EP-3E ARIES II JSAF Block Modernization Program (JMOD)
The second major EP-3 modernization effort is the Joint Signals Intelligence Avionics Family (JSAF) Block Modernization Program (JMOD). The JSAF program builds on SSIP connectivity to provide the EP-3E with an open-architecture, state-of-the-art collection and dissemination system capable of exploiting threat emissions beyond the year 2020. An EP-3E acted as the Department of Defense prototype for the high-band subsystem of the Joint SIGINT Avionics Family - a European Command EP-3E served as the Department of Defense prototype for the high-band subsystem of the Joint SIGINT Avionics Family. The JSAF program will provide the EP-3E with an open-architecture, state-of-the-art collection system capable of exploiting threat emissions through the year 2010. The Joint Airborne Signal Intelligence Architecture Modification (JMOD) program implemented a new architecture to meet a Joint Airborne Signal Intelligence Architecture (JASA) requirement levied on all airborne reconnaissance platforms. The architecture provides the EP-3E with the JASA infrastructure so as improved sensors are developed they are easily integrated into the system. JMOD also integrates more commercial-off-the-shelf hardware and software, and a new JASA sensor into the EP-3E. This modification supports the EP-3Es expanding role in the integrated battlefield.
The J-MOD upgrade includes the low-band (and potentially the high-band) subsystem plus infrastructure improvements and upgrades to the Story-series subsystems:
- Story Maker -- onboard sensor fusion
- Story Teller -- communications/data link upgrades
- Story Book -- special collection (pro forma) upgrades
- Story Finder -- electronic support measures
- Story Classic -- special signals
- Story Scanner -- optics collection and processing
Three JMOD block modifications are planned to keep the EP-3E ahead of the projected threat. JMOD Block 1 includes improved on-board data handling and processing. JMOD Block 2 adds a low band subsystem and improves data fusion capability including Common Data Link, which provides crucial connectivity for network centric warfare. JMOD Block 3 adds a precision targeting system. The portion of the JMOD program occurring within the Future Years Defense Plan (FY 2001-2006) is fully funded. JSAF commenced limited production in FY 2001, with one aircraft per year through FY 2002, and thereafter at a rate of two aircraft per year until completion in FY 2007.
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