Table 2.
Performance obtained with the considered methods for a cube containing 4 sources with a 20 dB SNR.
| d | criterion | MC-NMF | SpaceCorr | SC-NMF-Spec | SC-NMF-Map | MASS | MASS-NMF-Spec | MASS-NMF-Map |
|---|---|---|---|---|---|---|---|---|
| 6σMap | NRMSE | 15.59 % | 3.05 % | 16.52 % |  |
3.58 % | 16.60 % | 3.30 % |
| SAM (rad) | 0.077 | 0.019 | 0.089 |  |
0.030 | 0.090 | 0.018 | |
| NMCEBmax | 13.65 % | – | 0.69 % | 2.58e–3 % | – | 0.70 % | 4.92e–3 % | |
| 2σMap | NRMSE | 18.25 % | 20.59 % | 11.76 % | 11.67 % | 10.37 % | 12.82 % |  |
| SAM (rad) | 0.084 | 0.145 | 0.061 | 0.082 | 0.077 | 0.057 |  |
|
| NMCEBmax | 22.25 % | – | 1.51 % | 8.93e–2 % | – | 1.24 % | 0.72 % | |
Notes. Results in bold identify the cases when hybrid methods improve performance, as compared with the MC-NMF, SpaceCorr or MASS methods used alone. The underlined results identify the best results obtained for each of the two cubes respectively corresponding to d = 6σMap and d = 2σMap.
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