Research Article
Time-Frequency Feature Extraction of HRRP Using AGR and NMF for SAR ATR
Table 2
Confusion matrix for 10-target classification (6° aperture).
| | Test targets | Recognized as | Recognition rate (%) | | BMP2 | BRDM2 | BTR60 | BTR70 | D7 | T62 | T72 | ZIL131 | ZSU234 | 2S1 |
| | BMP2 | 177 | 1 | 3 | 1 | 0 | 5 | 6 | 0 | 1 | 1 | 90.76 | | BRDM2 | 2 | 267 | 1 | 2 | 0 | 1 | 0 | 1 | 0 | 0 | 97.45 | | BTR60 | 1 | 2 | 179 | 6 | 1 | 0 | 0 | 3 | 2 | 1 | 91.79 | | BTR70 | 1 | 1 | 8 | 180 | 0 | 2 | 0 | 1 | 0 | 3 | 91.84 | | D7 | 0 | 1 | 0 | 0 | 271 | 1 | 0 | 0 | 0 | 1 | 98.91 | | T62 | 1 | 3 | 3 | 2 | 1 | 258 | 3 | 0 | 2 | 0 | 94.51 | | T72 | 1 | 0 | 1 | 1 | 0 | 2 | 189 | 1 | 0 | 1 | 96.43 | | ZIL131 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 269 | 1 | 1 | 98.18 | | ZSU234 | 1 | 0 | 1 | 2 | 0 | 0 | 0 | 1 | 268 | 1 | 97.81 | | 2S1 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 270 | 98.54 |
| | Average recognition rate (%) | 95.62 |
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