00722naa#a2200181#i#450# EN\\bibl\71483 20240520103532.1 2072-9502 20231109b2023####ek#y0engy0150####ca RU Reducing the calculation time of the sectional convolution operation by taking into account the practical performance of the fast Fourier transform Journal article Astrakhan Astrakhan State Technical University 2023 6 с. Journal article local Специальные приемы программирования. 519.683.8 Al'tman Evgeniy Anatol'evich Aleksandrov Aleksandr Vladimirovich vestnik.astu.org