The U.S. Army had a requirement for a Real-Time Wireless Sound Location, Classification and Scoring System to locate, count, and classify multiple, simultaneous, atmospheric and surface acoustic events produced by military ordnance during testing at volumetric impact fields. The Army possessed a similar system that made havy use of operator-based processing, but was seeking a replacement due to equipment obsolescence, cabling issues, outdated DOS-based software, and data collection limitations. The Army requirements included:
The system solution must detect, locate, count, and classify multiple acoustic events within the volumetric impact field. The system must locate both atmospheric and surface events in space, reported in XYZ coordinates. Expected conditions within the impact area require that the sensors be battery powered, portable, resistant to explosive shock, and operable in tropical, desert, arctic, and wind conditions. Data shall be collected over a period of 48 hours, transmitted wirelessly without fault or interference to a base station at a range of 20 km from the center of the impact area, processed in reference to coordinated universal time (UTC), and displayed in real-time on multiple remote monitors. Base station equipment must mount in standard 19” instrumentation racks and receive standard AC power within an environmentally controlled shelter. The system must collect realtime atmospheric conditions (temperature, humidity, wind speed, wind direction, and ambient pressure) within the volumetric impact field for processing corrections. All system components shall be verified via self diagnostic tests. The system is expected to utilize fast Ethernet networks, state of the art CPUs, a hardware controller raid apparatus, and a Microsoft Windows operating system. Software licenses and code, spare parts, documentation, training, and warranty shall be included at final delivery.
To satisfy these requirements Trident Research adapted its Tactical Acoustic Realtime Geolocation and Training (TARGTTM) system capability. The TARGTTM system is an underwater acoustic based real-time scoring system that has been field demonstrated in multiple USAF precision guided munitions tests for the 46th Test Wing and Eglin AFB. The TRACSTM system represents a revolutionary change to the field of air-based acoustic weapons scoring and provides the following capabilities:
Accuracy and Timing • Scoring of single ground or air-burst ordnance events to within +/- 1 meter (3D) • Scoring of simultaneous ground or air-burst ordnance events to within +/- 1 meter (3D) • Timing of single ground or air-burst ordnance events to within +/- 1 millisecond • Timing of simultaneous ground or air-burst ordnance events to within +/- 1 millisecond • Classification of ordnance events based upon acoustic signature characteristics • Realtime single ground or air-burst ordnance processing within 30 seconds • Realtime simultaneous ground or air-burst ordnance processing within 5 minutes
Utility • Supportable over a range of test volumes, up to a maximum of 1.6 x 6.4 km • Deployable in arctic, tropic, or desert testing environments • Realtime situational awareness, health and status monitoring of all system components • Minimal 2 person system set-up, currently <4 hrs for 15 sensor network • Minimal 1 person system operation • GPS self-surveying of networked sensors to within 3 cm • Full operation and recording for up to 48 hours of continuous operation • Operability in all weather conditions, including rain • Fully integrated meteorological subsystem for volumetric field weather measurements • Transportable and deployable from a single truck-based instrumentation shelter • Remote Command and Control System for capability demonstration to VIPs • Windows XP-based GUI interfaces for all data processing and analysis tools
Portability • Single person deployable (sensor weight < 40 lbs) • Wireless connectivity between all sensors and command and control systems • Transportable and deployable from a single truck-based instrumentation shelter • Two-person deployable Remote Command and Control (RCC) system (weight <70 lbs) • Sensor transportable for OCONUS fielding
The TRACSTM system was delivered to the US Army following formal acceptance testing in May of 2009.