Table 2 Original and estimated parameters in both simulation test and real data test
From: Feature extraction of SAR scattering centers using M-RANSAC and STFRFT-based algorithm
Type | Scattering center | R 0 [m] | η 0 [s] | V r [m/s] | \(\boldsymbol {\hat R_{0}}\)[m] | \(\boldsymbol {\hat \eta _{0}}\)[s] | \(\boldsymbol {\hat V_{r}}\) [m/s] |
|---|---|---|---|---|---|---|---|
Simulation | T1 | 7500 | 0.8717 | 153.3 | 7500.7 | 0.8703 | 153.56 |
| Â | T2 | 7462.5 | 0.8717 | 147.8 | 7462.2 | 0.8721 | 146.62 |
| Â | T3 | 7537.5 | 0.8717 | 153.3 | 7538.7 | 0.8719 | 153.48 |
Real data | T1 | 997743 | 1.3143 | 7062.4 | 997744.3 | 1.3127 | 7062.9 |
| Â | T2 | 997226 | 1.4202 | 7061.8 | 997226.8 | 1.4212 | 7061.9 |
| Â | T3 | 997375 | 1.7073 | 7061.7 | 997374.1 | 1.7097 | 7061.2 |
| Â | T4 | 997582 | 1.8665 | 7062.2 | 997582.5 | 1.8670 | 7061.7 |