K.V. Kondratiev1, I.V. Kochan2, A.G. Khantimirov3, A.A. Barkhatova4

1-3 Siberian Federal University (Krasnoyarsk, Russia)

4 JSC “Information satellite systems named after academician M.F. Reshetnev” (Krasnoyarsk, Russia)

Formulation of the problem. The problem of suppression of reverberation interference of low-frequency signals is considered. Promising methods for suppressing the effect of a positive feedback loop have been identified.

Goal. Development of a filtering method and algorithms based on the principle of preliminary calculation of the correction signal. Development of a hardware filtering model for low-frequency signals in real time.

Results. The simulation results are obtained, which allow calculating the correction signal and compensating it without negative impact on the original signal within the given limits. It is determined that with a transient response dynamically changing in time, it is possible to automatically adjust the filter at the time of the absence of a signal.

Practical significance. Algorithmic and software-hardware support has been developed in the form of software libraries and embedded hardware modules for systems and complexes for processing signals in the audio range, which makes it possible to compensate for acoustic feedback.

Kondratiev K.V., Kochan I.V., Khantimirov A.G., Barkhatova A.A. A reverb suppression method. Radiotekhnika. 2022. V. 86. № 12.
P. 105−110. DOI: https://doi.org/10.18127/j00338486-202212-09 (In Russian)

1. Pochepcov G.G. Teorija kommunikacii. M.: «Refl–buk», K.: «Vakler». 2001. 656 s. (In Russian).
2. Jingkui Shi, Wenxin Huang, Xinxin Zheng. Complete decoupling compensation of three-phase inverter with LCL filter in synchronous reference frame. IET Power Electronics. 2021.
3. Ravve E.V., Volkovich Z. A multi-criteria approach to optimization of acoustic feedback detection. Applied Acoustics. 2021. V. 184. Р. 1-9.
4. Jian Chen, Zhi-Ji Wang, Bao-Hua Zhu, Eun Seong Kim. Fabrication of QFN-Packaged Miniaturized GaAs-Based Bandpass Filter with Intertwined Inductors and Dendritic Capacitor. Materials (MDPI AG). 2020. V. 13. Is. 8. Р. 1932.
5. Ignatov P.V., Aldoshina I.A. Upravlenie zvukovym polem v teatral'no-koncertnyh zalah. Muzykovedenie. 2020. № 6. S. 37-41 (In Russian).
6. Torgushin I.V. Cifrovye fil'try s konechnoj impul'snoj harakteristikoj. Molodoj uchenyj. 2021. № 19(361). S. 28-30 (In Russian).
7. Lamanov Ju.A., Kudrjavceva T.O., Drobotun N.B. Razrabotka i issledovanie mikropoloskovogo fil'tra nizkih chastot s vysokoj krutiznoj spada AChH. Doklady TUSUR. 2021. T. 24. № 2. S. 7–13 (In Russian).
8. Nepomnjashhij O.V. Metod ocenki resursov v processe funkcional'no-potokovogo, vysokourovnevogo sinteza SBIS. Prikladnaja informatika. 2022. T. 17. № 3. S. 95–105 (In Russian).
9. Ryzhenko I.N., Nepomnjashhij O.V. Metod vysokourovnevogo sinteza i programmnyj instrumentarij dlja opisanija algoritmov funkcionirovanija SBIS. Programmnaja inzhenerija. 2020. T. 11. № 1. S. 35-39 (In Russian).
10. Nepomnjashhij O.V., Sazonov I.E., Jablonskij A.P., Hajdukova V.N. Povyshajushhe-ponizhajushhij reversivnyj impul'snyj preobrazovatel' s vysokim KPD. Uspehi sovremennoj radiojelektroniki. 2021. T. 75. № 8. S. 43-51 (In Russian).
11. Goncharov S.V., Nepomnjashhij O.V., Seredkin V.G., Postnikov A.I., Hantimirov A.G. Strukturnyj metod umen'shenija sluchajnoj sostavljajushhej pogreshnosti komponentov ACP. Uspehi sovremennoj radiojelektroniki. 2019. № 1. S. 56-62.
12. Matjushkov A.L, Zhuk I.N. Algoritm kompensacii sluchajnoj nachal'noj fazy i/ili otstrojki chastoty v sistemah svjazi s kvadraturnoj moduljaciej. Doklady BGUIR. 2022. T. 20. № 3. S. 36-44 (In Russian).
13. Panchenko V.S. Model' cifrovogo fil'tra s fazovrashhatelem v srede MATLAB. Molodoj uchenyj. 2020. № 41(331). S. 19-22 (In Russian).