User's Guide

Mod: MDM/011/M4 Rev 2
IDS GeoRadar User Guide QGG/2020/002 Rev. 1.1
4.3.6.1 Doppler Radar technology detect the movement only along the Line of Sight (LoS). Rocks falling perpendicularly or
close to the perpendicular to the radar LoS could be underestimated or even undetected. The number of radar to be
installed and their locations must be carefully evaluated in order to minimize this effect, although, due to installation
constrains, there could be residual areas on the slope with unfavourable LoS. The user is responsible for the
evaluation of the number of radars to be installed as well as for the decision of their location. It´s the user´s
responsibility to decide on a proper installation plan accordingly.
4.3.7 Rock speed
4.3.7.1 RockSpot system is designed to detect moving object over a minimum speed threshold. Rocks falling with a line of
sight velocity under the minimum detectable speed (see data sheet) cannot be detected and hence, it´s out of the
responsibility/liability of IDS GeoRadar if such rock falls are not detected.
4.3.8 Simultaneous events
4.3.8.1 RockSpot has been designed to detect and track a single event per distance. However, the system can correctly handle
multiple events simultaneously, as long as their instantaneous distances from the sensor differ by at least 8 m from
each other. Multiple events occurring simultaneously at the same distance, might reduce system detection and
tracking performances and hence, there´s no liability/responsibility whatsoever of IDS GeoRadar in case of multiple
events which occur simultaneously.
4.4 Environmental limitations
4.4.1 Operating temperatures
4.4.1.1 RockSpot system is designed to operate in a wide temperature range, however operation close the operating
temperature border could decrease the intrinsic radar sensitivity. Operation outside the system specifications (see
data sheet) is not guaranteed.
4.4.2 Atmospheric events
4.4.2.1 RockSpot system incorporates state-of-the-art algorithms for the correction of atmospheric-induced false alarms.
However, it must be noted that modelling of real phenomena like atmospheric events leads to an approximation of
real-world physics, which may not be always effective, and could introduce false alarms, especially under particularly
strong or sudden atmospheric variations.