Commander, Naval Air Warfare Center Weapons Division, Code 250000D, 1 Administration Circle, China Lake, CA 93555-6001

58 -- GLOBAL POSITIONING SYSTEM SATELLITE SIMULATOR SOL N68936-96-R-0173 DUE 051796 POC James McCormick, Contract Specialist, Code 230000D, (619) 939-7953 or John Davidson, Contracting Officer, Code 230000D, (619) 939-7408. The Naval Air Warfare Center Weapons Divison, China Lake, CA intends to enter into negotiations on an other-than-full-and-open competition basis with Interstate Electronics Corporation, 1001 East Ball Road, Anaheim, CA 93117 for a Global Positioning System (GPS) Satellite Simulator system capbable of simulating any of 12 satellites currently in use and planned for use in the GPS constellation. The system shall provide: (1) a Microsoft Windows based graphical user interface; (2) 24 fully independent RF channels, each channel individually software selectable and programmable and capable of generating L1 C/A, L1P, L1Y, L2P, and L2Y code; (3) A ten millisecond or less, data latency through the simulator for real-time, closed-loop simulations, i.e., ten milliseconds or less after commanding any change, change detectable on the RF output; (4) An ethernet interface for real-time, closed-loop simulation; (5) Capability of generating encrypted P code (Y code) with full National Security Agency (NSA) approved Selective Availability, Anti-Spoofing (SA/AS) capability using Auxiliary Output Chips (AOCs) and an NSA approved Precise Positioning Service Security Module (PPS-SM); (6) Source code for all software run on all processors on the system, which shall be supplied for Government use and modification; software ownership to be nontransferable, subject to a non-disclosure agreement and not subject to ongoing license fees; (7) Differential GPS capability, allowing flexibility to choose any combination of satellites in number, frequency, and code, with appropriate RF generated for each combination selected, expandable to include WAAS transmissions and data formats; (8) Inertial Navigation System (INS) aiding of GPS receivers, supplying generic inertial models of accelerometers and gyros whose parameters can be modified to reflect specific inertial sensors; (9) Six Degrees of Freedom (6-DOF) motion generator capable of generating positions, velocity, acceleration, and jerk commands to the simulator; (10) Terrain masking utilizing Defense Mapping Agency (DMA) Digital Terrain Elevation Database (DTED) data, which will be used in determining obscuration of the GPS signals as seen by the receiver; (11) Ability to model captive carry of weapons on aircraft, meaning the antenna(s) of the receiver must be masked by the aircraft until separation; (12) Capability of generating GPS jamming, to include effects of at least twenty ground based GPS jammers. A SECRET facility clearance is required. Responses to this intent to solicit, other than from Interstate Electronics Corporation, should be submitted no later than 30 days from the date of this synopsis and should address specific knowledge of and experience with the above system. See Numbered Note(s): 22. (0095)

Loren Data Corp. http://www.ld.com (SYN# 0207 19960405\58-0001.SOL)