P. Sankara Rao. Performance Analysis of Diffraction Gain (Gd) Due to Presence of single and Multiple Knife-Edge as Compared to Free Space E- Field and Identifying the Position of Obstacle in a Fresnel Zone. NPER-V6 [Internet]. 2022 Jan. 24 [cited 2026 Jun. 24];:64-7. Available from: https://stm.bookpi.org/NPER-V6/article/view/5501