Spatial Reference Model Requirements
Completeness:
- Include coordinate frameworks in common usage
- Tie those systems together into a common framework
- Educate the system developer (e.g., What’s a horizontal datum? A vertical datum?)
Accuracy:
- Generally higher than required for C4ISR systems
- Typically better than 1 cm up past geo-synchronous orbit
Performance:
- Computation speed - Never fast enough!
- Support environmental data sets dominated by location data
- Reduce costs for simulation using heterogeneous coordinate systems (spatial reference frames)