Bistatic SAR systems are an emerging research field, in which context the Universitat Politecnica de Catalunya is developing a ground based bistatic system using ESA’s ENVISAT and ERS-2 as transmitters. The spatial resolution of this configuration is similar to that of their monostatic counterpart, although foreshortening effects have a lesser impact. The formulation of the interferometric phas...

It has been demonstrated with the use of 31P NMR pulsed spectroscopy that the reaction of mesitoyl chloride (MsCOCl) both with terminal and internucleotide phosphate groups pA, d(MeOTr)TpT and dpTpT (Ac) proceeds in a quantitative fashion within less than 2 min at 0 degrees C with the respective mixed anhydrides being thereby formed. The anhydrides of phosphomonoesters are resistant, unlike tho...

A great number of Software Product Lines are not constructed from scratch, they are rather re-engineered from several similar product variants that have been in use. Existing methods for SPL feature model development from product variants may not be applicable when these products are developed independently and hence differ in their element names, methods code and structures. When different dev...

Software product lines often arise from a set of variants of a common code basis that have been individually adapted to a particular requirement variability. This ad-hoc and unplanned approach causes serious maintenance problems. Migrating such variants into an organized software product line promises better maintainability. In this talk, I shall outline our 3-year research program aiming at co...

In this paper we show how to construct new convolutional codes from old ones by applying the well-known techniques: puncturing, extending, expanding, direct sum, the (u|u + v) construction and the product code construction. By applying these methods, several new families of convolutional codes can be constructed. As an example of code expansion, families of convolutional codes derived from clas...

The product code proposed in this chapter is constructed by using time-invariant convolutional code. Its component codes’ trellis structure does not vary in time as in product codes constructed with Hamming, BCH, and Reed Solomon block codes. Moreover, the number of states in the trellis structure of a block code may grow exponentially with the difference of codeword and data block lengths, whe...

T. Kaisto, M. Navarro, L. J. del Valle, EUETIB-CEIB, Chemical Engineering Department, UPC. BARCELONATECH, C/Comte d’Urgell 187, 08036 Barcelona, Spain Faculty of Technology, Lahti University of Applied Sciences, Niemenkatu 73, 15101 Lahti, Finland Center for Research in Nano-Engineering (CrNE), and ETSEIB, Chemical Engineering Department, UPC. BARCELONATECH, Av Diagonal 647, 08028 Barcelona, Spain

The UPC system works by extracting monomodal signal segments (face tracks, speech segments) that overlap with the person names overlaid in the video signal. These segments are assigned directly with the name of the person and used as a reference to compare against the non-overlapping (unassigned) signal segments. This process is performed independently both on the speech and video signals. A si...

Nazim Agoulmine, University d’Evry, France Nelly Bencomo, Lancaster University, UK Monique Calisti, Whitestein Technologies, Switzerland Betty Cheng, Michigan State University, USA Simon Dobson, University College Dublin, Ireland Joel Fleck, HP Labs, USA Robert France, Colorado State University, USA Jeff Gray, University of Alabama at Birmingham, USA Brendan Jennings, TSSG, Waterford Institute ...