Dahlgren Division, Naval Surface Warfare Center, 17320 Dahlgren Road, Dahlgren, VA 22448-5100

A -- ANALYSIS MODELING AND COMPUTER SIMULATION FOR GPS ONLY GUIDANCE SYSTEM CONCEPT SOL N00178-00-Q-1032 (SYNOPSIS/SOLICITATION) DUE 033100 POC Ronald K. White, Contract Specialist or G. R. Vaughan, Contracting Officer on (540) 653-7478 WEB: NSWCDD Dahlgren Laboratory Procurement Division Homepage, http://www.nswc.navy.mil/supply. E-MAIL: Questions concerning Synopsis/Solicitation N00178-00-Q-1032, whiterk@nswc.navy.mil or sd11@nswc.navy.mil. The Naval Surface Warfare Center, Dahlgren Division (NSWCDD) intends to enter into a firm-fixed price purchase order on a sole-source basis with Mayflower Communications Company, Inc. of Billerica, MA for analysis modeling and computer simulation of Mayflower's proprietary GPS-only guidance system concept. Mayflower Communications Company, Inc. developed the proprietary GPS-only guidance system concept in response to a Navy requirement to lower the cost of GPS/IMU systems for projectile guidance. The Navy is developing alternate low-cost weapon navigation and guidance concepts that are reliable and affordable for a large class of weapon systems including both ballistic and glide projectiles. The traditional guidance system concepts for developmental projectiles are based on an integrated GPS/INS system. While this approach is robust and addresses the GPS vulnerability issue, the cost of the GPS/INS guidance systems is high and for some projectiles more than 50 percent of the cost of the projectile. Mayflower's sole-source task is the following: The objective is to demonstrate the initial feasibility of the GPS-only guidance approach. The contractor shall develop a GPS-only guidance algorithm for a stable non-spinning projectile with dynamic characteristics similar to ERGM. The guidance control algorithm may use accelerometer measurements in the feedback control loop. Two sources of roll attitude information may be used in the development of the algorithm: (1) roll estimated in the Extended Kalman Filter and (2) roll estimated directly from multiple antennas using interferometric processing of carrier phase. The performance penalty associated with the first approach will be analyzed and evaluated. The output of this task shall be a technical report documenting the algorithm and initial indication of performance of the guidance control algorithm in a simulation environment. The technical report shall be delivered within three months after award of a purchase order and shall be delivered FOB Destination to: Naval Surface Warfare Center, Dahlgren Division, Attn: Receiving Officer/Bldg. 125, 17320 Dahlgren Road, Dahlgren, VA 22448-5100. Standard Industrial Classification code is 8711, $2.5 million annual receipts. The closing date for receipt of quotes is 2:00 PM, Eastern Time, on 31 March 2000. Quoters should reference quote number N00178-00-Q-1032 and may provide quotes as follows: via fax to (540) 653-7088, Attn: Ronald K. White/SD11E, email at whiterk@nswc.navy.mil, or delivered to Naval Surface Warfare Center, Dahlgren Division, Attn: Ronald K. White/SD11E, Bldg. 183, Room 102, 17320 Dahlgren Road, Dahlgren, VA 22448-5100. This procurement is being issued under Simplified Acquisition Procedures as a combined synopsis/solicitation. The Naval Surface Warfare Center, Dahlgren Division, Dahlgren Laboratory Procurement Division has implemented Electronic commerce (EC) in the acquisition arena; therefore, this synopsis/solicitation with any applicable amendments will be available on the World Wide Web at http://www.nswc.navy.mil/supply. Hard copies WILL NOT be provided. Vendors should regularly access the NSWCDD Web site to ensure that they have downloaded all amendments. Anticipated award date is 07 April 2000. In order to be eligible for award firms must be registered in the Central Contractor Registry (CCR). Quoters may obtain information on registration in the CCR by calling 1-888-227-2423, or via the Internet at http://www.ccr2000.com. Please note that defense payment offices may not make payment unless the contractor is established to receive electronic funds transfer (EFT). EFT payments are based on the contractor's EFT information contained in the CCR database. Posted 03/23/00 (W-SN437536). (0083)

Loren Data Corp. http://www.ld.com (SYN# 0003 20000327\A-0003.SOL)