Software Cost and Schedule Estimating

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00178-01-C-3049
Agency Tracking Number: N011-0194
Amount: $69,727.00
Phase: Phase I
Program: SBIR
Awards Year: 2001
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
11400 West Olympic Blvd., Suite 300, Los Angeles, CA, 90064
DUNS: 053885604
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Menachem Levitas
 Chief Scientist Wash. Ops
 (301) 565-2770
Business Contact
 James Miller
Title: Chief Financial Officer
Phone: (301) 565-2970
Research Institution
Atmospheric refractivity conditions have significant influence over radio frequency (RF) propagation in the Earth's troposphere. Refractivity conditions can vary from sub-refraction to strong-trapping, thereby altering radar detection, measurement, andclutter performance across its coverage volume. Current Navy radar systems operate without regard to changing refractivity conditions, mainly because quantitative descriptions of such conditions have not been generally available to operational systems andcould not be converted to their propagation performance equivalent in near-real-time. Recent advances in the areas of refractivity estimation from basic parameter measurements and from clutter measurements, coupled with improvements in the processingefficiency of Parabolic-Equation-based propagation models, can narrow that gap. This proposal identifies applications for ship-based radars, such as the AN/SPY-1 family, whose performance could be enhanced through judicious utilization of refractivityinformation. It describes architecture and techniques to combine information from linear, high-resolution, clutter-maps, with information from propagation-coverage-maps, to improve radar performance in detection, tracking, engagement, and resourceconservation, and to further extend the utilization of such information to improve radar sensor fusion and combat system performance. Specific techniques to be analyzed in detail during the Phase I base-period in order to establish their feasibility aredescribed - each with its corresponding technical approach.This research and development effort could lead to clear understanding of shipboard sensor applications whose performance could be enhanced via judicious use of combined propagation and clutterinformation, and of the processing architecture and processing algorithms required to support such improvements. It could be used to enhance the performance of new fleet sensors and combat systems via appropriate design, and of legacy systems throughupgrades. A proposed software analysis package, which will contain pertinent architectural elements, will be marketed to potential radar and radar upgrade developers, in support of specific algorithm developments.

* information listed above is at the time of submission.

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