27 resultados para radio FM
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Pós-graduação em História - FCLAS
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Cognitive radio is a growing zone in wireless communication which offers an opening in complete utilization of incompetently used frequency spectrum: deprived of crafting interference for the primary (authorized) user, the secondary user is indorsed to use the frequency band. Though, scheming a model with the least interference produced by the secondary user for primary user is a perplexing job. In this study we proposed a transmission model based on error correcting codes dealing with a countable number of pairs of primary and secondary users. However, we obtain an effective utilization of spectrum by the transmission of the pairs of primary and secondary users' data through the linear codes with different given lengths. Due to the techniques of error correcting codes we developed a number of schemes regarding an appropriate bandwidth distribution in cognitive radio.
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This project aims to analyze and understand the extension project called Observatório do Esporte, and especially, the radio program Observatório do Esporte, aired weekly on Rádio Unesp FM that reached the 100th edition in October 2012. Constructed on a research of structure and style of the program, based on eleven chosen editions, this project tries to identify regularities and changes during the almost three years of existence, as well as their linking with the original project configuration to which it is linked and which has as its main objective the realization of a differentiated thematic approach in relation to sports journalism commonly practiced in the media
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The frequency spectrums are inefficiently utilized and cognitive radio has been proposed for full utilization of these spectrums. The central idea of cognitive radio is to allow the secondary user to use the spectrum concurrently with the primary user with the compulsion of minimum interference. However, designing a model with minimum interference is a challenging task. In this paper, a transmission model based on cyclic generalized polynomial codes discussed in [2] and [15], is proposed for the improvement in utilization of spectrum. The proposed model assures a non interference data transmission of the primary and secondary users. Furthermore, analytical results are presented to show that the proposed model utilizes spectrum more efficiently as compared to traditional models.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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The Frequency Modulated - Atomic Force Microscope (FM-AFM) is apowerful tool to perform surface investigation with true atomic resolution. The controlsystem of the FM-AFM must keep constant both the frequency and amplitude ofoscillation of the microcantilever during the scanning process of the sample. However,tip and sample interaction forces cause modulations in the microcantilever motion.A Phase-Locked Loop (PLL) is used as a demodulator and to generate feedback signalto the FM-AFM control system. The PLL performance is vital to the FM-AFMperformace since the image information is in the modulated microcantilever motion.Nevertheless, little attention is drawn to PLL performance in the FM-AFM literature.Here, the FM-AFM control system is simulated, comparing the performancefor di erent PLL designs.
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Produce radio advertisements to convey social UNESP FM Radio. This is the purpose of “Agência PropagAção”, extension project of the Faculty of Arts, Architecture and Communication Unesp, Bauru, SP, composed of 15 students of Communication and Design, coordinated by the teacher responsible. This extension project, however, over the four years of operation, has evolved from a manufacturing space of advertisements for a creative environment where teaching and learning are associated with teaching, research and extension. In this group, converge knowledge from different areas of social communication, resulting in scientific research initiation, completion of course work and professional practice with the provision of community services. Organized as an advertising agency, teachers and students experience education tutorial, extracurricular, adding, as a collective, integrated and interdisciplinary knowledge for the training of professionals with technical expertise, scientific, technological and academic.