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  5. VOL 46, NO 3 (2024)
  6. pp. 97-113

DATA PROCESSING BASED ON FAST FOURIER TRANSFORM IN A CORRELATION LEAK DETECTOR

A.A. Vladimirsky, I.A. Vladimirsky, D.N. Semenyuk

Èlektron. model. 2024, 46(3):97-113

https://doi.org/10.15407/emodel.46.03.097

ABSTRACT

Fast Fourier transform (FFT) algorithms are widely used in correlation leak detectors (CD) in the implementation of digital data processing. The combination of the computational efficiency of FFT with modern high-performance mobile computing means provides acceptable data processing time during leak detection. Due to the increase in the general wear and tear of pipeline networks in many countries, the requirements for reliability and efficiency in detecting and repairing damage are increasing. Meeting these requirements means complicating data processing algorithms to more fully take into account the diversity of the acoustic environment. This is the reason for the special interest in FFT as a basic, universal algorithm, on the basis of which it is promising to further develop data processing in CD. The article describes the experience of the authors in the application of FFT in parametric CD, in particular, the use of FFT in spectral evaluation and digital filtering of signals, calculations of digital filters, calculation and further processing of correlation functions is considered.

KEYWORDS

pipeline, leak detector, correlation, digital filtering.

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