Research Article
Improved Resolution and Reduced Clutter in Ultra-Wideband Microwave Imaging Using Cross-Correlated Back Projection: Experimental and Numerical Results
Table 2
SCR and FWHM from experiments with different number of antennas.
| | # Of ant | Delay-and-sum | Triple cross-correlation | | | | Sequential | Interlaced | | SCR (dB) | (mm) | (mm) | SCR (dB) | (mm) | (mm) | SCR (dB) | (mm) | (mm) |
| | 4 | 14.4 | 10.8 | 3.6 | 26.0 | 4.1 | 1.5 | — | — | — | | 8 | 17.3 | 7.1 | 2.8 | 28.5 | 3.8 | 1.9 | 32.0 | 3.9 | 1.3 | | 16 | 19.2 | 7.4 | 2.9 | 27.5 | 4.0 | 2.3 | 29.5 | 3.5 | 1.7 | | 24 | 22.0 | 6.9 | 2.7 | 25.3 | 4.4 | 2.4 | 32.2 | 3.4 | 1.7 |
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