High-Processing Method of Spectral Analysis Wide-Signals

Bortnyk, Gennadiy; Vasylkivskyi, Mikola; Kychak, Vasyl

doi:10.1109/ukrmico47782.2019.9165507

Cited by 4 publications

(4 citation statements)

References 5 publications

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“…The digital equivalent of LS is memorized, and then reproduced using a digital-toanalog converter (DAC) 3 . This method is characterized by narrow functional capabilities and low productivity of LS processing 10,11,12 .…”

Section: The Choice and Justification Of The Memory And Restoration M...mentioning

confidence: 99%

“…The efficiency criterion for the proposed DLSRD is the performance, which is conveniently estimated by the number of multiplication operations. The generalization of this criterion is the productivity coefficient, which demonstrates the gain in the number of required "long" multiplication operations in the application of the proposed methods of LS processing in relation to the processing methods of based on the traditional methods of FFT and IDFF 11 :…”

Section: Performance Analysismentioning

confidence: 99%

See 1 more Smart Citation

Digital restoration of signals in fiber optic transmission systems

Bortnyk

Kychak²,

Vasilevskyi³

et al. 2022

Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments 2022

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The high-performance methods of multi-stage digital processing of linear signals of fiber optic transmission systems in the spectral and time domain with the use of Fourier transform methods are proposed. Based on the proposed methods of signal processing, a digital device for restoring of linear signals in fiber-optic transmission systems is developed. The advantage of the device is high performance, which enables digital processing of linear signals in the spectral region without loss of information.

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Section: The Choice and Justification Of The Memory And Restoration M...mentioning

confidence: 99%

Section: Performance Analysismentioning

confidence: 99%

Digital restoration of signals in fiber optic transmission systems

Bortnyk

Kychak²,

Vasilevskyi³

et al. 2022

Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments 2022

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show abstract

“…After the simulation reached a steady state, the 10 ms portion of the signal from the V_EMI_P node was used to calculate FFT with the following parameters: sample size of the analyzed signal N is equal to 1,000,002 points, lowest analyzed frequency f l is equal to 4500 Hz (which reflects half the RBW of the measurement), highest analyzed frequency f h is equal to 30 MHz and the sampling frequency f s is equal to 100 Mhz. Calculating the criteria k f ≤ N 2 and 2 N ≤ β ≤ 1 from [14] yields that FFT parameters are correct, where:…”

Section: Time Domain Simulationmentioning

confidence: 99%

Estimation of SMPS’ Conducted Emission According to CISPR Standards

Malczyk¹,

Bara²,

Lu³

2022

Applied Sciences

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Switched-mode power supplies are very efficient and commonly used components in products nowadays. However, due to currents switched at a high frequency, the conducted emission test is a high concern for designers. The market is increasingly demanding in terms of the size of the components and their efficiency. In order to meet market requirements and reduce the size of the power supply (both built into the product or standalone), the switching frequency of the SMPS is rising; hence the base frequency and its harmonics cover a frequency range of the conducted emission test. Due to this fact, the estimation of the test result becomes a great concern for the designer. This paper describes the approach that one can utilize to estimate the switched-mode power supply’s conducted emission as a standalone component with simulation tools using only the power supply being designed. The workflow, which is the result of this work, can be utilized in order to optimize the design of power suppliers from the conducted emission perspective.

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“…There are many ways to define thresholds and decision functions. For example, as the decision function J[r(t)], one can choose the norm of the difference vector signal, and as the threshold function T(t), choose a certain constant positive numberthe case of a fixed threshold [5,6].…”

Section: Fig 2 Scheme For Generating a Difference Signal In The Frementioning

confidence: 99%