SUBJECT: Enhanced Tactical Radar Correlator (ETRAC)

1. Purpose. Highlight ETRAC's capabilities and capacity as a technology test bed for TES development risk reduction.

2. Facts.

        a. Background ETRAC's mission is to provide Army field commanders with accurate, reliable and timely imagery-based battlefield intelligence derived from the all-weather, high resolution, Advanced Synthetic Aperture Radar System-2 (ASARS-2) carried aboard the Air Force's U-2 aircraft. It is capable of disseminating intelligence data to the All Source Analysis System (ASAS) via area communications networks and exchange data with other intelligence, surveillance and reconnaissance (ISR) ground stations. ETRAC is inter-operable with all of the other services' intelligence architectures. Imagery intelligence is disseminated to supported units in the form of annotated imagery (SIDS), text reports/messages (IPIRs), or voice reports. ETRAC is composed of state-of-the-art commercial processors, a wide band common data link (CDL), exploitation work stations and a robust communications capability, all, packaged into a tactical 31 foot van. ETRAC is designed for rapid deployment; to move with the Corps or JTF.

        b. Major Milestones. The ETRACs functions and capabilities as a test bed have been demonstrated in the field. Because the ETRAC is mostly COTS hardware and software, with an open computer network architecture and industry standard inter-faces, it can be efficiently upgraded to perform new functions or networked with other systems. This flexibility makes ETRAC a prime system for prototyping and testing new technologies and concepts for TES. This year, ETRAC I has participated in 6 exercises/tests interfacing with or demonstrating 9 new capabilities and has operated in support of each service. In March, while at Edwards AFB, the ETRAC received down linked ASARS imagery from a U-2R, and later, an SR-7 1. ETRAC operators re-tasked the sensor on the U-2, in real time, in response to changes in the collection requirements. The ETRAC processed the data to provide complex imagery to the Semi Automated IMINT Processing (SAIP) Advanced Concepts Technology Demonstration (ACTD) for advanced Aided Target Recognition (ATR) research. Other down linked data was passed to Guardrail for non-imagery analysis. Exploited imagery products were disseminated over classified LAN (SIPRNET) to: the Corps ACE during TASK FORCE XXI, the Pacific Fleet during a PACOM JTFX, and the Marines during HUNTER WARRIOR. IMINT derived data was disseminated over the TF-BS broadcast network.

         c. Current Status. The Army's two ETRACs are fielded to the XVIII Airborne Corps at Fort Bragg (ETRAC 1) and the V Corps in Germany (ETRAC 2). The V Corps' ETRAC has been deployed to Tazar, Hungrary since May 96 in support of operation Joint Endeavor. ETRAC 1, at Fort Bragg, serves as the poor man's operational test bed. Future down link sources include Global Hawk, Dark Star, U-2 S YERS, U-2 AIP and F- 1 8 ATARS.