Table 1 Comparison of time delay estimates obtained using CC and the proposed technique based on OC algorithm
From: Sub-sampling-based 2D localization of an impulsive acoustic source in reverberant environments
| Â | Frequency | True TD | TDE CC | Run time | TDE OC | Run time |
|---|---|---|---|---|---|---|
| Â | (kHz) | (ms) | (ms) | CC (s) | (ms) | OC (s) |
Case I | 16 | 2.941 | 2.875 | 66 | 2.875 | 70 |
| Â | 8 | 2.941 | 3.125 | 17 | 2.875 | 7 |
| Â | 4 | 2.941 | 2.250 | 4.5 | 3.312 | 3.5 |
Case II | 16 | 1.218 | 1.250 | 66 | 1.250 | 70 |
| Â | 8 | 1.218 | 0.875 | 17 | 1.312 | 7 |
| Â | 4 | 1.218 | 1.000 | 4.5 | 1.250 | 3.5 |
Case III | 16 | 0.000 | 0.000 | 66 | 0.000 | 70 |
| Â | 8 | 0.000 | 0.250 | 17 | 0.000 | 7 |
| Â | 4 | 0.000 | 0.750 | 4.5 | 0.187 | 3.5 |