Table 4
Minimum sizes of the dirty beam images to get an image fidelity or a dynamic range greater than a given value.
| Minimum fidelity | θalias/θfwhma | ||
| or dynamic range | (fb = 0)b | (fb = 0.0625) | (fb = 0.1) |
|
|
|||
| 102 | 2.2 | 2.2 | 2.2 |
| 103 | 3.5 | 3.7 | 6.6 |
| 104 | 8.4 | 13.4 | 13.7 |
| 105 | 19.8 | > 20.0 | > 20.0 |
Notes.
The computation is done for 3 different ratios of the secondary-to-primary diameters (i.e. fb, the antenna blockage factors). The values are derived from the modeling of the antenna power patterns shown in Fig. 3.
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