Круглик, О. С., О.Я. Калюжний, and В. Ю. Семенов. “Efficient QPSK Signal Demodulation in Channels With Unfavorable Conditions of Radio Reception”. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, no. 78 (September 30, 2019): 13-18. Accessed February 28, 2024. https://radap.kpi.ua/radiotechnique/article/view/1588.