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Цифровая обработка импульсных сигналов для определения частотных характеристик преобразователей тока

Цифровая обработка импульсных сигналов для определения частотных характеристик преобразователей тока

Abstract

Предложен метод определения амплитуднои фазочастотных характеристик линейных преобразователей тока, основанный на совместной цифровой обработке входного короткого импульсного воздействия и отклика на него. Частотная зависимость коэффициента передачи преобразователя рассчитывается с помощью компонентов комплексных спектральных преобразований напряжений с выходов исследуемого и эталонного преобразователей тока. Предложены пути повышения точности метода, основанные на усреднении по ансамблю спектральных составляющих сигналов.

The authors propose the method for determining amplitudeand phase-frequency characteristics of linear current transducers based on digital co-processing of input transducer impulse action and response to it. Frequency dependence of shunt transmission coefficient is computed by the components of complex spectral transformations of voltage from the output of the test and reference current transducers. The authors propose the ways of increasing the method accuracy based on ensemble averaging of signal spectral components.

Keywords

ЦИФРОВАЯ ОБРАБОТКА СИГНАЛОВ, ПРЕОБРАЗОВАНИЕ ФУРЬЕ, ФУНКЦИЯ КОГЕРЕНТНОСТИ, ТОКОВЫЙ ПРЕОБРАЗОВАТЕЛЬ, ДИНАМИЧЕСКИЕ ХАРАКТЕРИСТИКИ

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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