barra table aPromoted by:

loghoIEEE

loghoAESS

ims small

barra table aFlorence

Famous for its history, Florence is considered the birthplace of the Renaissance. Appreciated by millions of tourists from all over the world for its culture, architecture and monuments, it was declared a World Heritage Site by UNESCO in 1982.

rooftops-in-florence-photo 4524440-fit468x296

 


congress card1

Organizers are pleased to offer their attendees a special customized Congress Card, valid for the whole stay in Florence during the congress or event.

Click here for more information.

red fcb card

 

 

barra table aCountdown

IEEE International Workshop Metrology for AeroSpace Time's Up

barra table aFollow us on

facebook-icon

twitter-icongoogle-plus-icon

 SPECIAL SESSION 

 URSI in Italy

 

CHAIR:

  • Roberto Sorrentino
    Engineering Department, University of Perugia, Italy
    email:  This email address is being protected from spambots. You need JavaScript enabled to view it.

 

DESCRIPTION

The International Union of Radio Science (URSI) is a non-governmental and non-profit organization under the International Council for Science, responsible for stimulating and co-ordinating, on an international basis, studies, research, applications, scientific exchange, and communication in the fields of radio science. Radio science encompasses the knowledge and study of all aspects of electromagnetic fields and waves. During the “Special Session on URSI in Italy” three tutorials concerning some of the most prominent research activities developed within the Italian URSI community in the fields of metrology and aerospace will be presented by leading experts in electromagnetic compatibility (Commission E), wave propagation and remote sensing (Commission F) and radio astronomy (Commission J). The session is open to additional contributions in the fields of radio science. Proposals from young scientists are particularly welcome.

 

PREVIEW OF TITLES AND ABSTRACTS

  • The clock-like nature of the radio pulsars (Commission J)

Andrea Possenti, INAF, Osservatorio Astronomico di Cagliari

Radio pulsars are highly magnetized and fastly rotating neutron stars, the radio beams of which can be detected as radio pulses when they sweep the line of sight to the observer, at the pace of the neutron star spin. Since some of the underlying neutron stars are ultra stable rotators, the pulsed emission from the associated radio pulsars behaves as the ticks of a natural clock. This property can be exploited for performing a variety of experiments of fundamental physics, as well as for establishing a terrestrial time scale entirely based on cosmic sources. The contribution will review methodologies and perspectives in this field.

 

  • Use of millimeter and optical wavelengths for next generation aerospace communication systems (Commission F)

Prof. Carlo Capsoni, Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano 

High Throughput satellite communication Systems (HTS) providing multimedia service as well as space science missions can greatly benefit from the use of very high frequency carriers (in the millimeter or even infrared bands), in order to take advantage of the larger bandwidths made available. Aeronautical applications aimed at distributing service information among air traffic control centers and aircraft for increasing flight security as well as providing to passengers global access to Internet during the travel also share the interest in these bands. The drawback of using very short wavelengths is the definite impact of the impairments caused by the troposphere. This contribution will review advantages and disadvantages of these future systems and the strategies required to move towards the operative phase.

 

  • Proficiency testing in EMC (Commission E)

Carlo Carobbi, Dipartimento di Ingegneria dell’Informazione, Università degli Studi di Firenze

Achieving electromagnetic compatibility (EMC) for modern electrical and electronic equipment is not an easy task. This is mainly due the increasing need for efficient power conversion (high frequency switching power supply), connectivity (ubiquitous radiofrequency communication modules) and fast processing of relatively large amount of data (high speed digital circuits) within the same equipment. EMC is a an even more critical issue in military, avionic and space applications where electrical and electronic equipment is subject to high power and broadband interference, must operate in close proximity and share the same ground and power supply. Further, in these contexts, consideration of the safety and economic consequences of a possible failure due to electromagnetic interference during a military or space mission or a regular flight is mandatory. Due to these reasons, not only EMC compliant design but also EMC testing require a high degree of specialization and competence, especially in high-frequency measurement techniques.

At the same time EMC testing is going through a process of continuous improvement. Such process involves aspects such as traceability of measurement results, calculation of measurement uncertainty and evaluation of measurement repeatability. Competence of EMC testing laboratories is formally recognized through assessment by a third party against the requirements of the standard ISO IEC 17025, which mandates the implementation of a systematic approach to the above mentioned aspects. Assurance of the quality of test results in particular requires some form of verification which has to be experimental, i.e. complementary to documental, and representative of the testing process carried out by the EMC laboratory. This is achieved through participation in proficiency tests, as clearly pointed out in terms of a specific requirement in clause 5.9.1, item b) of ISO IEC 17025. Proficiency tests are interlaboratory comparisons specifically designed to evaluate participants’ performance against pre-established criteria.

The purpose of this tutorial is to introduce the audience to proficiency testing in EMC. The subject is dealt with from the viewpoint of the coordinator of several proficiency tests in Italy. The presentation will focus on the design, preparation, conduct, and result of a proficiency test of radiated electromagnetic field emission measurements in the frequency range between 30 MHz and 6 GHz. All aspects of the activity will be touched, from the design, realization and calibration of the travelling sample (a compact reference electromagnetic field radiator) to the statistical processing of the measurement results provided by the participants and the quantitative evaluation of their proficiency. The subject is general, in that is related to EMC radiated emission testing according to all standards, including those applicable to military and aerospace equipment.