SRM Requirements
Completeness
- Must include coordinate frameworks in common usage.
- Must tie those systems together into a common framework.
- Must 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 geosynchronous orbit.
Performance
- Never fast enough!
- Many environmental data sets dominated by location data
- Therefore efficient interconversion key to meeting 72 hour “ready-to-run” mandate.
- Federate costs for distributed simulation using heterogeneous coordinate systems can be substantial (e.g., 20% or more).