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Свойства сигналов, Ð¸ÑÐ¿Ð¾Ð»ÑŒÐ·ÑƒÐµÐ¼Ñ‹Ñ Ð² радиосистемаÑ

учебное пособие
descriptionPublicationkeyboard_double_arrow_right Other literature type 01 Jan 1980 Russian Publisher:[ЛПИ]

doi: 10.18720/spbpu/2/si21-251

Свойства сигналов, Ð¸ÑÐ¿Ð¾Ð»ÑŒÐ·ÑƒÐµÐ¼Ñ‹Ñ Ð² радиосистемаÑ

Abstract

Учебное пособие для студентов, Ð¸Ð·ÑƒÑ‡Ð°ÑŽÑ‰Ð¸Ñ Ñ€Ð°Ð·Ð´ÐµÐ»Ñ‹ курсов Â«Ð Ð°Ð´Ð¸Ð¾Ñ‚ÐµÑ Ð½Ð¸Ñ‡ÐµÑÐºÐ¸Ðµ системы» и Â«Ð Ð°Ð´Ð¸Ð¾Ñ‚ÐµÑ Ð½Ð¸Ñ‡ÐµÑÐºÐ¸Ðµ системы передачи информации». Рассмотрены различные представления сигналов, основанные на Ð¾Ð±Ð¾Ð±Ñ‰ÐµÐ½Ð½Ñ‹Ñ Ñ€ÑÐ´Ð°Ñ Ð¤ÑƒÑ€ÑŒÐµ и использовании теории аналитического сигнала. Особое внимание, уделено вопросам дискретизации и восстановления Ð½ÐµÐ¿Ñ€ÐµÑ€Ñ‹Ð²Ð½Ñ‹Ñ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² применительно как к дискретным системам передачи Ð½ÐµÐ¿Ñ€ÐµÑ€Ñ‹Ð²Ð½Ñ‹Ñ ÑÐ¾Ð¾Ð±Ñ‰ÐµÐ½Ð¸Ð¸, так и к дискретным методам обработки сигнала. Проведен анализ погрешностей, ÑÐ²ÑÐ·Ð°Ð½Ð½Ñ‹Ñ Ñ использованием теоремы Котельникова при дискретизации Ñ€ÐµÐ°Ð»ÑŒÐ½Ñ‹Ñ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð², рассмотрен математический аппарат Ð´Ð¸ÑÐºÑ€ÐµÑ‚Ð½Ñ‹Ñ Ð¿Ñ€ÐµÐ¾Ð±Ñ€Ð°Ð·Ð¾Ð²Ð°Ð½Ð¸Ð¹ Лапласа и Фурье, в том числе краткие сведения об алгоритме быстрого преобразования Фурье. Глава, посвященная функциям неопределенности сигналов, включает также анализ функций взаимной неопределенности, вид ÐºÐ¾Ñ‚Ð¾Ñ€Ñ‹Ñ Ð¸Ð³Ñ€Ð°ÐµÑ‚ важную роль в ÑÐ¾Ð²Ñ€ÐµÐ¼ÐµÐ½Ð½Ñ‹Ñ ÑÐ¸ÑÑ‚ÐµÐ¼Ð°Ñ Ð¿ÐµÑ€ÐµÐ´Ð°Ñ‡Ð¸ информации.

Keywords

Радиосигналы, Ð Ð°Ð´Ð¸Ð¾Ñ‚ÐµÑ Ð½Ð¸Ñ‡ÐµÑÐºÐ¸Ðµ системы

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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