Walter Matta

Link Campus University · Reserach

In many Space Surveillance and Tracking (SST) operations, from the cataloguing of trackable space objects to orbit determination and correlation, ground-based measurements play a central role. In this frame, the monitoring and, if necessary, the update of the sensors' calibration parameters is of utmost importance to correctly evaluate the position...

The scope of cyber security becomes wider and wider with time and cyber threats rapidly change. This strongly impacts the performance of companies whose success heavily depends on the health of the underlying network infrastructure. The ability to have a clear understanding of the security exposure of a network in its entirety hence becomes part of...

In this paper, we break down some aspects of modern surveillance systems within the context of the Wide InTegration of sensor Networks to Enable Smart Surveillance (WITNESS) NATO project. A brief description of the architecture of the system is presented, as well as several use case scenarios which WITNESS will cater for.

Considering the number of airports in the world, the 100 of millions of people who work at or pass through them and the relatively small amount of vulnerabilities, which have come to fruition to date, it must be concluded that airports already have a largely adequate level of security and resilience. Recent attacks in Brussels and Paris have, howev...

In this paper, we break down some aspects of modern surveillance systems within the context of the Wide InTegration of sensor Networks to Enable Smart Surveillance (WITNESS) NATO project. A brief description of the architecture of the system is presented, as well as several use case scenarios which WITNESS will cater for.

This paper focuses on general considerations and ideas on a Maritime Situational Awareness (MSA) system concept addressing specifically the surveil-lance of the Mediterranean Sea. It presents analysis of the main potentials and lim-its of existing Maritime Surveillance Systems (MSSs) operating on the Mediterra-nean Sea and identified technology gap...

An advanced method for maintenance cost reduction and structural safety improvement of helicopters frame is presented. In this approach, residual life evaluation is based on the real time acquisition of the crack damage, by means of dedicated sensor network, and a focused FE model of the fuselage. Recently, the European Defence Agency has proposed...

The paper presents a gain-scheduling approach to the control of a high-speed train pantograph. The feed-back law design is based on optimal control with frequency dependent cost functionals. Two active control schemes are discussed. Nonadaptive frequency-shaping control gives good performances for disturbances in a wide range of frequencies. Distur...