3 research outputs found
Estudi bibliomètric primer trimestre 2014. EETAC
El present document recull les publicacions indexades a la base de dades Scopus durant el perĂode comprès entre el mesos de gener a abril de l’any 2014, escrits per autors pertanyents a l’EETAC. Es presenten les dades recollides segons la font on s’ha publicat, els autors que han publicat, i el tipus de document publicat. S’hi inclou un annex amb la llista de totes les referències bibliogrĂ fiques publicades.El present document recull les publicacions indexades a la base de dades Scopus durant el perĂode comprès entre el mesos de gener a abril de l’any 2014, escrits per autors pertanyents a l’EETAC. Es presenten les dades recollides segons la font on s’ha publicat, els autors que han publicat, i el tipus de document publicat. S’hi inclou un annex amb la llista de totes les referències bibliogrĂ fiques publicades.Postprint (published version
Estudi bibliomètric any 2014. Campus del Baix Llobregat: EETAC i ESAB
En el present informe s’analitza la producciĂł cientĂfica de les dues escoles del Campus del Baix Llobregat, l’Escola d’Enginyeria de TelecomunicaciĂł i Aerospacial de Castelldefels (EETAC) i l’Escola Superior d’Agricultura de Barcelona (ESAB) durant el 2014.Postprint (author’s final draft
Efficient Evaluation of Fourier-Based SAR Focusing Kernels
This letter addresses the efficient evaluation of Fourier-based kernels for synthetic aperture radar (SAR) image
formation. The goal is to evaluate the quality of the focused impulse response function and the residual phase errors of the kernel without having to implement the processor itself nor perform a costly point-target simulation followed by the processing. The proposed methodology is convenient for situations where the assumption of a hyperbolic range history does not hold anymore, and
hence, a compact analytic expression of the point target spectrum is not available. Examples where the hyperbolic range history does not apply include very high resolution spaceborne SAR imaging or bistatic SAR imaging. The approach first numerically computes the 2-D spectrum of a point target and then uses the transfer function of the focusing kernel to match it. The spectral support is then computed to adapt the spectrum to the output imaging geometry, so that the impulse response function (IRF) is finally obtained. The proposed approach is valid under the assumption of a large time-bandwidth product, as is usually the case for current air- and spaceborne SAR sensors. The methodology is validated by comparing the matched IRFs with the ones obtained using point-target simulations