Search results for: Filippo Scotti

Items from 1 to 20 out of 44 results

chapter

0.5 – 40 GHz range extension of a compact Electronic Support Measures scanning receiver based on photonics

Daniel Onori, Filippo Scotti, Francesco Laghezza, Marco Bartocci, more

2017 18th International Radar Symposium (IRS) > 1 - 10

2017 18th International Radar Symposium (IRS)

A simple and effective technique is introduced to upgrade the operative bandwidth of a compact photonics-based ESM scanning receiver. The original 0.5 – 10.5 GHz covered frequency range is experimentally demonstrated to broaden to 28.5 GHz, limited by laboratory constraints, and a simulative analysis ensures exceeding the 0.5 – 40 GHz goal by simply employing commercially available electro-optical...

article

Photonics-Based Radar for Sub-mm Displacement Sensing

Sergio Pinna, Suzanne Melo, Francesco Laghezza, Filippo Scotti, more

IEEE Journal of Selected Topics in Quantum Electronics > 2017 > 23 > 2 > 1 - 8

Photonics-based multiband radars have been demonstrated where photonics is exploited for multiple radio frequency (RF) signal generation and detection by means of a single optical local oscillator that replaces the conventional cascades of electrical local oscillators. The ultrawide band and high stability of photonics and the use of a single local oscillator assure very low system phase noise and...

article

Field trial of a photonics-based dual-band fully coherent radar system in a maritime scenario

Filippo Scotti, Francesco Laghezza, Daniel Onori, Antonella Bogoni

IET Radar, Sonar & Navigation > 2017 > 11 > 3 > 420 - 425

This study reports the experimental validation of the first photonics-based dual-band radar system in a real maritime scenario, detailing the operation principles as well as the implementation of the demonstrator. The prototype, exploiting photonics for both the generation and the detection of the radar signals, is able to simultaneously handle two radar waveforms in the S-band and the X-band, ensuring...

chapter

Sub-mm displacement measure via multi-band phase estimation in a photonics-based radar system

Sergio Pinna, Suzanne Melo, Emma Lazzeri, Antonella Bogoni, more

2016 European Radar Conference (EuRAD) > 310 - 313

2016 European Radar Conference (EuRAD)

The phase coherence among multi-band signals generated by a photonics-based radar is exploited to perform differential phase estimation for enhanced displacement measures. The system employs stepped frequency continuous waves simultaneously in the S- and X-band, measuring the differential phase over a synthetic band up to 7.4GHz. The experimental results demonstrate a precision < 200µm without...

article

Coherent Interferometric Dual-Frequency Laser Radar for Precise Range/Doppler Measurement

Daniel Onori, Filippo Scotti, Mirco Scaffardi, Antonella Bogoni, more

Journal of Lightwave Technology > 2016 > 34 > 20 > 4828 - 4834

A novel coherent interferometric dual frequency laser radar that merges the concept of laser and radio detection and ranging (ladar and radar, respectively), for both range and velocity measurement, is presented and experimentally demonstrated. The innovative architecture combines the broadband tunability of dual-wavelength optical sources, enabling a dynamic trade-off between precision and robustness...

chapter

Space based software defined coherent lidar architecture: From system demonstration to system integration

Francesco Laghezza, Sergio Pinna, Daniel Onori, Filippo Scotti, more

2016 IEEE Avionics and Vehicle Fiber-Optics and Photonics Conference (AVFOP) > 189 - 190

2016 IEEE Avionics and Vehicle Fiber-Optics and Photonics Conference (AVFOP)

Recently, thanks to the innovation in optical and electro-optical components, space based passive radiometers and microwave sensors can be efficiently supported by complementary light detection and ranging (Lidar) systems. One of the most important applications for astronautics Lidars, is the measure of target's distance and its relative properties as, topography, surface's roughness and reflectivity,...

chapter

Photonics-based transceivers for fiber-wireless networks

Paolo Ghelfi, Francesco Laghezza, Filippo Scotti, Giovanni Serafino, more

2016 18th International Conference on Transparent Optical Networks (ICTON) > 1 - 4

2016 18th International Conference on Transparent Optical Networks (ICTON)

The increase of data traffic in wireless networks is requiring the bandwidth of photonics for the antenna data relay. While the distribution of RF signals through Radio-over-Fiber has become a well-accepted and established technology thanks to the low loss of fibers in signal transportation, photonics still has lot to offer to the radio world. RF signal generation, detection, and conditioning (e.g...

chapter

A direct-conversion RF scanning receiver based on photonics

Daniel Onori, Francesco Laghezza, Filippo Scotti, Marco Bartocci, more

2016 IEEE MTT-S International Microwave Symposium (IMS) > 1 - 4

2016 IEEE/MTT-S International Microwave Symposium - MTT 2016

A photonics-based direct-conversion RF receiver has been realized and characterized. The innovative architecture uses coherent optical techniques to perform a fast and wideband scan of the RF spectrum avoiding bulky multiple crystal oscillators. The direct-conversion approach based on photonics enables filtering the input signal spectrum by means of a simple electrical low pass filter, and provide...

chapter

ISAR imaging of non-cooperative targets via dual band photonics-based radar system

Francesco Laghezza, Filippo Scotti, Daniel Onori, Antonella Bogoni

2016 17th International Radar Symposium (IRS) > 1 - 4

2016 17th International Radar Symposium (IRS)

We present results of ISAR imaging derived from a field trial detecting different non-cooperative targets with a photonics-based dual band radar operating in S and X band. Images of the targets have been extracted from collected data demonstrating the capability of the system to operate as an imaging radar. The innovative features of the photonic system as the frequency flexibility and the coherent...

chapter

Coherent laser radar with dual-frequency Doppler estimation and interferometric range detection

Daniel Onori, Filippo Scotti, Francesco Laghezza, Mirco Scaffardi, more

2016 IEEE Radar Conference (RadarConf) > 1 - 5

2016 IEEE Radar Conference (RadarConf16)

The concept of a coherent interferometric dual frequency laser radar, that measures both the target range and velocity, is presented and experimentally demonstrated. The innovative architecture combines the dual frequency lidar concept, allowing a precise and robust Doppler estimation, with the interferometric phase measure technique for the detection of the range with high accuracy. Moreover, the...

chapter

Dual-use system combining simultaneous active radar & communication, based on a single photonics-assisted transceiver

Suzanne Melo, Sergio Pinna, Antonella Bogoni, I. F. da Costa, more

2016 17th International Radar Symposium (IRS) > 1 - 4

2016 17th International Radar Symposium (IRS)

This paper report on the development and field trial of a dual-band and dual-use system based on a single photonics-based transceiver and a single radiating element, able to simultaneously carry out radar and communication functionalities. The coexistence of the two operations does not introduce any penalty on the system performance. The innovative sharing of both transceiver and antenna element allows...

chapter

Tracking of a naval target with a dual-band photonic-based coherent radar system

Filippo Scotti, Antonella Bogoni, Francesco Laghezza, Daniel Onori

2016 IEEE Radar Conference (RadarConf) > 1 - 4

2016 IEEE Radar Conference (RadarConf16)

Results from a field trial campaign of a fully coherent dual band radar system based on a single photonic-assisted transceiver are presented and discussed. The proposed architecture allows independent and simultaneous generation of radar signals in the S- and X-band, and their detection exploiting a single low sample rate analog to digital converter. Moreover the sharing of a single transceiver for...

article

Photonics for Radars Operating on Multiple Coherent Bands

Paolo Ghelfi, Francesco Laghezza, Filippo Scotti, Daniel Onori, more

Journal of Lightwave Technology > 2016 > 34 > 2 > 500 - 507

The introduction of photonics in microwave systems is setting new paradigms in radar architectures, providing new features potentially improving the surveillance effectiveness. In particular, photonics is enabling a new generation of the multiband radars able to manage multiple coherent radar signals at different frequencies simultaneously, with high and frequency-independent quality, enabling multispectral...

chapter

The new generation of remote sensors based on the integration of optics and electronics

Antonella Bogoni, Paolo Ghelfi, Francesco Laghezza, Filippo Scotti, more

2015 International Conference on Microwave and Photonics (ICMAP) > 1 - 2

2015 International Conference on Microwave and Photonics (ICMAP)

The cross-fertilization between photonic and microwave systems is setting new paradigms in radio sensor technologies, providing improved performance and new applications, and allowing for an integration of radio and optics sensors with strong benefits in monitoring and safety applications. Radio sensors as radars are evolving toward multiband multifunctional systems that are putting electronic technologies...

article

Multi-Frequency Lidar/Radar Integrated System for Robust and Flexible Doppler Measurements

Filippo Scotti, Daniel Onori, Mirco Scaffardi, Emma Lazzeri, more

IEEE Photonics Technology Letters > 2015 > 27 > 21 > 2268 - 2271

A new architecture for an integrated fully coherent radar–lidar system based on a single mode-locked laser is proposed and demonstrated. The lidar exploits a multi-frequency optical signal with tunable tones separation allowing a dynamic tradeoff among robustness and sensitivity of measurements. The radar that is based on photonics technologies employs the mode-locked laser for generating the radio...

article

Fully Coherent S- and X-Band Photonics-Aided Radar System Demonstration

Filippo Scotti, Daniel Onori, Francesco Laghezza

IEEE Microwave and Wireless Components Letters > 2015 > 25 > 11 > 757 - 759

A fully coherent dual band radar system based on a single photonic-assisted transceiver is presented. Photonic technologies have been used for simultaneous generation and detection of radar signals in the S- and X-band. The sharing of a single transceiver for both the frequency bands allows for a perfect coherence among the generated waveforms. The system has been tested in an operative aerial scenario,...

chapter

Photonics-based dual-band radar demonstration for maritime traffic detection

Filippo Scotti, Francesco Laghezza, Antonella Bogoni, Daniel Onori

2015 International Topical Meeting on Microwave Photonics (MWP) > 1 - 4

2015 International Topical Meeting on Microwave Photonics (MWP)

A fully coherent dual band radar system based on a single photonic-assisted transceiver is presented and detailed. The proposed architecture allows simultaneous generation and detection of radar signals in the S- and X-band. The sharing of a single transceiver for both the frequency bands provides a perfect coherence among the generated waveforms, allowing improved data fusion techniques. In field...

article

Field evaluation of a photonics-based radar system in a maritime environment compared to a reference commercial sensor

Francesco Laghezza, Filippo Scotti, Giovanni Serafino, Luca Banchi, more

IET Radar, Sonar & Navigation > 2015 > 9 > 8 > 1040 - 1046

This study shows the experimental validation of the first photonics-based radar system demonstrator in a real maritime environment. The radar system demonstrator exploits photonic technologies for both the generation and the detection of the RF radar signals, and it has been previously proved allowing increased performance and unprecedented potential flexibility. Here, the photonics-based radar is...

article

Photonics in Radar Systems: RF Integration for State-of-the-Art Functionality

Paolo Ghelfi, Francesco Laghezza, Filippo Scotti, Giovanni Serafino, more

IEEE Microwave Magazine > 2015 > 16 > 8 > 74 - 83

The cross-fertilization between photonics and microwave systems is setting new paradigms in radio technologies, promising improved performance and new applications, with strong benefits for communication systems broadly as well as for public safety specifically. In particular, the use of photonics in radar systems is leading to a new generation of multifunctional systems that can manage multiple simultaneous...

chapter

Photonics in coherent multiband radar systems

Francesco Laghezza, Filippo Scotti, Giovanni Serafino, Sergio Pinna, more

2015 14th International Conference on Optical Communications and Networks (ICOCN) > 1 - 3

2015 14th International Conference on Optical Communications and Networks (ICOCN)

The cross-fertilization between photonics and microwave systems is setting new paradigms in radar systems leading towards a new generation of multifunctional systems, able to manage multiple simultaneous coherent radio signals at different frequencies, enabling multispectral imaging for advanced surveillance systems. This paper present the first multiband photonics-based radar transceiver, reporting...

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PHOTONICS (20)
RADIO FREQUENCY (16)
LASER RADAR (15)
MICROWAVE PHOTONICS (14)
OPTICAL FILTERS (11)
OPTICAL PULSES (8)
COHERENT RADAR (7)
TRANSCEIVERS (7)
OPTICAL SENSORS (6)
OPTICAL TRANSMITTERS (6)
PHOTONIC TRANSCEIVER (6)
RF SIGNALS (6)
BANDWIDTH (5)
DUAL-BAND RADAR (5)
RADAR (5)
RADAR DETECTION (5)
FREQUENCY MODULATION (4)
OPTICAL FIBERS (4)
PHASE MODULATION (4)
CHIRP (3)
DOPPLER EFFECT (3)
DOPPLER RADAR (3)
DUAL BAND (3)
FREQUENCY MEASUREMENT (3)
OPTICAL MODULATION (3)
RADAR IMAGING (3)
RADAR SYSTEM (3)
VELOCITY MEASUREMENT (3)
COHERENT DETECTION (2)
DIFFERENTIAL PHASE ESTIMATION (2)
DISPLACEMENT MEASUREMENT (2)
DUAL-BAND (2)
JITTER (2)
MARINE RADAR (2)
MONITORING (2)
NOISE (2)
OFDM (2)
OPTICAL ATTENUATORS (2)
OPTICAL BUFFERING (2)
OPTICAL INTERFEROMETRY (2)
OPTICAL MIXING (2)
OPTICAL RECEIVERS (2)
PHASE MEASUREMENT (2)
RADAR ANTENNAS (2)
RADAR CROSS-SECTIONS (2)
RADAR SIGNAL PROCESSING (2)
RECEIVERS (2)
WIRELESS COMMUNICATION (2)
AD-HOC LABORATORY TESTS (1)
ADAPTIVE OPTICS (1)
APPLICATION-TRANSPARENT PHOTONIC TRANSCEIVER (1)
BARKER CODE (1)
COHERENT LIDAR (1)
DIRECT CONVERSION RECEIVER (1)
DOPPLER SHIFT (1)
DOWN-CONVERTER (1)
FIELD EVALUATION (1)
FIELD TRIAL (1)
FREQUENCY BANDS (1)
FREQUENCY-AGILE PHOTONIC TRANSCEIVER DEVELOPMENT (1)
GLOBAL POSITIONING SYSTEM (1)
IMAGING (1)
INJECTION LOCKING (1)
INTEGRATED OPTICS (1)
INVERSE SYNTHETIC APERTURE RADAR (1)
ITALY (1)
LASER MODE LOCKING (1)
LASER MODE-LOCKING (1)
LASER MODES (1)
LASER STABILITY (1)
LIDAR SYSTEM (1)
LIVORNO PORT (1)
MARITIME ENVIRONMENT (1)
MEASUREMENT BY LASER BEAM (1)
MODE-LOCKED LASER (MLL) (1)
MODELOCKING LASER (1)
MULTIBAND RADAR (1)
NONCOOPERATIVE TARGETS (1)
OPTICAL BEAMFORMING (1)
OPTICAL CROSSTALK (1)
OPTICAL DISTORTION (1)
OPTICAL FIBER NETWORKS (1)
OPTICAL FIBER SENSORS (1)
OPTICAL FREQUENCY COMB (1)
OPTICAL PACKET SWITCHING (1)
OPTICAL RADAR (1)
OPTICAL SATURATION (1)
OPTICAL SIGNAL DETECTION (1)
OPTICAL SIGNAL PROCESSING (1)
OPTICAL SWITCHES (1)
OPTICAL SWITCHING MATRIX (1)
PHOTONIC ADC (1)
PHOTONICS-BASED DUAL-BAND FULLY COHERENT RADAR SYSTEM (1)
PHOTONICS-BASED RADAR SYSTEM (1)
POST-DETECTION CAPABILITY (1)
POWER BUDGET ANALYSIS (1)
RADAR CROSS SECTION (1)
RADAR EQUIPMENT (1)
RADAR MEASUREMENTS (1)
RADAR SIGNAL DETECTION (1)
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INFONA - science communication portal

Search results for: Filippo Scotti

0.5 – 40 GHz range extension of a compact Electronic Support Measures scanning receiver based on photonics

Photonics-Based Radar for Sub-mm Displacement Sensing

Field trial of a photonics-based dual-band fully coherent radar system in a maritime scenario

Sub-mm displacement measure via multi-band phase estimation in a photonics-based radar system

Coherent Interferometric Dual-Frequency Laser Radar for Precise Range/Doppler Measurement

Space based software defined coherent lidar architecture: From system demonstration to system integration

Photonics-based transceivers for fiber-wireless networks

A direct-conversion RF scanning receiver based on photonics

ISAR imaging of non-cooperative targets via dual band photonics-based radar system

Coherent laser radar with dual-frequency Doppler estimation and interferometric range detection

Dual-use system combining simultaneous active radar & communication, based on a single photonics-assisted transceiver

Tracking of a naval target with a dual-band photonic-based coherent radar system

Photonics for Radars Operating on Multiple Coherent Bands

The new generation of remote sensors based on the integration of optics and electronics

Multi-Frequency Lidar/Radar Integrated System for Robust and Flexible Doppler Measurements

Fully Coherent S- and X-Band Photonics-Aided Radar System Demonstration

Photonics-based dual-band radar demonstration for maritime traffic detection

Field evaluation of a photonics-based radar system in a maritime environment compared to a reference commercial sensor

Photonics in Radar Systems: RF Integration for State-of-the-Art Functionality

Photonics in coherent multiband radar systems

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