Carles Vilella

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In the modern era of communication Orthogonal Frequency Division Multiplexing (OFDM) technique is the most widely used in wireless technology. With some advantage come few issues such as Peak to Average Power Ratio (PAPR) that leads High Power Amplifiers (HPA) to be worked in nonlinear region which causes inter-modulation distortion and out of band(More)
Object detection is an open research problem in computer vision, and most important recent advances make use of parts-based models. In particular, Conditional Random Fields (CRF) have been successfully embedded into the partsbased model framework due to its effectiveness for learning and inference (usually based on a tree structure). However, CRFbased(More)
This paper presents an overview of the research activities undertaken by La Salle and the Ebro Observatory in the field of remote sensing. On 2003 we started a research project with two main objectives: implement a long-haul oblique ionospheric sounder and transmit the data from remote sensors located at the Spanish Antarctic station Juan Carlos I to Spain.(More)
Software Defined Radio (SDR) is happening to be the key to find a common global standard that could solve the problem of current multi-standard wireless communications. The attractions of a SDR are not only flexibility and ease of adoption, but also that almost any aspect of a program that implements radio functions can easily be changed. In this paper we(More)
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