Recently, several global navigation satellite systems (GNSS) emerged following the
transformative technology impact of the first GNSS-US global positioning system (GPS). The …

This article discusses theoretical and practical aspects of direct position estimation (DPE) of
global navigation satellite system (GNSS) receivers. DPE is an alternative approach to the …

This paper establishes a fundamental theory of secure clock synchronization. Accurate clock
synchronization is the backbone of systems managing power distribution, financial …

We propose a novel algorithm for the joint estimation of spoofer location (LS) and GPS time
using multireceiver direct time estimation (MRDTE). To achieve this, we utilize the geometry …

Consider the problem of mitigating the impact on data integrity of phasor measurement units
(PMUs) given a GPS spoofing attack. We present a sparse error correction framework to …

Direct GPS Positioning (DP) is a robust method that estimates the GPS navigation solution
directly from the received GPS signal. In contrast, traditional methods, such as scalar …

Direct Position Estimation (DPE) is a rather new Global Navigation Satellite System (GNSS)
technique to estimate the user position, velocity and time (PVT) directly from correlation …

Time-synchronized phasor measurements from phasor measurement units (PMUs) are
valuable for real time monitoring and control. However, their reliance on civilian GPS signals …

Modern power distribution systems are incorporating Phasor Measurement Units (PMUs) to
measure the instantaneous voltage and current phasors at different nodes in the power grid …

This chapter presents an innovative concept that helps overcome some of the critical
challenges and limitations in standard global navigation satellite system (GNSS) position …