Stability of coherent receiver DSP algorithms to the rapid polarization rotation caused by lightning discharge

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Abstract

In this paper stability of digital signal processing (DSP)¸ algorithms of coherent receiver to the rapid polarization rotation caused by lightning stroke in an optical power ground wearer (OPWG)¸ by numerical simulation has been investigated. It is found that the rate of polarisation state (PS)¸ change is the most important parameter determining the increase in the receiver bit error rate ·BER¸. A detailed analysis of the DSP algorithms operation under the conditions of fast SP rotation has shown that the reason of the error rate growth is the limited speed of resynchronization and adaptive filtering blocks.

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About the authors

T. O. Bazarov

Moscow Institute of Physics and Technology; T8 LLC

Email: lukashova@t8.ru

аспирант НИУ МФТИ; ведущий инженер-исследователь ООО «Т8»

Russian Federation, Moscow; Moscow

A. N. Dorozhkin

Lomonosov Moscow State University; Т8 NTC LLC

Email: lukashova@t8.ru

аспирант МГУ им. М.В.Ломоносова; инженер-исследователь 1-й категории ООО «Т8 НТЦ»

Russian Federation, Moscow; Moscow

T. O. Lukinykh

Т8 NTC LLC

Author for correspondence.
Email: lukashova@t8.ru

инженер 2-й категории 

Russian Federation, Moscow

O. E. Nanii

Lomonosov Moscow State University; Moscow Institute of Physics and Technology; Т8 NTC LLC

Email: lukashova@t8.ru

д.ф.-м.н., проф. МГУ им. М.В.Ломоносова; проф. НИУ МФТИ; начальник научного отдела ООО «Т8 НТЦ»

Russian Federation, Moscow; Moscow; Moscow

M. A. Senko

Lomonosov Moscow State University; T8 LLC

Email: lukashova@t8.ru

аспирант МГУ им. М.В.Ломоносова; инженер-исследователь 2-й категории ООО «Т8»

Russian Federation, Moscow; Moscow

V. N. Treschikov

Т8 NTC LLC

Email: lukashova@t8.ru

к.ф.-м.н., генеральный директор 

Russian Federation, Moscow

References

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Supplementary files

Supplementary Files
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2. Fig.1. Characteristic view of the time profile of the SP rotation velocity caused by a lightning strike in the power line support (x = 0), modeled in the isotropic fiber approximation

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3. Fig. 2. Schematic of the numerical experiment

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4. Fig.3. Graph of dependence of the penalty ΔSNR on the value of the derivative dΩ/dt at Ωmax = 1 Mrad/s. Resynchronization by Gardner's algorithm

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5. Fig.4. Graph of dependence of the penalty ΔSNR on the value of the derivative dΩ/dt at Ωmax = 2 Mrad/s. Resynchronization by Gardner's algorithm

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6. Fig.5. Graph of the dependence of the penalty ΔSNR on the value of Ωmax at a fixed derivative. Resynchronization was performed using Gardner's algorithm

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7. Fig.6. Graph of dependence of the penalty ΔSNR on the value of Ωmax at a fixed derivative. Ideal resynchronization

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Copyright (c) 2024 Bazarov T.O., Dorozhkin A.N., Lukinykh T.O., Nanii O.E., Senko M.A., Treschikov V.N.

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