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Related papers: Rejection of Smooth GPS Time Synchronization Attac…

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This paper introduces the Time Synchronization Attack Rejection and Mitigation (TSARM) technique for Time Synchronization Attacks (TSAs) over the Global Positioning System (GPS). The technique estimates the clock bias and drift of the GPS…

Systems and Control · Computer Science 2018-02-07 Ali Khalajmehrabadi , Nikolaos Gatsis , David Akopian , Ahmad F. Taha

The operation of critical infrastructures such as the electrical power grid, cellphone towers, and financial institutions relies on precise timing provided by stationary GPS receivers. These GPS devices are vulnerable to a type of spoofing…

Systems and Control · Electrical Eng. & Systems 2024-09-23 Junhwan Lee , Ahmad F. Taha , Nikolaos Gatsis , David Akopian

Many operations in power grids, such as fault detection and event location estimation, depend on precise timing information. In this paper, a novel Time Synchronization Attack (TSA) is proposed to attack the timing information in smart…

Cryptography and Security · Computer Science 2012-04-03 Zhenghao Zhang , Shuping Gong , Aleksandar D. Dimitrovski , Husheng Li

A novel time synchronization attack (TSA) on wide area monitoring systems in smart grid has been identified in the first part of this paper. A cross layer detection mechanism is proposed to combat TSA in part II of this paper. In the…

Cryptography and Security · Computer Science 2012-04-03 Zhenghao Zhang , Matthew Trinkle , Aleksandar D. Dimitrovski , Husheng Li

Many operations in power grids, such as fault detection and event location estimation, depend on precise timing information. In this paper, a novel time stamp attack (TSA) is proposed to attack the timing information in smart grid. Since…

Cryptography and Security · Computer Science 2012-01-13 Shuping Gong , Zhenghao Zhang , Husheng Li , Aleksandar D. Dimitrovski

To mitigate spoofing attacks targeting global navigation satellite systems (GNSS) receivers, one promising method is to rely on alternative time sources, such as network-based synchronization, in order to detect clock offset discrepancies…

Cryptography and Security · Computer Science 2022-02-23 M. Spanghero , P. Papadimitratos

We present a method for Temporal Difference (TD) learning that addresses several challenges faced by robots learning to navigate in a marine environment. For improved data efficiency, our method reduces TD updates to Gaussian Process…

Machine Learning · Computer Science 2018-10-03 John Martin , Jinkun Wang , Brendan Englot

In this paper, we focus on the localization of a passive source from time difference of arrival (TDOA) measurements. TDOA values are computed with respect to pairs of fixed sensors that are required to be accurately time-synchronized. This…

Systems and Control · Electrical Eng. & Systems 2020-09-16 Marguerite Delcourt , Jean-Yves Le Boudec

Prior research has demonstrated that global positioning system (GPS) spoofing attacks on phasor measurement units (PMUs) can cripple power system operation. This paper provides an experimental evidence of the feasibility of such an attack…

Cryptography and Security · Computer Science 2021-10-08 Fakhri Saadedeen , Anamitra Pal

The limited or no protection for civilian Global Navigation Satellite System (GNSS) signals makes spoofing attacks relatively easy. With modern mobile devices often featuring network interfaces, state-of-the-art signals of opportunity (SOP)…

Cryptography and Security · Computer Science 2025-06-17 Wenjie Liu , Panos Papadimitratos

Low-power wide-area network technologies such as LoRaWAN are promising for collecting low-rate monitoring data from geographically distributed sensors, in which timestamping the sensor data is a critical system function. This paper…

Networking and Internet Architecture · Computer Science 2021-07-13 Chaojie Gu , Linshan Jiang , Rui Tan , Mo Li , Jun Huang

This work proposes a global navigation satellite system (GNSS) spoofing detection and classification technique for single antenna receivers. We formulate an optimization problem at the baseband correlator domain by using the Least Absolute…

Signal Processing · Electrical Eng. & Systems 2020-04-30 Erick Schmidt , Nikolaos Gatsis , David Akopian

The Phasor Measurement Unit (PMU) is an important metering device for smart grid. Like any other Intelligent Electronic Device (IED), PMUs are prone to various types of cyberattacks. However, one form of attack is unique to the PMU, the…

Systems and Control · Electrical Eng. & Systems 2023-09-14 Imtiaj Khan , Virgilio Centeno

The GPS is vulnerable to GPS spoofing attack (GSA), which leads to disorder in time and position results of the GPS receiver. In power grids, phasor measurement units (PMUs) use GPS to build time-tagged measurements, so they are susceptible…

Systems and Control · Electrical Eng. & Systems 2023-09-12 Mohammad Sabouri , Sara Siamak , Maryam Dehghani , Mohsen Mohammadi , Mohammad Hassan Asemani

Temporal Action Localization (TAL) is a complex task that poses relevant challenges, particularly when attempting to generalize on new -- unseen -- domains in real-world applications. These scenarios, despite realistic, are often neglected…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 David Pujol-Perich , Albert Clapés , Sergio Escalera

Time-series anomaly detection (TSAD) is a critical component in monitoring complex systems, yet modern deep learning-based detectors are often highly sensitive to localized input corruptions and structured noise. We propose ARTA…

Machine Learning · Computer Science 2026-05-07 Hadi Hojjati , Narges Armanfard

Low-power wide-area network technologies such as LoRaWAN are promising for collecting low-rate monitoring data from geographically distributed sensors, in which timestamping the sensor data is a critical system function. This paper…

Networking and Internet Architecture · Computer Science 2020-04-14 Chaojie Gu , Linshan Jiang , Rui Tan , Mo Li , Jun Huang

We consider time synchronization attack against multi-system scheduling in a remote state estimation scenario where a number of sensors monitor different linear dynamical processes and schedule their transmissions through a shared collision…

Systems and Control · Computer Science 2019-05-06 Ziyang Guo , Yuqing Ni , Wing Shing Wong , Ling Shi

Autonomous vehicles (AVs) rely on the Global Positioning System (GPS) or Global Navigation Satellite Systems (GNSS) for precise (Positioning, Navigation, and Timing) PNT solutions. However, the vulnerability of GPS signals to intentional…

Cryptography and Security · Computer Science 2024-01-04 Sagar Dasgupta , Abdullah Ahmed , Mizanur Rahman , Thejesh N. Bandi

Precise localization is one key element of the Internet of Things (IoT). Especially concepts for position estimation when Global Navigation Satellite Systems (GNSS) are unavailable have moved into the focus. One crucial component for…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-06-09 Thomas Maul , Sebastian Klob , Joerg Robert
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