US Navy Naval Air Systems Command (NAVAIR)
NAVAIR’s mission is to provide full life-cycle support of naval aviation aircraft, weapons and systems operated by Sailors and Marines. This support includes research, design, development and systems engineering; acquisition; test and evaluation; training facilities and equipment; repair and modification; and in-service engineering and logistics support.
Distributed Synthetic Environment Correlation Assessment Architecture and Metrics
GameSim was awarded a Phase I, Phase I Option, and Phase II Small Business Innovation Research (SBIR) contract from the US Navy NAVAIR to research correlation testing of synthetic environments.
Automated Runtime Terrain Database Correlation Assessment
2015 I/ITSEC Paper No. 15218
October 26, 2015
Terrain Database Fit-For-Use Correlation Indicators
Proceedings of the 2015 IMAGE conference, Dayton OH, July 7-8 2015, IMAGE SOCIETY
July 7, 2015
Video of Phase I Prototype
As the Navy moves towards integrating flight simulators into common training environments, the importance of having a correlated, correct environmental representation is vital for achieving a fair fight and a high training value. Many of these simulators are operating off different versions of source data and different Image Generator (IG) vendors. GameSim research determined how these flight simulators can be tested to ensure their environments achieve appropriate correctness and correlation to achieve the training objective.
Instead of researching from the perspective of solely measuring miscorrelation in esoteric metrics, GameSim worked from the perspective of understanding how the Navy desires to use the combined simulators and create a solution to verify the synthetic environments of the connected simulators are fit for that usage. In fact, the research resulted in a terminology GameSim titled, Fit-for-Use. Fit-for-Use is a set of categories that the Navy can use to determine what training missions are appropriate for a set of input simulators and environment databases. The Fit-for-Use categories are mapped to required tests, thresholds, and results that can be maintained by Navy flight simulation Subject Matter Experts.
GameSim performed research to define all of the integrity and correlation issues faced by Navy flight simulator programs, with specific focus on the needs of ADVTE. Those issues and metrics are mapped to Fit-for-Use categories and customizable based upon a categorization of the area. For example, a region of the environment classified as an airfield may require a high level of feature correlation to be deemed fit for Confined Area Landing training. The result of this research is a detailed, prioritized list of conditions that the proposed system shall support. These tests range from terrain elevation correlation to IG sensor mode visualization matching.
With this list of requirements in place, GameSim designed an extendable, automated architecture that can support those requirements. An important aspect of the design was to support static data formats, such as the NAVAIR Portable Source Initiative (NPSI) and other common source data formats, as well as utilize network interfaces to access environmental information in IGs and Semi Automated Forces (SAF) systems. These network interfaces include the Common Image Generator Interface (CIGI) and High-Level Architecture (HLA). This allows for testing among any combination of IGs, SAFs, NPSI databases and source data formats. Additionally, the open architecture provides a means to add source data formats and systems.
Finally, GameSim proved out the architecture by creating a functional prototype, called Validate. Validate is integrated as a plugin into GameSim’s geospatial visualization product, Conform. The prototype was implemented to prove that (1) the architecture is sound, (2) the product has value to be the Navy, and (3) the system is extendable in terms of new data formats and tests.