Table 1 \(T_{r}\) for different moving targets (X-band)
| Moving target | Doppler velocity \({\varvec{v}}\) | \({\varvec{T}}_{{\varvec{r}}}\) |
|---|---|---|
| Ship | 25 m/s (50 knots) | ≅ 20 μs |
| Land vehicle | 70 m/s (250 km/h) | ≅ 7 μs |
| Civil aircraft | 250 m/s (900 km/h) | ≅ 2 μs |
| Military aircraft | 1000 m/s (Mach 3) | ≅ 0.5 μs |