Table 4 Comparative table of different fundamental approaches able to represent and learn gravity fields of three-dimensional bodies.
From: Geodesy of irregular small bodies via neural density fields
Approach | ||||
|---|---|---|---|---|
Masc. | Harm. | Poly. | geodesyNets | |
Differentiable | ✗ | ✓ | ✓ | ✓ |
Inside Brillouin sphere | ✓ | ✗ | ✓ | ✓ |
Heterogeneous densities | ✓ | ✓ | ✗ * | ✓ |
Shape model not needed | ✓ | ✓ | ✗ | ✓ |
Can utilize shape model | ✓ | ✗ | ✓ | ✓ |
Accurate in the near field | ✗ | ✓ | ✓ | ✓ |
