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Алгоритм ÑÐ¸Ð½Ñ Ñ€Ð¾Ð½Ð¸Ð·Ð°Ñ†Ð¸Ð¸ внутрисистемного времени

выпускная квалификационная работа бакалавра

Алгоритм ÑÐ¸Ð½Ñ Ñ€Ð¾Ð½Ð¸Ð·Ð°Ñ†Ð¸Ð¸ внутрисистемного времени

Abstract

Цель работы – исследование и разработка алгоритма синхронизации времени по протоколу NTP. В результате исследования были рассмотрены различные алгоритмы синхронизации внутрисистемного времени, с упором на протокол синхронизации NTP (Network Time Protocol). Рассматриваются особенности работы данного протокола, его эффективность и влияние на точность позиционирования в системах спутниковой навигации. В рамках исследования проводится анализ применения NTP для синхронизации времени в системах спутниковой навигации и оценка возможности повышения качества позиционирования в условиях недостаточной синхронизации внутрисистемного времени. Был создан алгоритм синхронизации, обладающий более высокой устойчивостью. Изучено назначение и область применения данного алгоритма. Использовались открытые образовательные ресурсы и программы поиска и анализа информации. Метод исследования включает в себя анализ применения NTP для синхронизации времени в системах спутниковой навигации, оценку возможности повышения качества позиционирования в условиях недостаточной синхронизации внутрисистемного времени, а также написание кода алгоритма в Qt для дальнейшего тестирования и оценки его эффективности.

The purpose of the work is to study and develop a synchronization algorithm using the NTP protocol. As a result of the study, various algorithms for connecting intrasystem time were considered, with an emphasis on the NTP (Network Time Protocol) connection protocol. The features of the operation of this protocol, its effectiveness and influence on the accuracy of the position of satellite navigation are considered. As part of the general study, an analysis is made of the use of NTP to search for time in satellite navigation sources and the possibility of assessing the quality of search in conditions of insufficient search for intrasystem time. A detection algorithm has been created that has a higher frequency of occurrence. The application and scope of this algorithm have been studied. Open educational resources and programs for searching and analyzing information were used. The research method includes the use of NTP analysis to determine the time in satellite navigation, the frequent possibilities of quality assessment in conditions of insufficient determination of intrasystem time, as well as the description of the algorithm code in Qt to evaluate measurements and evaluate its effectiveness.

Keywords

стандарт частоты, sync protocol, synchronization algorithm, внутрисистемное время, протокол ÑÐ¸Ð½Ñ Ñ€Ð¾Ð½Ð¸Ð·Ð°Ñ†Ð¸Ð¸, time keeping, спутниковая навигация, satellite navigation, frequency standard, Ñ Ñ€Ð°Ð½ÐµÐ½Ð¸Ðµ времени, international time, алгоритм ÑÐ¸Ð½Ñ Ñ€Ð¾Ð½Ð¸Ð·Ð°Ñ†Ð¸Ð¸

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selected citations
These citations are derived from selected sources.
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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