Zhurnal Radioelektroniki - Journal of Radio Electronics. ISSN 1689-1719. 2020. No. 3
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Full text in Russian (pdf)
Russian page

 

DOI 10.30898/1684-1719.2020.3.5

UDC 621.37

 

Accelerated method of determining the distance to the object in the presence of frequency dispersion of the phase velocity

 

A.  A. Kalshchikov, V. V. Shtykov

National Research University "Moscow Power Engineering Institute", Krasnokazarmennaya str., 14, Moscow 111250, Russia

 

 The paper is received on March 2, 2020

 

Abstract. A method for calculating the distance to the object in a medium with the presence of frequency dispersion of a phase velocity is considered. An analytical expression is obtained for the probe function characteristic of the dispersion law of collisionless plasma, waveguide structures of electromagnetic and elastic waves. A method for accelerating the proposed method by reducing the computational complexity from O(N2) to O(NlogN) operations using the fast Fourier transform algorithm is proposed.

Key words: dispersion, FFT, broadband signals.

References

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For citation:

Kalshchikov A.A., Shtykov V.V. Accelerated method of determining the distance to the object in the presence of frequency dispersion of the phase velocity. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2020. No. 3. Available at http://jre.cplire.ru/jre/mar20/5/text.pdf.  DOI 10.30898/1684-1719.2020.3.5