“Analysis of Sounding Signal With the Trapezoidal Frequency Intra-Modulation”. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, no. 49 (February 27, 2012): 66–70. Accessed April 19, 2025. https://radap.kpi.ua/radiotechnique/article/view/18.