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Электротехника и энергетика1970 / с. 54 https://www.ester.ee/record=b1379483*est Об измерении малых разностей частот на фоне шумовKorsen, Viljo; Pikkov, Otto; Järvalt, Aldur-EduardТруды по электротехнике и автоматике : сборник статей. 121974 / с. 79-86 : илл https://www.ester.ee/record=b2190668*est https://digikogu.taltech.ee/et/Item/57b94a1f-6879-4443-b6f2-322fd7e53d89 Об оценке частоты синусоидального сигнала на фоне белого шумаKangur, OlegТруды по электротехнике и автоматике : сборник статей. 101972 / с. 97-104 : илл https://www.ester.ee/record=b2190520*est https://digikogu.taltech.ee/et/Item/49449c41-8f8a-4846-93fd-8f149889ec73 Определение рабочей частоты электромагнитного расходомера широкого диапазона проводимости измеряемой жидкостиToomet, MadisIX Таллинское совещание по электромагнитным расходомерам : тезисы докладов1982 / с. 66 https://www.ester.ee/record=b1309155*est Оптимальный синтез устройства для оценки частоты сигнала при последовательном анализеHeinrichsen, Vladimir; Kangur, Oleg; Matverk, P.; Podolskaja, G.Труды по электротехнике и автоматике : сборник статей. 101972 / с. 111-119 : илл https://www.ester.ee/record=b2190520*est https://digikogu.taltech.ee/et/Item/49449c41-8f8a-4846-93fd-8f149889ec73 Оценка частоты сигнала при последовательном анализеHeinrichsen, Vladimir; Kangur, Oleg; Matverk, P.; Podolskaja, G.Труды по электротехнике и автоматике : сборник статей. 101972 / с. 105-110 : илл https://www.ester.ee/record=b2190520*est https://digikogu.taltech.ee/et/Item/49449c41-8f8a-4846-93fd-8f149889ec73 Расчет коэффициентов ряда Фурье для выходного напряжения преобразователя частоты со звеном повышенной частотыГришкян Ф.В.; Рыбицкий Л.С.Тезисы докладов семинара "Новые разновидности электропривода и возможности их применения"1990 / с. 60-63: ил Расчет на ЭЦВМ частотных характеристик клапанов давления типа Г 52-2. 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Радиоэлектроника : Ежемесячный научно-технический журнал1982 / с. 45-51 Способ измерения малых разностей частот. Авторское свидетельство № 359606Korsen, Viljo; Pikkov, Otto; Järvalt, AldurОткрытия, изобретения, промышленные образцы, товарные знаки : официальный бюллетень Комитета по делам изобретений и открытий при Совете Министров СССР1973 / с. [?] https://www.ester.ee/record=b2319409*est https://patentdb.ru/patent/359606 Стабилизация мощности высокочастотного лампового генератораTarma, MatiТруды по электротехнике и автоматике : сборник статей. 51967 / с. 67-77 : илл https://www.ester.ee/record=b2182187*est https://digikogu.taltech.ee/et/Item/a4d66fdf-69d6-487a-a6ee-1ffce266f2ad Структурно-корреляционные алгоритмы оценки частоты : (депонированная статья)Kangur, OlegТруды по радиотехнике : сборник статей. 11974 / с. 17-18 https://www.ester.ee/record=b2190658*est https://digikogu.taltech.ee/et/Item/5cef14c6-ad1c-48d0-970c-a5748f195738 Частотные характеристики : таблицы, номограммы1971 https://www.ester.ee/record=b1369879*est Четырехполосные модели элементов гидравлических трасс гидроприводов для расчета частотных характеристикGrossschmidt, GunnarНеустановившееся движение жидкости в трубах1980 / с. 41-50 : илл https://www.ester.ee/record=b1263941*est https://digikogu.taltech.ee/et/Item/aeac2da9-cb51-4746-9dc3-c435104586eb