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Аналого-цифровое преобразование сигналов с угловой манипуляцией для программно-определяемых радиосистем

Аналого-цифровое преобразование сигналов с угловой манипуляцией для программно-определяемых радиосистем

Abstract

The paper deals with the search of ways for speeding up and accuracy increase of conversion of modern analog-to-digital converters. The main shortcomings interfering a solution of this task including the field of optoelectronic analog-to-digital converters are provided. The proposed solution gives the chance to increase high-speed performance of analog-to-digital converters on the basis of holographic interferometry principles without reducing their accuracy of conversion. The optical scheme of interferential and holographic method of analog-to-digital conversion and results of its mathematical modeling are provided. Some recommendations about hardware implementation of this analog data digitizer are formulated. The physical principles and approaches to a choice of the converter structural elements are explained. An example of forming the functional scheme of a decoder for a luminous flux intensity in terms of registration of analog-to-digital converter is reviewed. The practical importance of the provided method consists in possibility of creation of analog-to-digital converters with high-speed performance about 600 MHz and with an accuracy of conversion up to 12 bits.

Рассмотрены вопросы поиска путей повышения быстродействия и точности преобразования современных аналогоцифровых преобразователей. Представлены основные недостатки, препятствующие решению данной задачи, в том числе и в области оптоэлектронных аналого-цифровых преобразователей. Предлагаемое в работе решение на основе принципов голографической интерферометрии дает возможность увеличить быстродействие аналого-цифровых преобразователей, не снижая их точности преобразования. Предоставлена оптическая схема интерференционно-голографического метода аналого-цифрового преобразования и результаты его математического моделирования. Формулируются некоторые рекомендации по аппаратной реализации данного аналого-цифрового преобразователя. Поясняются физические принципы и подходы к выбору структурных элементов преобразователя. Рассматривается пример формирования функциональной схемы дешифратора интенсивности светового потока в плоскости регистрации аналого-цифрового преобразователя. Практическая значимость представленного метода заключается в возможности создания аналого-цифровых преобразователей с быстродействием порядка 600 МГц и точностью преобразования до 12 бит.

Keywords

АНАЛОГО-ЦИФРОВОЕ ПРЕОБРАЗОВАНИЕ,ПРОГРАММНО-ОПРЕДЕЛЯЕМАЯ РАДИОСИСТЕМА,ГОЛОГРАФИЧЕСКАЯ ИНТЕРФЕРЕНЦИЯ,ШИФРАТОР,ANALOG-TO-DIGITAL CONVERSION,SOFTWARE DEFINED RADIO SYSTEM,HOLOGRAPHIC INTERFERENCE,CODER

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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!
0
Average
Average
Average
gold