NCCOSC RDTE Division, Code D214B, 53570 Silvergate Avenue, Bldg. A33, San Diego, CA 92152-5113

70 -- ALGORITHMS SOFTWARE DEVELOPMENT SOL N66001-97-Q-4253 DUE 111996 POC POC Ms. Irene Solis, Code D221, Purchasing Agent, (619)524-2081. Ms. C. Lewis, Contracting Officer. ADVANCED RESEARCH ON SAR AUTOFOCUS ALGORITHMS AND TECHNIQUES: 1.0 OBJECTIVE--The objective of this effort is to analyze and compare space-invariant autofocus algorithms in terms of parallel computation efficiency. 2.0 SCOPE--The scope of this effort is to build up a library of SAR autofocus algorithms in Matlab. Technology developed will support building an integrated computational environment for high performance systems by providing advanced computational software tools based on this technology that demonstrates the ability to achieve improved performance on current HPC computers. 3.0 BACKGROUND--An essential part of future surveillance systems is airborne synthetic-aperture radar (SAR). SAR is all weather, covers a large area, and can be used to detect surface targets. Two critical problems with SAR are the image formation and the automatic target detection and recognition processing. Both require a large number of computations. Today's SAR sensors produce gigabytes of raw data that have to be processed by special purpose image-formation electronics. These real-time processors are inflexible so that algorithm enhancements cannot be easily incorporated. In contrast, testbeds using general-purpose commercial computers are flexible, but run too slowly to process a significant amount of data. High-performance computers offer the possibility of implementing SAR algorithms in real-time as well as maintaining the flexibility to evaluate algorithm enhancements. Scalable code for massively parallel computing architectures would allow the code to be run on the available number of nodes during testbed evaluation tests. For real-time processing, the number of nodes can be increased to achieve real-time speed. 4. TASKS/TECHNICAL REQUIREMENTS--The contractor shall accomplish the following: 4.1 The contractor shall provide software tools for autofocus in Matlab. 4.1.1 The contractor should build up the library by providing the following key space-invariant SAR autofocus algorithms: Mapdrift--Multiple subaperture mapdrift--Phase difference--Phase-gradient autofocus--Prominent point processing--Cubic spline approximation of phase error. 4.1.2 The contractor shall identify portability of autofocus algorithms to the high performance computer environment and/or to the general workstation cluster environment. 4.2 Reporting. 4.2.1 Deliver Software Algorithms in Matlab. 4.2.2 Final Technical Report--The contractor shall document all technical work accomplished and information gained during the performance of this acquisition. This shall include all pertinent observations, nature of problems, positive as well as negative results, and design criteria established, where applicable; also, procedures followed, processes developed, ''Lessons Learned'', etc. The details of all technical work shall be documented to permit full understanding of the techniques and procedures used in evolving technology or processes developed. Separate design, engineering, or process specifications delivered during this acquisition shall be cross referenced to permit a full understanding of the total acquisition. 5.0 GOVERNMENT-FURNISHED PROPERTY/MATERIAL/INFORMATION--The Government will provide all necessary documentation and other technical data required for performance under this contract and deemed necessary by the Contracting Officer. The government may elect to provide computer workstation and Matlab algorithm development software and related applications as government furnished materials. All GFE shall remain the property of the Government and shall be returned to the Government upon completion of the contract. 6.0 TRAVEL--Four, one person, three day trips between Los Angeles, CA and San Diego, CA. The contractor may be asked to attend meetings at additional locations. Local travel is required between contractor's facility and NRaD for accomplishment of technical activities and performance of tasks. Travel/per diem costs shall be in accordance with Joint Travel Regulations (JTR). 7.0 OTHER. 7.1 Place of Performance. Work shall be performed at the contractor's facilities in San Diego and Los Angeles, CA. The contractor shall have access to necessary NCCOSC RDT&E DIV facilities for performance of work. 7.2 Inspection and Acceptance. Ultimate inspection and acceptance authority is Rome Laboratory (AFMC), Rome, NY, Mr. Stanley Lis, Program Manager, telephone (315) 330-3275. Mr. C. R. Yerkes, NCCOSC, RDT&E Division (NRaD) Code 855, San Diego, CA, (619) 553-5355, has initial inspection and acceptance responsibility. The performance of the contractor and the quality of the work delivered, including any documentary materials written or compiled, shall be subject to in-process reviews and inspections. Inspections may be accomplished at any work location, and authorized Government personnel shall be permitted to observe the work and to conduct inspections at reasonable hours. 7.3 Security. This work is unclassified. See Numbered notes from any Monday edition of the CBD. The applicable Standard Industrial Code and size standard is 7371 - $18.0. No RFQ will be prepared or made available for distribution. Award will be based on evaluation of responsive, responsible quotations received in response to this CBD advertisement. Competitive awards may be based on the evaluation criteria stipulated in NRaD Blue Ribbon Vendor Program (BRVP) provisions or the Red, Yellow, Green (RYG) Contractor Evaluation System. The evaluation criteria is available upon request. Questions may be directed to Irene Solis at (619) 524-2081. Facsimile quotations are acceptable and must be received on or before the COB on the closing date stated above. Facsimile quotations may be sent to (619)524-2440, 2465, or 3407. See Note(s): 1. (0305)

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