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The ultra‐wideband characteristic basis function method (UCBFM) is known as an effective technique for analyzing the wideband scattering problems, where the ultra‐wideband characteristic basis functions (UCBFs) can be reused for any sampling frequency in the range of interest. However, these UCBFs need to be constructed via an external excitation source, and the number of UCBFs is generally large...
When improved ultra-wide band characteristic basis function method (IUCBFM) is used to calculate wideband radar cross section (RCS) of objects, the reduced matrix at each frequency point need to be reconstructed, which is very time-consuming. To solve this problem, an effective numerical method to fast calculate wideband RCS of objects by combining IUCBFM and asymptotic waveform evaluation (AWE) technique...
An efficient numerical approach is presented to analyze the wide-band electromagnetic scattering characteristics using the general characteristic basis function method (GCBFM) with the model-based parameter estimation (MBPE). The general characteristic basis functions (GCBFs) are derived from the primary characteristic basis functions and the secondary level characteristic basis functions by applying...
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