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The d-Radar: a bistatic system based on conformal arrays

Published online by Cambridge University Press:  03 March 2016

Gaspare Galati ,
Paola Carta ,
Mauro Leonardi ,
Francesco Madia ,
Rossella Stallone  and
Stefania Franco
Gaspare Galati*
Affiliation:
Electronic Engineering Department, University of Rome “Tor Vergata”, Via del Politecnico 1, 00133 Rome, Italy
Paola Carta
Affiliation:
Electronic Engineering Department, University of Rome “Tor Vergata”, Via del Politecnico 1, 00133 Rome, Italy
Mauro Leonardi
Affiliation:
Electronic Engineering Department, University of Rome “Tor Vergata”, Via del Politecnico 1, 00133 Rome, Italy
Francesco Madia
Affiliation:
SEASTEMA/Fincantieri S.p.A., Via Giacomo Peroni, 130 – building 4, 00131 Rome, Italy
Rossella Stallone
Affiliation:
SEASTEMA/Fincantieri S.p.A., Via Giacomo Peroni, 130 – building 4, 00131 Rome, Italy
Stefania Franco
Affiliation:
SEASTEMA/Fincantieri S.p.A., Via Giacomo Peroni, 130 – building 4, 00131 Rome, Italy
*
Corresponding author:G. Galati Email: gaspare.galati@uniroma2.it
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Abstract

Multifunction radars based on active phased arrays are well known and widely studied systems. The concepts of bistatic architecture, conformal array and digital beam forming (DBF) are combined in this paper to define a novel multifunction radar for point defense. The conical shape of the antenna overcomes the significant limitations in the azimuth coverage of 360° of fixed-faces phased arrays due to the beam scanning up to 45°. The usage of separate transmit/receive arrays and the DBF technique adds the operational flexibility and the possibility of multiple simultaneous functions, with an optimal time-energy resources exploitation. After a short description of its technological demonstrator, some significant design trade-off, and operating aspects of the proposed architecture, called d-Radar, are described, showing the main differences with respect to the classical, four faces, and phased-array multifunction radar architecture. It is described how the operating modes can be made more and more similar to a “staring” or “ubiquitous” radar permitting an instantaneous detection and location of short-range, low-elevation targets for sea and ground operations. Finally, some remarks about the resources management and scheduling are shown with the results from a case of study.

Keywords

Digital beam formingConformal arrayMultifunction radarActive phased array
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Issue 3 , April 2017 , pp. 551 - 565
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2016 

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