Underwater robot positioning and navigation achieve autonomous underwater robot
movement based on the premise that positioning obtains the coordinates of the relative …

The ionosphere has been the most challenging source of error to mitigate within the
community of global navigation satellite system (GNSS)-based safety-critical systems. Users …

Critical government and industry sectors (such as law enforcement, transportation,
communication, and finance) are growing increasingly dependent on Global Navigation …

ABSTRACT A practical technique is proposed to authenticate civil GPS signals. The
technique combines cryptographic authentication of the GPS navigation message with …

Advances in the miniaturization, computational capabilities, and cost reduction of
semiconductor technology have made global navigation satellite systems (GNSSs) the …

Multipath interference and non-line-of-sight (NLOS) reception are major error sources when
using global navigation satellite systems in urban environments. A promising approach to …

This article deals with the non-line-of-sight (NLOS) reception issue in the field of global
navigation satellite system (GNSS). The NLOS reception has attracted a significant amount …

Ionospheric scintillation is the physical phenomena affecting radio waves coming from the
space through the ionosphere. Such disturbance is caused by ionospheric electron-density …

The research regarding global positioning system (GPS) vector tracking (VT), based on a
software-defined receiver (SDR), has been increasing in recent years. The strengths of VT …

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 …