RU94038816A - Method measuring amplitude and frequency of sinusoidal signals - Google Patents

Method measuring amplitude and frequency of sinusoidal signals Download PDF

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Publication number
RU94038816A
RU94038816A RU94038816/09A RU94038816A RU94038816A RU 94038816 A RU94038816 A RU 94038816A RU 94038816/09 A RU94038816/09 A RU 94038816/09A RU 94038816 A RU94038816 A RU 94038816A RU 94038816 A RU94038816 A RU 94038816A
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RU
Russia
Prior art keywords
frequency
signal
signals
band
sinusoidal signals
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RU94038816/09A
Other languages
Russian (ru)
Inventor
А.А. Плавильщиков
Original Assignee
А.А. Плавильщиков
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Publication date
Application filed by А.А. Плавильщиков filed Critical А.А. Плавильщиков
Priority to RU94038816/09A priority Critical patent/RU94038816A/en
Publication of RU94038816A publication Critical patent/RU94038816A/en

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Abstract

FIELD: measurement technology, spectral analysis of signals with use of filtration method. SUBSTANCE: narrow-band is subjected to discretization with frequency fequal to 4·f, where fis medium frequency of analyzer frequency band and to quantization, numbers of half-periods of signal presented by first, second and third readings of signal are determined and obtained data are used to find amplitude and frequency of signal. EFFECT: expanded functional capabilities of method thanks to measurement of root-mean-square values of narrow-band signals and capability of detection of sinusoidal signals in analyzed frequency bands, enhanced noise immunity of method while measuring parameters of sinusoidal signals.

Claims (1)

Предполагаемое изобретение относится к измерительной технике и может быть использовано при спектральном анализе сигналов с использованием метода фильтрации. Целью предполагаемого изобретения является расширение функциональных возможностей способа за счет измерения среднеквадратичных значений узкополосных сигналов и возможности обнаружения синусоидальных сигналов в анализируемых полосах частот, а также повышения помехоустойчивости способа при измерении параметров синусоидальных сигналов. Поставленная цель достигается тем, что узкополосный сигнал подвергают дискретизации с частотой fд, равной 4•fcp, где f cp - средняя частота анализируемой полосы частот, и квантованию, определяют числа полупериодов сигнала, представляемых одним, двумя и тремя отсчетами сигнала, а полученные данные используют для определения амплитуды и частоты сигнала.The alleged invention relates to measuring technique and can be used in spectral analysis of signals using the filtering method. The aim of the proposed invention is to expand the functionality of the method by measuring the rms values of narrowband signals and the possibility of detecting sinusoidal signals in the analyzed frequency bands, as well as improving the noise immunity of the method when measuring parameters of sinusoidal signals. This goal is achieved by the fact that the narrow-band signal is subjected to sampling with a frequency f d equal to 4 • f cp , where f cp is the average frequency of the analyzed frequency band, and quantization determines the number of half-periods of the signal represented by one, two and three samples of the signal, and the received data is used to determine the amplitude and frequency of the signal.
RU94038816/09A 1994-10-17 1994-10-17 Method measuring amplitude and frequency of sinusoidal signals RU94038816A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94038816/09A RU94038816A (en) 1994-10-17 1994-10-17 Method measuring amplitude and frequency of sinusoidal signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94038816/09A RU94038816A (en) 1994-10-17 1994-10-17 Method measuring amplitude and frequency of sinusoidal signals

Publications (1)

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RU94038816A true RU94038816A (en) 1997-05-27

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RU94038816/09A RU94038816A (en) 1994-10-17 1994-10-17 Method measuring amplitude and frequency of sinusoidal signals

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RU (1) RU94038816A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2582880C2 (en) * 2015-03-30 2016-04-27 Гарри Романович Аванесян Digital meter of sinusoidal voltage parameters
WO2017044011A1 (en) * 2015-09-12 2017-03-16 Андрей Викторович ШПИТАЛЬНЫЙ Harmonic signal processing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2582880C2 (en) * 2015-03-30 2016-04-27 Гарри Романович Аванесян Digital meter of sinusoidal voltage parameters
WO2017044011A1 (en) * 2015-09-12 2017-03-16 Андрей Викторович ШПИТАЛЬНЫЙ Harmonic signal processing method

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