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Journal Achievements of Modern Radioelectronics №12 for 2022 г.
Article in number:
Estimation of the time parameters of pulses based on the Wigner distribution
Type of article: scientific article
DOI: https://doi.org/10.18127/j20700784-202212-02
UDC: 621.391
Keywords: Measurement of radio pulse parameters additive noise channel joint time-frequency signal processing Wigner pseudo-distribution
Authors:

A.R. Bestugin1, E. A. Antokhin2, S.V. Dvornikov3, S.S. Dvornikov4, I.A. Kirshina5

1-5 St. Petersburg State University of Aerospace Instrumentation (St. Petersburg, Russia)

3,4 Military Communication Academy (St. Petersburg, Russia)

Abstract:

Problem Statement. The problems of estimation of frequency-time parameters of radio pulses with high-frequency filling are primarily due to the negative effects of noise and interference of radio channels. Therefore, the search for constructive approaches to improve the quality of estimates obtained from measurements is an urgent task for radio engineering and radiolocation.

Objective. The purpose of this work is to find new approaches to improve the accuracy of measurements under considered conditions. In this case, the considered problem is significantly worsened in the case, if the processing is exposed to a multicomponent signal of a random character with an a priori unknown structure. In this case it is appropriate to use the methods of joint frequency-time processing.

Results. In this paper we present the results of our study on the estimation of time-frequency parameters of radio pulses in channels with additive noise based on the Wigner pseudo-distribution.

Practical Significance. Presented are the results of the practical experiment that confirmed the validity and feasibility of the choice. The quantitative gain in the accuracy of measurement of the complex structure test signal duration based on the Wigner pseudo-distribution in relation to the Fourier transform windowing is shown. Conclusions are drawn and directions for further research are formulated.

Pages: 7-14
For citation

Bestugin A.R., Antokhin E.A., Dvornikov S.V., Dvornikov S.S., Kirshina I.A. Estimation of the time parameters of pulses based on the Wigner distribution. Achievements of modern radioelectronics. 2022. V. 76. № 12. P. 7–14. DOI: https://doi.org/10.18127/j20700784-202212-02 [in Russian]

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Date of receipt: 29.09.2022
Approved after review: 10.10.2022
Accepted for publication: 21.11.2022