Scientific and Technical Literature

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Publications represent one of the most important forms of sharing knowledge generated within a company, in collaboration with other companies or with public research organizations.
This page presents Leonardo's technical-scientific production, relating to conference proceedings, book chapters, articles in specialized journals.
The list contains references to the work carried out since 2012 by Leonardo researchers, engineers and technicians, and authorized for publication.

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Version: 1.0 Approved

LDO-ID 2019-05-20-03

Title A MIMO architecture for SaR application

Abstract

This paper propose a MIMO architecture proposed for a S-band VTS coastal radar aiming to detect, up to 10 km range, small RCS targets (<1m2) in sea state 0-5, due to rubber boats of illicit trafficking of humans and materials in SaR (Search and Rescue Maritime) Surveillance systems (RANGER system). The radar architecture is formed of a filled RX ULA (Uniform Linear Array) with Mr elements, and of a co-located TX ULA with Mt elements separated by l=Mr*l/ 2. This basic configuration is equivalent to a uniform filled ULA with MrMt elements and MIMO orthogonality of TX-s waveforms is obtained by Time Domain Multiplexing of the transmitted large band FM chirp between different TX-s. The potential leakage between Doppler domain and azimuth domains put some constrains on MIMO processing. In particular it is shown how a pseudo-random law of TX array scanning may mitigate this leakage. It is then shown that a small boat may be well detected thank to fine range resolution (large bandwidth), narrow beam (large TX array aperture) and fine Doppler processing. Finally it is shown that a bi-static architecture may further improve detection performance due to both clutter cell and bi-static clutter Reflectivity reduction.

Authors Prodi Francesco, Pierno Luigi, Farina Alfonso

Type Paper for Seminar/Symposium/Conference

Media MSAW 2019 - NATO Maritime Situational Awareness Workshop (08-10 Ottobre 2019, c/o Villa Marigola, Lerici, Italy)

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Anno 2019

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