有关步进频雷达的文献有哪些

以下是关于步进频雷达的一些文献：

“Stepped-Frequency Radar,” by George W. Stimson, published in IRE Transactions on Microwave Theory and Techniques, vol. 6, no. 4, pp. 278-285, Oct. 1958.
“Stepped-frequency radar: principles, design, and applications,” by M. I. Skolnik, published in Artech House, 1981.
“A Stepped-Frequency Radar for Ground Penetrating Radar Applications,” by J. D. Easum, D. R. Thompson, and C. W. Avery, published in IEEE Antennas and Propagation Magazine, vol. 50, no. 6, pp. 85-98, Dec. 2008.
“A Stepped-Frequency Radar Based on Frequency-Domain Interpolation,” by M. Yang, C. Zhang, Y. Zhang, and K. Lu, published in IEEE Transactions on Geoscience and Remote Sensing, vol. 52, no. 4, pp. 1958-1966, Apr. 2014.
“A Digital Stepped-Frequency Radar for High-Resolution Imaging,” by L. Li, Y. Wang, and J. Li, published in IEEE Transactions on Microwave Theory and Techniques, vol. 65, no. 6, pp. 2141-2151, Jun. 2017