Zhurnal Radioelektroniki - Journal of Radio Electronics. eISSN 1684-1719. 2020. No. 12
ContentsFull text in Russian (pdf)
DOI https://doi.org/10.30898/1684-1719.2020.12.11
UDC 621.391.1
Mitigation of narrowband stationary interference in the telemetry complex based on an autocompensator with remote channels
V. Yu. Semenov 1,2, A.V. Korotyshev 3
1 N.I.Lobachevsky Nizhni Nivgorod State University, Gagarina prosp., 23, Nizhnij Novgorod 603950, Russia
2 Design Bureau" Kuntsevo", Vereiskaya str., 29, Moscow 125319, Russia
3 Yu.E.Sedakov Scientific Research Institute of Measuring Systems", Tropinin str., 47, Nizhnij Novgorod 603137, Russia
The paper is received on December 8, 2020
Abstract. The problem of combating stationary interference in the areas of operation of ground-based telemetry systems is considered. One of the most annoying types of interference is high-power narrowband TV interference. They are emitted from television towers and their position is known in advance. A solution to this problem is proposed by using a multichannel auto-compensator with a non-standard arrangement of compensation channels. An analytical solution is obtained for the optimal weight vector of the auto-compensator of interference, based on the method of power vectors. This method does not require direct inversion of the interference correlation matrix. The computational complexity of the proposed method is estimated and it is shown that it has a much lower computational complexity compared to the method of direct inversion of the interference correlation matrix. The results of numerical simulation of the interference suppression coefficient are presented. Its effectiveness has been shown.
Key words: telemetry complex, multichannel auto-compensator of interference, phased antenna array, power basis, suppression coefficient, narrow-band interference.
References
1. Chirov D.S., Lobov E.M. The choice of the signal-code structure for the command-telemetric radio communication line with medium and long-range unmanned aerial vehicles. T-Comm. 2017. No.10. P.21-28. (In Russian)
2. Skrypnik O.N., Patrikeev O.V., Astrakhantseva N.G. Suppression of interference in broadband UHF radio channels. Scientific bulletin of MSTU GA. 2014. No. 209. P. 129-135. (In Russian)
3. Koshkarov A.S., Dobrikov V.A. A two-stage algorithm for detecting and rejecting multifrequency interference in the navigation equipment of GLONASS consumers. Informatsionnyye kanaly i sredy - Information channels and environments. 2017. No.2. P.88-95. (In Russian)
4. Shirman Ya.D., editor. Radioelektronnyye sistemy: Osnovy postroyeniya i teoriya. Spravochnik [Radioelectronic Systems: Fundamentals and Theory. Directory]. Moscow. Radiotekhnika Publ. 2007. 512 p. (In Russian)
5. Widrow B., Glover D., McCool D. Jr., Kaunitz D., Williams S., Hearn R., Seidler D., Dong E. Jr., Goodlin R. Adaptive Noise Compensators. Principles of construction and application. TIIER. 1975. T. 63. No. 12. P. 69 -98.
6. Tikhonov A.I., Arsenin V.Ya. Metody resheniya nekorrektnykh zadach [Methods for solving ill-posed problems]. Moscow, Nauka Publ. 1979. 288 p. (In Russian)
7. Abramovich Yu.I., Nevrev F.I. Analysis of the effectiveness of adaptive maximization of the signal-to-noise ratio using the inversion of the correlation matrix estimate. Journal of Communications Technology and Electronics. 1981. Vol. 26, No.12. P. 2558-2566 (In Russian)
8. Ermolaev V.T., Semenov V.Yu., Sorokin I.S., Flaxman A.G., Hawks A.V.. Regularization of the weight vector of an adaptive antenna array by limiting the number of basis vectors. Izvestiya vuzov. Radiofizika - Proceedings of Гniversities. Radiophysics 2015. Vol.58. No.3. P.235-243. (In Russian)
9. Voevodin V.V. Lineynaya algebra [Linear algebra]. Moscow, Nauka Publ. 1980. 400 p. (In Russian)
For citation:
Semenov V.Yu., Korotyshev A.V. Mitigation of narrowband stationary interference in the telemetry complex based on an autocompensator with remote channels. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2020. No.12. https://doi.org/10.30898/1684-1719.2020.12.11 (In Russian)