Research Article
Efficient Computation of Wideband RCS Using Singular Value Decomposition Enhanced Improved Ultrawideband Characteristic Basis Function Method
Table 1
Number of PWs and IUCBFs and computational time of the sphere.
| | IUCBFM | SVD-IUCBFM |
| Frequency subband (GHz) | 0.2–0.65 | 0.65–1.1 | 1.1–2.0 | 0.2–0.65 | 0.65–1.1 | 1.1–2.0 | Number of PWs | 128 | 128 | 128 | 23 | 33 | 54 | SVD time (s) | 9.55 | 9.03 | 8.25 | 5.61 | 6.09 | 8.29 | Number of IUCBFs | 344 | 551 | 809 | 316 | 517 | 706 | IUCBFs construction time (s) | 216.54 | 213.27 | 207.21 | 98.94 | 111.94 | 152.79 | Reduced matrix filling (s) | 108.27 | 279.17 | 564.01 | 87.56 | 207.21 | 418.26 | Total time (s) | 2135.25 | 4159.47 | 7016.52 | 1919.54 | 3336.54 | 5365.49 |
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