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View article: Inverse Source Method for Constrained Phased Array Synthesis through Null-Space Exploitation
Inverse Source Method for Constrained Phased Array Synthesis through Null-Space Exploitation Open
A versatile approach for the synthesis of phased array (PA) antennas able to fit user-defined power pattern masks, while fulfilling additional geometrical and/or electrical constraints on the geometry of the array aperture and/or on the ar…
View article: Unconventional Array Design in the Autocorrelation Domain -- Isophoric 1D Thinning
Unconventional Array Design in the Autocorrelation Domain -- Isophoric 1D Thinning Open
The synthesis of thinned isophoric arrays (TIAs) radiating mask-constrained patterns is addressed. By leveraging on the recently-introduced formulation of the design of antenna arrays in the autocorrelation-domain (AD), the TIA synthesis i…
View article: Contrast source inversion of sparse targets through multi-resolution Bayesian compressive sensing
Contrast source inversion of sparse targets through multi-resolution Bayesian compressive sensing Open
The retrieval of non-Born scatterers is addressed within the contrast source inversion ( CSI ) framework by means of a novel multi-step inverse scattering method that jointly exploits prior information on the class of targets under investi…
View article: Microwave NDT/NDE Through Differential Bayesian Compressive Sensing
Microwave NDT/NDE Through Differential Bayesian Compressive Sensing Open
This article deals with the nondestructive testing and evaluation (NDT/NDE) of dielectric structures through a sparseness-promoting probabilistic microwave imaging (MI) method. Prior information on both the unperturbed scenario and the cla…
View article: Spline-Shaped Microstrip Edge-Fed Antenna for 77 GHz Automotive Radar Systems
Spline-Shaped Microstrip Edge-Fed Antenna for 77 GHz Automotive Radar Systems Open
An innovative millimeter-wave (mm-wave) microstrip edge-fed antenna (EFA) for 77 GHz automotive radars is proposed. The radiator is designed under the main requirements of having (i) an horizontally-polarized pattern and (ii) a single-laye…
View article: Breaking the Curse of Dimensionality in Electromagnetics Design Through Optimization Empowered by Machine Learning
Breaking the Curse of Dimensionality in Electromagnetics Design Through Optimization Empowered by Machine Learning Open
This chapter focuses on the System-by-Design ( SbD ) paradigm for the efficient optimization-driven solution of complex electromagnetic ( EM ) design problems. According to the SbD , the computational complexity is effectively tackled thro…
View article: Design of Clustered Phased Arrays by Means of an Innovative Power Pattern Matching-Driven Method -- The Linear Array Case
Design of Clustered Phased Arrays by Means of an Innovative Power Pattern Matching-Driven Method -- The Linear Array Case Open
The design of sub-arrayed phased arrays (PAs) with sub-array-only amplitude and phase controls that afford arbitrary-shaped power patterns matching reference ones is addressed. Such a synthesis problem is formulated in the power pattern do…
View article: From Multiresolution to the System-by-Design based GPR Imaging
From Multiresolution to the System-by-Design based GPR Imaging Open
<p>Ground Penetrating Radar (<em>GPR</em>) is a technology of high interest due to its many applications [1], requiring to process the collected data to retrieve the shape and/or electromagnetic (<em>EM</em>) …
View article: Learned Global Optimization for Inverse Scattering Problems: Matching Global Search With Computational Efficiency
Learned Global Optimization for Inverse Scattering Problems: Matching Global Search With Computational Efficiency Open
The computationally-efficient solution of fully non-linear microwave inverse scattering problems (ISPs) is addressed. An innovative System-by-Design (SbD) based method is proposed to enable, for the first time to the best of the authors kn…
View article: SBD SYNTHESIS OF DUAL-BAND PERTURBED MINKOWSKI MONOPOLE FRACTAL ANTENNAS
SBD SYNTHESIS OF DUAL-BAND PERTURBED MINKOWSKI MONOPOLE FRACTAL ANTENNAS Open
An innovative methodology for the design of dual-band microstrip monopole antennas is presented in this work.It leverages on the unconventional modeling of the radiator shape based on the perturbed Minkowski fractal in order to fit arbitra…
View article: Codesign of Switching Sequence and Diode Parameters for Multiple Pattern Optimization in Time-Modulated Arrays
Codesign of Switching Sequence and Diode Parameters for Multiple Pattern Optimization in Time-Modulated Arrays Open
An innovative method for the design of time-modulated arrays (TMAs) is presented in this letter. The time-domain switching sequence and the parameters of the radio-frequency diodes implementing the time modulation are simultaneously synthe…
View article: Optimal Excitation Matching Strategy for Sub-Arrayed Phased Linear Arrays Generating Arbitrary-Shaped Beams
Optimal Excitation Matching Strategy for Sub-Arrayed Phased Linear Arrays Generating Arbitrary-Shaped Beams Open
The design of phased arrays able to generate arbitrary-shaped beams through a sub-arrayed architecture is addressed here. The synthesis problem is cast in the excitation matching framework, so as to yield clustered phased arrays providing …
View article: Autocorrelation-Driven Synthesis of Antenna Arrays—The Case of <i>DS</i>-Based Planar Isophoric Thinned Arrays
Autocorrelation-Driven Synthesis of Antenna Arrays—The Case of <i>DS</i>-Based Planar Isophoric Thinned Arrays Open
A new methodology for the design of isophoric thinned arrays with a priori controlled pattern features is introduced. A fully analytical and general (i.e., valid for any lattice and set of weights) relationship between the autocorrelation …
View article: Full-Vectorial 3D Microwave Imaging of Sparse Scatterers through a Multi-Task Bayesian Compressive Sensing Approach
Full-Vectorial 3D Microwave Imaging of Sparse Scatterers through a Multi-Task Bayesian Compressive Sensing Approach Open
In this paper, the full-vectorial three-dimensional (3D) microwave imaging (MI) of sparse scatterers is dealt with. Towards this end, the inverse scattering (IS) problem is formulated within the contrast source inversion (CSI) framework an…
View article: Human chest imaging by real-time processing of electrical impedance data tomography
Human chest imaging by real-time processing of electrical impedance data tomography Open
Real-time human chest imaging exploiting electrical impedance tomography (EIT) data is addressed in this work.Robust estimations of the lungs conductivity, directly related to their air/liquid content, are obtained by formulating the arisi…
View article: Computational methods for wireless structural health monitoring of cultural heritages
Computational methods for wireless structural health monitoring of cultural heritages Open
The structural health monitoring of cultural heritages is addressed in this paper. The arising inverse problem is solved through the Learning-by-Examples (LBE) paradigm, exploiting data collected by a Wireless Sensor Network (WSN). More in…
View article: Inverse Scattering for Monochromatic Phaseless Measurements
Inverse Scattering for Monochromatic Phaseless Measurements Open
An inverse method and measurement setup for profile and constitutive parameters reconstruction from monochromatic phaseless information is presented. The method is based on the minimization of a cost function that relates the measured fiel…
View article: A computational method for the inversion of wide-band GPR measurements
A computational method for the inversion of wide-band GPR measurements Open
An innovative method for the inversion of ground penetrating radar (GPR) measurements is presented. The proposed inverse scattering (IS) approach is based on the exploitation of wide-band data according to a multi-frequency (MF) strategy, …
View article: Performance Analysis of Time-Modulated Arrays for the Angle Diversity Reception of Digital Linear Modulated Signals
Performance Analysis of Time-Modulated Arrays for the Angle Diversity Reception of Digital Linear Modulated Signals Open
This version of the article has been accepted for publication, after peer review. The Version of Record is available online at: https://doi.org/10.1109/JSTSP.2016.2609852.
View article: Novel phaseless measurement inversion strategy for low-cost microwave imaging setup
Novel phaseless measurement inversion strategy for low-cost microwave imaging setup Open
A novel methodology for the reconstruction of the profile and constitutive parameters of unknown Objects-Under-Test (OUTs) using amplitude-only measurements is presented. A cost function quantifying the mismatch between the amplitude of th…