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发表刊物：IEEE Transactions on Instrumentation and Measurement

摘要：This paper addresses the interpolation issue of current spectral estimation methods in Microwave-based non-destructive testing and evaluation (NDT&E).  We developed a spatial-frequency feature extraction algorithm for defect detection with an open-ended waveguide system using Smooth Itakura-Saito Nonnegative Matrix Factorization (S-ISNMF).  In addition, the mathematical models of spatial-frequency characteristics for both defects and non-defects areas are derived. The newly developed algorithm has two prominent characteristics which benefits the detection system.

全部作者：Bin Gao, Hong Zhang, W.L. Woo, Gui Yun Tian, Libing Bai, Aijun Yin

学科门类：工学

卷号：63

期号：4

页面范围：923 – 934

是否译文：否

发表时间：2014-03-06