C. F. Hu, N. J. Li, and C. H. Fang. 2020. “Application of Spectral Extrapolation Technique to Stepped-Frequency RCS Measurement”. The Applied Computational Electromagnetics Society Journal (ACES) 35 (9):999-1005. https://journals.riverpublishers.com/index.php/ACES/article/view/7711.