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2006-08-28
Broadband Scattering Data Interpolation Based on a Relaxed Adaptive Feature Extraction Algorighm
By
Progress In Electromagnetics Research, Vol. 64, 99-116, 2006
Abstract
A method using a relaxed adaptive feature extraction algorithm is investigated to interpolate broadband, high-frequency scattering from sparse, undersampled data. First, the adaptive feature extraction is extended to include a frequency-dependent scattering center model in order to better-describe broadband scattering physics from a complex target per the geometrical theory of diffraction. Second, the parameterization of the model is relaxed for more accurate extractions and a sparser model representation using fewer samples. Comparative results are presented for the relaxed versus the non-relaxed adaptive feature extraction algorithm for hypothetical examples and a numerically-solved ogive body of revolution. The relaxed algorithm is more computationally expensive, but results in significantly improved performance. The technique enhances adaptive feature extraction performance for broadband interpolation.
Citation
Anna Raynal John Moore Hao Ling , "Broadband Scattering Data Interpolation Based on a Relaxed Adaptive Feature Extraction Algorighm," Progress In Electromagnetics Research, Vol. 64, 99-116, 2006.
doi:10.2528/PIER06052404
http://www.jpier.org/PIER/pier.php?paper=06052404
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