Purpose Best Practices | OGC
2 © 2015 Open Geospatial Consortium
For devices such as Radars, a geometric representation of a model may often provide a level of fidelity which is insufficient or inappropriate for use in simulation or alternately, it may not be
feasible to compute a radar cross-section RCS of the model in real-time. Alternately, a user may wish to incorporate real-world RCS data into the simulator client-devices in order to further
improve simulation fidelity. To this end, the CDB Specification defines a RCS Radar Cross- Section model representation for use by Sensor Simulation client-devices such as Radar andor
Sonar. Chapter 7, CDB Radar Cross Section RCS Models establishes a set of conventions that permit RCS representations using the Shapefile format.
The CDB Specification relies heavily on five established industry formats, namely the TIFF format Appendix B, the OpenFlight format Appendix C, the RGB format Appendix P, the
Shapefile format Appendix D and the JPEG 2000 file format Appendix T. These Specifications have been included as appendices to this Specification. Each of these documents
has been annotated to reflect the conventions established by the CDB Specification. The conventions define how TIFF, OpenFlight, RGB, Shapefile and JPEG 2000 formatted files are to
be interpreted by CDB-compliant simulator readers.
Appendices E and F provide the CDB light type naming hierarchy and the CDB model component hierarchies respectively while Appendix L provides the material list for the CDB
Specification.
Other Appendices further describes other aspects of the CDB Specifications like providing the CDB Directory Naming and Structure Appendix M, the mapping of FACC Codes Appendix
N, the List of Texture Component Selectors Appendix O, the SGI Image File Format Appendix P, the Table of Dataset Codes Appendix Q or how some datasets are derived from
others Appendix R.