The integration of Global Navigation Satellite Systems (GNSS) with Inertial Navigation
Systems (INS) has been very actively researched for many years due to the complementary …

Multiconstellation satellite navigation is critical in signal‐degraded environments where
signals are strongly corrupted. In this case, the use of a single GNSS system does not …

The stochastic model, together with the functional model, form the mathematical model of
observation that enables the estimation of the unknown parameters. In Global Navigation …

The ionosphere is the main error source in GNSS measurements and in extreme cases can
degrade the positioning significantly, with errors exceeding 100 m; therefore, modelling and …

Land navigation includes the methods to determine the time varying position and velocity of
a moving object on Earth surface using suitable measurements; it is typically performed in …

Since its initial operation in 1982, GLONASS has completed 35 years of service and has
passed through eventful journey. Being the first global alternative to GPS, it generated …

In critical locations as urban or mountainous areas satellite navigation is difficult, above all
due to the signal blocking problem; for this reason satellite systems are often integrated with …

Galileo is a global civil navigation satellite system developed in Europe as an alternative to
the GPS controlled by the US Department of Defense and GLONASS controlled by Russian …

Many studies have been conducted on RAIM to use GNSS navigation systems in those
fields where very strict performances are required. In safety-of-life applications, such as …

GNSS (Global Navigation Satellite Systems) are currently the most widespread devices for
providing PVT (Position, Velocity and Time), in a wide range of applications, including air …