UAV-DAP (unmanned aerial vehicle-digital aerial photogrammetry) has become one of the
most widely used geomatics techniques in the last decade due to its low cost and capacity to …

Application of new technologies and operational methodologies in mining sector targets to
obtain a beneficial outcome in the long term. Instrumentation and monitoring systems for …

Efforts in the domain of building studies involve the use of a diverse array of geomatic
sensors, some providing invaluable information in the form of three-dimensional point …

La Palma is one of the youngest of the Canary Islands, and historically the most active. The
recent activity and unrest in the archipelago, the moderate seismicity observed in 2017 and …

In the geomatics field, modelling and georeferencing complex speleological structures are
some of the most challenging issues. The use of conventional survey methods (for example …

Conventional wavelet transform (WT) filters have less effect on de-noising and correction of
a north-seeking gyroscope sensor exposed to vibration, since the optimal wavelet …

To eliminate the noise interference caused by continuous external environmental
disturbances on the rotor signals of a maglev gyroscope, this study proposes a noise …

The immersed tunnel is composed of elements which are prefabricated elsewhere and
floated to the tunnel site to be sunk into the prepared trench. Each element and the closure …

The design of surveying networks inside tunnels is of crucial importance because an optimal
design enables the network to fulfill its required quality parameters, for instance, precision …

Since gyro azimuths are affected by the complex environmental factors that are present in
underground spaces, the adjustment model should take this into account. In general, gyro …