NON-DESTRUCTIVE MONITORING STRATEGIES OF HISTORICAL CONSTRUCTIONS AND TANGIBLE CULTURALE HERITAGE BASED ON GROUND-BASED SAR INTERFEROMETRY

http://doi.org/10.24057/2414-9179-2018-1-24-528-535

View or download the article (Eng)

About the Authors

Giovanni Nico

Consiglio Nazionale delle Ricerche, Istituto per le Applicazioni del Calcolo,
Via Amendola, 122/O, 75100, Bari,
E-mail: g.nico@ba.iac.cnr.it

Saint Petersburg State University,
10th line V.O., 33, 199178, Saint Petersburg, Russia,
E-mail: giovanni.nico@spbu.ru

Olimpia Masci

DIAN srl,
Via G.B Pirelli sn, Z.I. La Martella, 75100 Matera, Italy,
E-mail: o.masci@dianalysis.eu

Evgeny Panidi

Saint Petersburg State University,
10th line V.O., 33, 199178, Saint Petersburg, Russia,
E-mail: panidi@ya.ru, e.panidi@spbu.ru

Abstract

Tangible cultural heritage, historical buildings and bridges have an important cultural significance and economic value within the tourism industry and the identity of local communities. The preservation and the assessment of their structural health are important issues which call for multidisciplinary teams and non-invasive monitoring techniques due the uniqueness and historical values of these man-made structures. Numerical models used to study the structural behavior of these historical buildings and bridges under different adverse conditions (e.g. intense traffic flow, natural hazard events, chemical pollution or simply aging) can benefit from accurate measurements of mechanical properties such as displacements and vibration frequencies, both bringing information about the static and dynamical behavior of such historical constructions. This work presents some results of structural monitoring of man-made structures by Ground-based Synthetic Aperture Radar (GBSAR) interferometry techniques. A ku-band GBSAR interferometer is used to derive displacement maps of the monitored target, with a sub-millimeter precisions. Furthermore, GBSAR interferometry is used to measure vibration frequencies of vertical and horizontal structures, such bell towers, towers, bridges and historical walls. The main advantage of this technique is its capability to operate in any weather and sun-illumination condition, in a truly Non-Destructive Monitoring (NDM) approach, i.e. without installing any reflector on the observed target.

Keywords

Synthetic Aperture Radar (SAR), Ground-based SAR (GBSAR), SAR interferometry, Non-Destructive Monitoring (NDM), Structural Health Monitoring (SHM), metrology, displacement, vibration frequency, monuments, cultural heritage.

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For citation: Nico G., Masci O., Panidi E. NON-DESTRUCTIVE MONITORING STRATEGIES OF HISTORICAL CONSTRUCTIONS AND TANGIBLE CULTURALE HERITAGE BASED ON GROUND-BASED SAR INTERFEROMETRY Proceedings of the International conference “InterCarto. InterGIS”. 2018;24(1):528–535 http://doi.org/10.24057/2414-9179-2018-1-24-528-535