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Compensação da dispersão eletrónica na comunicação por fibra ótica
Paperback
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ISBN10: 6208537312
ISBN13: 9786208537319
Publisher: Edicoes Nosso Conhecimento
Published: Jan 10 2025
Pages: 76
Weight: 0.27
Height: 0.18 Width: 6.00 Depth: 9.00
Language: Portuguese
ISBN13: 9786208537319
Publisher: Edicoes Nosso Conhecimento
Published: Jan 10 2025
Pages: 76
Weight: 0.27
Height: 0.18 Width: 6.00 Depth: 9.00
Language: Portuguese
O fenómeno de dispersão limita muitas vezes o desempenho da ligação de comunicação por fibra ótica, o que faz com que os impulsos ópticos se alarguem à medida que viajam através da fibra. Estes impulsos alargados podem sobrepor-se uns aos outros na saÃda, dando origem a interferência intersimbólica (ISI). O fenómeno de dispersão é um grande obstáculo à obtenção de taxas de dados elevadas e ligações mais longas nos sistemas de comunicação por fibra ótica, pelo que a compensação da dispersão se tornou uma questão de grande importância. Um dos métodos para reduzir a ISI no sinal é a equalização do sinal recebido. Neste livro, investigou-se a equalização adaptativa para reduzir a ISI causada pela dispersão em ligações ópticas. São efectuadas simulações utilizando um equalizador eletrónico para monitorizar e suprimir a dispersão em ligações ópticas.
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