Ponomareva О.В. and Ponomarev А.В. 2020. Envelope of a Real Discrete Signal on a Finite Interval and Methods for Its Determination. Intellekt. Sist. Proizv. 17, 4 (Jan. 2020), 116–122. DOI:https://doi.org/10.22213/2410-9304-2019-4-116-122.