KEYWORDS: Databases, Sensors, Data modeling, Weapons, Image classification, Volume rendering, 3D modeling, Photography, Image processing, Hardware in the loop testing
Realistic backgrounds are necessary to support high fidelity hardware-in-the-loop testing. Advanced avionics and weapon system sensors are driving the requirement for higher resolution imagery. The model-test-model philosophy being promoted by the T&E community is resulting in the need for backgrounds that are realistic or virtual representations of actual test areas. Combined, these requirements led to a major upgrade of the terrain database used for hardware-in-the-loop testing at the Guided Weapons Evaluation Facility (GWEF) at Eglin Air Force Base, Florida. This paper will describe the process used to generate the high-resolution (1-foot) database of ten sites totaling over 20 square kilometers of the Eglin range. this process involved generating digital elevation maps from stereo aerial imagery and classifying ground cover material using the spectral content. These databases were then optimized for real-time operation at 90 Hz.
The Air Force Development Test Center's (AFDTC) Guided Weapons Evaluation Facility (GWEF), is designed to test guided munitions performance using Hardware-In-the-Loop simulations. Evaluation of imaging infrared guided munitions requires the generation and projection of complex infrared (IR) `fly-in' scenes to the unit under test which is mounted to a flight motion simulator. Members of AFDTC's 46 Test Wing and Avionics Systems Command's Wright Labs have teamed to develop and integrate this capability within the GWEF and Wright Lab's Kinetic Kill Hardware-In-the-Loop Simulation (KHILS) facility. The major Hardware-In-the-Loop (HIL) components for the GWEF include an IR scene generator, an IR projector, a five axis flight motion simulator (FMS), a 6 degree of freedom missile flight simulation, and the opto- mechanical interface to mount the projector onto the 5 axis FMS. GWEF's unique HIL solution is utilizing the 512 X 512 resistor array technology developed by KHILS, and off- the-shelf state-of-the-art scene generation computer, FMS, and optics. Details on this in-house development effort include acquisition and configuration/integration issues, thermal information to radiance bandpass output validation, IR scene generation and frame latency, generated IR scene input to projected output calibration, and simulation guidance from launch to impact verification. This capability has been successfully integrated into the GWEF, meeting a March 1996 HIL test.
Conference Committee Involvement (8)
Technologies for Synthetic Environments: Hardware-in-the-Loop Testing XV
7 April 2010 | Orlando, Florida, United States
Technologies for Synthetic Environments: Hardware-in-the-Loop Testing XIV
13 April 2009 | Orlando, Florida, United States
Technologies for Synthetic Environments: Hardware-in-the-Loop Testing XIII
17 March 2008 | Orlando, Florida, United States
Technologies for Synthetic Environments: Hardware-in-the-Loop Testing XII
10 April 2007 | Orlando, Florida, United States
Technologies for Synthetic Environments: Hardware-in-the-Loop Testing XI
18 April 2006 | Orlando (Kissimmee), Florida, United States
Technologies for Synthetic Environments: Hardware-in-the-Loop Testing X
29 March 2005 | Orlando, Florida, United States
Technologies for Synthetic Environments: Hardware-in-the-Loop Testing IX
13 April 2004 | Orlando, Florida, United States
Technologies for Synthetic Environments: Hardware-in-the-Loop Testing VIII
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