which is similar to the landing error when using RTK-GPS signals as the ground truth.…”
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GPS spoofing and anti-spoofing by Low, Jin Hong

“…GPS Spoofing is an attack where actual GPS signals are interfered with and altered according to the attacker’s needs. …”
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The modern receivers of a reference frequency and time signals (receivers-comparators) by V.V. Akulov, A.I. Pikhtelev

“…The principles of a construction of a modern receivers of a reference frequency and time signals, included GLONASS/GPS signals, are considered in this paper. A mathematical model of the synchronization system of the receiver-comparator was proposed, and the results of its analysis and its modeling was leaded.…”
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Implementation of authentication scheme for GNSS signal using mobile phone by Chua, You Liang

“…In this research paper, we proposed a novel approach towards an authentication scheme for GNSS signals, using Chameleon Hash Keychain for effective, efficient and secure protection, and allowing clients to authenticate their current GPS signals through an Android interface application.…”
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GPS data for solar irradiance by Tan, Theodore

“…In this study, GPS data would be used to process cloud coverage by using GIPYS program to extract the data to get information like zenith wet delay and precipitable water vapor incurred by GPS signals.…”
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Tech factor challenge competition ST electronics : UAV Report by Zhai, Deqing

“…The software implementations are the APM PID parameters gathering, GPS signals interpretations, live streaming from my android phone, MATLAB experiments, video feature capturing and PWM generations. …”
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Developing a Solution for Mobility and Distribution Analysis Based on Bluetooth and Artificial Intelligence by Marius Minea, Cătălin Dumitrescu, Ilona Mădălina Costea, Ionuț Cosmin Chiva, Augustin Semenescu

“…The solution may also be suited for indoor localization where GPS signals are usually weak or missing; for example, in public places such as subway stations or trains, hospitals, airport terminals and so on. …”
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Applications of google maps, GPS and GIS in managing taxable property in local authority (case study: Majlis Bandaraya Melaka Bersejarah) by Daud, Dzurllkanian @ Zulkarnain

“…A geographic information system (GIS) is a system designed to capture, store, manipulate, analyze, manage, and present three-dimensional or geographic data. GPS signals include reaching signals, used to measure the distance to the satellite, and navigation messages. …”

GPS Spoofing Attacks in FANETs: A Systematic Literature Review by Ala Altaweel, Hena Mukkath, Ibrahim Kamel

“…In which, the legitimate and not-encrypted civilian GPS signals are overridden by counterfeit signals to deceive the UAVs to collide or to be hijacked. …”
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A simulink toolbox for software GPS receiver by Wang, Wei

“…It acquires, processes digitized GPS signals, and eventually plots out the geographical location of receiver in latitude-longitude coordinate system. …”
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Trilateration of location with celestial bodies using an android application by Sartin, Alexander Pacer

“…As accurate and consistent as the GPS is, there are some cases where GPS signals may be weak or inconsistent. Thus, relying on other forms of determining one’s location such as celestial navigation can be used instead of a GPS. …”
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A Case Study Analysis for Designing a Lunar Navigation Satellite System with Time Transfer from the Earth GPS by Sriramya Bhamidipati, Tara Mina, Grace Gao

“…In our prior work, we developed an LNSS architecture that leverages intermittently available Earth-GPS signals to compute timing corrections, thereby alleviating the need for a higher-grade onboard clock. …”
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Time Transfer From GPS for Designing a SmallSat-Based Lunar Navigation Satellite System by Sriramya Bhamidipati, Tara Mina, Grace Gao

“…We propose an LNSS design with time transfer from intermittently available GPS signals wherein we design a Kalman filter to estimate timing corrections for a low-SWaP clock. …”
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Spoofing Mitigation of GPS Receiver using Least Mean Squares-Based Adaptive Filter by M. R. Mosavi, Z. Shokhmzan

“…The Global Positioning System (GPS) signals are very weak signal over wireless channels, so they are vulnerable to in-band interferences. …”
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Precise Positioning and Timekeeping in a Lunar Orbit via Terrestrial GPS Time-Differenced Carrier-Phase Measurements by Keidai Iiyama, Sriramya Bhamidipati, Grace Gao

“…There is a growing interest in the use of legacy terrestrial Global Positioning System (GPS) signals to determine the precise positioning and timing onboard a lunar satellite. …”
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Crowd sourcing and pedestrian dead reckoning for indoor localization by Kang, Edan Bao Feng

“…Indoor positioning systems are complicated by the lack of available GPS signals. Current solutions and implementations to solve this gap in information is filled by Bluetooth and Wi-Fi. …”
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Positioning and identification technologies : hardware and firmware for next generation positioning and wireless communication system by Law, Choi Look, Ling, Keck Voon, Guan, Yong Liang

“…With complete loss of GPS signals up to 10 seconds of GPS outages, position error is shown to be less than 10 meters.…”
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