A.A. Pshenitsyn1, S.B. Zhironkin2, A.A. Bliznyuk3

1–3 G.K. Zhukov Air and Space Defense Academy (Tver, Russia)

1 p_andrey2003@mail.ru, 2 iadrin@mail.ru, 3 bliz_alex@mail.ru

One of the indicators of noise immunity of communication systems with pseudo-random tuning of the operating frequency should be considered the boundary value of the part of the frequency band covered by interference. If interference operates in a part of the band less than the limit value, the specified transmission is ensured regardless of the power of the interference, so it is necessary to evaluate this limit value.

The practical significance of the article lies in the fact that the results obtained during the simulation allow us to conclude that when moving from coherent to incoherent reception under the same conditions and large signal-to-noise rations, the boundary value of the part of the frequency band covered by interference decreases on average by 12%, which indicates expediency of implementing systems with pseudo-random tuning of the operating frequency close to coherent (quasi-coherent) of reception algorithms.

Pshenitsyn A.A., Zhironkin S.B., Bliznyuk A.A. Noise immunity of a radio data transmission channel white pseudo-random tuning of the operating frequency: the boundary value of the part of the band covered by interference. Achievements of modern radioelectronics. 2024. V. 78. № 3. P. 22–27. DOI: https://doi.org/10.18127/j20700784-202403-03 [in Russian]

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