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by Sultana del Lago Editores (Editor), José Morón (Author)
En este libro se presentan los principios b sicos necesarios para el an lisis de se ales y sistemas. La motivaci n primordial para la presentaci n de este material es la presencia de un curso b sico de este t pico en casi todos los programas de estudio de Ingenier a El ctrica. Los dos primeros cap tulos est n dedicados a las definiciones y propiedades b sicas de las se ales y los sistemas, y se trata con especial detenimiento los sistemas lineales que no var an en el tiempo y los teoremas de convoluci n y superposici n. El estudio de los sistemas, tanto en tiempo continuo como en tiempo discreto, se presenta en forma paralela y los ejemplos discutidos est n elaborados bajo la misma caracter stica de presentar los dos tipos de sistemas en forma conjunta. Los Cap tulos Tres y Cuatro presentan una introducci n al an lisis de Fourier tanto en tiempo continuo como en tiempo discreto. Se trata de presentar la serie y la transformada de Fourier en una forma sencilla pero con suficiente rigor matem tico de forma de obtener una base s lida en el conocimiento de esta herramienta matem tica con grandes aplicaciones en el campo de la ingenier a y, especialmente, en la rama de las telecomunicaciones. El libro no estar a completo sin una presentaci n de la transformada de Laplace y la transformada Z; stas se presentan en los Cap tulos Cinco y Seis y all se estudian las propiedades de las transformadas y sus aplicaciones. El Cap tulo Siete est constituido por un ejemplo de una aplicaci n t pica de la teor a de Fourier en el an lisis de los Sistemas de Comunicaciones: los esquemas de Modulaci n de Amplitud. Los t picos mencionados en los p rrafos anteriores van acompa ados por un buen n meros de ejemplos, todos stos desarrollados paralelamente en tiempo discreto y en tiempo continuo de forma que el lector adquiera en forma conjunta las semejanzas y las diferencias en las propiedades y aplicaciones de ambas modalidades de sistemas y se ales. El texto est dirigido principalmente a estudiantes de ingenier a el ctrica y, en especial, a aquellos interesados en el estudio de sistemas lineales y en las aplicaciones a las telecomunicaciones, y tambi n a aquellos interesados en el estudio de la teor a de Fourier por la importancia de sta en la formulaci n de modelos de fen menos f sicos.
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