Zhurnal Radioelektroniki - Journal of Radio Electronics. eISSN 1684-1719. 2020. No. 12
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DOI https://doi.org/10.30898/1684-1719.2020.12.15

UDC 621.396

 

Detection of ultra-wideband quasi-radio signals against linear frequency modulation interference

 

Y. E. Korchagin 1, K. D. Titov 1, A. A. Makarov 2, O. N. Zavalishina 1

Voronezh State University, University sq. 1, Voronezh 394018, Russia

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


The paper is received on December 15, 2020

 

Abstract. In this paper, we synthesize and analyze algorithms for detecting ultra-wideband quasi-radio signals against the background of Gaussian white noise and interference with linear frequency modulation under various a priori uncertainty conditions. Among the many UWB signals, a separate most promising class was identified Ц UWB QRS, whose structure is similar to narrowband radio signals, but the condition of relative narrowband for them is not fulfilled. A linear frequency modulation signal is considered as an interference when estimating the effectiveness of the detector of a UWB QRS. The selected interfering signal can be either intentional or unintentional, and is of the greatest interest to consider, since it has a similar structure to a useful signal and have the greatest destructive effect on correct reception. The dependence of the signal omission probability on the interference parameter and the interference-to-signal ratio is obtained, which allows to increase the detection efficiency by several orders of magnitude. A comparative analysis of the resistance to interfering signals of various detector circuits is performed. Recommendations are formulated to improve the efficiency of detectors operating in a complex interference environment, destabilizing information and technical influences, or attempts to unauthorized access to information.

Key words: ultra-wideband, quasi-radio signal, interference with linear frequency modulation, detection, parameter estimation.

References

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For citation:

Korchagin Y.E., Titov K.D., Makarov A.A., Zavalishina O.N. Detection of ultra-wideband quasi-radio signals against linear frequency modulation interference. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2020. No.12. https://doi.org/10.30898/1684-1719.2020.12.15† (In Russian)