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Улучшение пространственной разрешающей способности оптической когерентной томографии при помощи методов параметрической оценки спектра

выпускная квалификационная работа магистра

Улучшение пространственной разрешающей способности оптической когерентной томографии при помощи методов параметрической оценки спектра

Abstract

Тема выпускной квалификационной работы: «Улучшение пространственной разрешающей способности оптической когерентной томографии при помощи методов параметрической оценки спектра». Объект исследования – обработка интерференционных сигналов. Цель работы – реализация и применение метода параметрической оценки спектра при обработке интерференционных сигналов оптической когерентной томографии (ОКТ) для улучшения аксиального пространственного разрешения. В данной работе был продемонстрирован метод обработки интерференционного сигнала ОКТ, основанный на алгоритме root-MUSIC, для улучшения осевого пространственного разрешения. Экспериментальная проверка эффективности предложенного метода проводилась путем измерения и визуализации геометрических параметров сечений многомодовых и одномодовых оптических волокон. Применение данного метода открывает возможность неразрушающего контроля внутренней структуры оптически-интегральных компонент, геометрии оптических волокон, необходимого в процессе производства. Учтены терминологические особенности предметной области и применены программные средства для решения задач. Применено специализированное программно-математическое обеспечение MATLAB.

The subject of the graduate qualification work: “Improving the spatial resolution of optical coherence tomography using methods of parametric spectrum estimation”. The object of study is the processing of interference signals. The aim is to implement and apply the method of parametric spectrum estimation when processing interference signals of optical coherence tomography (OCT) to improve axial spatial resolution. In this work, an OCT interference signal processing method based on the root-MUSIC algorithm was demonstrated to improve axial spatial resolution. Experimental verification of the effectiveness of the proposed method was carried out by measuring and visualizing the geometric parameters of cross-sections of multimode and single-mode optical fibers. The use of this method opens up the possibility of non-destructive testing of the internal structure of optically integrated components and the geometry of optical fibers required during the production process. Terminological features of the subject area are taken into account and software tools are used to solve problems. Specialized software and mathematics were used MATLAB.

Keywords

оптическое волокно, optical fiber, optical coherence tomography, пространственное разрешение, spatial resolution, оптическая когерентная томография, MUSIC

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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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