Research Article
Combination of MLFMA and ACA to Accelerate Computation of Scattering from Underground Targets
Table 3
Computational parameters of bistatic RCS from a ball under the rough surface.
| | | | MoM-MLFMA | MoM-MLFMA-AC0A | Memory for nondiagonal block matrices | Number of iterations | Iteration time (s) | Memory for nondiagonal block matrices | Number of iterations | Iteration time (s) |
| 2.0 | 100 | 7200 | 309.4 MB | 375 | 51 | 125 MB | 374 | 30 | 4.0 | 100 | 7200 | 309.4 MB | 670 | 168 | 221 MB | 668 | 104 | 2.0 | 300 | 22480 | 3.39 GB | 274 | 307 | 536 MB | 273 | 191 | 4.0 | 300 | 22480 | 3.39 GB | 573 | 985 | 1.67 GB | 573 | 699 |
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