US 2011/0298655 A1Published application

Synthetic-aperture radar system and operating method for monitoring ground and structure displacements suitable for emergency conditions

AssigneeELLEGI S.r.l..

InventorsDavide Leva, Carlo Rivolta

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Abstract

A synthetic-aperture radar system, and related operating method, for the monitoring of ground and structure movements, particularly suitable for emergency conditions, characterized by a ground based platform with polarimetric capabilities, that able to quickly acquire, embeddedly process and post-process data by a novel data acquisition “On the Fly” mode of operation, reducing by at least an order of magnitude the data acquisition time. The inventive system characteristics allows to achieve on-field measurement results on three-dimensional maps georeferenced to absolute coordinate systems (WGS84, Gauss-Boaga, and so on). The operating method includes the step of installing the system, the acquiring of the first measurements, the quick data processing and post-processing to provide sub-millimetric precision georeferenced bi-dimensional and three-dimensional displacement maps for the objects belonging to the monitored scenario, with an improved performance and in a measurement time compatible to that required in an emergency condition, with an higher degree of integration with other sensors and autonomously and embeddendly.

Claims7

Dependent claims

A synthetic aperture radar system for monitoring ground and structure movements, characterized by a ground based platform equipped with an interferometric and polarimetric sensor able to perform measurements while moving at a constant speed;

said system is equipped with an embedded power supply and connection unit, a linear positioner provided with a movable carriage, and a measuring head;
the system is also provided with the following operating modules:
an embedded main system control unit, an embedded electromagnetic wave generator and receiver, a motor control and managing unit, an embedded UPS module including an embedded buffer battery;
an I/O managing module, an embedded calibrated videocamera or photocamera, an embedded GSM/GPRS/UMTS modem, an embedded GPS receiver, an embedded display and an alphanumeric keypad, an embedded LAN module, an embedded WLAN module, an embedded mass storage module, and embedded standard interfaces for assembling laser scanners and topographic instrument reflectors;
all the system mechanical components being provided with unique reference marks and points or connections allowing them to be assembled, disassembled and replaced within a dimensional tolerance limit range as required by application.

2 more elements

Dependencies are inferred from the claim text.