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Simplified Topside Design and Assessment Tool
Navy SBIR 2010.1 - Topic N101-051 NAVSEA - Mr. Dean Putnam - [email protected] Opens: December 10, 2009 - Closes: January 13, 2010 N101-051 TITLE: Simplified Topside Design and Assessment Tool TECHNOLOGY AREAS: Ground/Sea Vehicles, Sensors ACQUISITION PROGRAM: PMS 502, CGX Program RESTRICTION ON PERFORMANCE BY FOREIGN CITIZENS (i.e., those holding non-U.S. Passports): This topic is "ITAR Restricted." The information and materials provided pursuant to or resulting from this topic are restricted under the International Traffic in Arms Regulations (ITAR), 22 CFR Parts 120 - 130, which control the export of defense-related material and services, including the export of sensitive technical data. Foreign Citizens may perform work under an award resulting from this topic only if they hold the "Permanent Resident Card", or are designated as "Protected Individuals" as defined by 8 U.S.C. 1324b(a)(3). If a proposal for this topic contains participation by a foreign citizen who is not in one of the above two categories, the proposal will be rejected. OBJECTIVE: Develop a simplified analysis and budgeting tool that provides an approximate assessment of total ship radar cross section based on component level scattering data. DESCRIPTION: The range at which Navy surface ships can be detected and targeted by adversary radar and missiles is dependent on the ship�s radar cross section (RCS). Current modeling and simulation tools used by the Navy such as Ray Tracing Signature (RTS) are based on physical optics and theoretical diffraction software that require a detailed three dimensional model of the ship external geometry and topside mounted equipment and systems. This approach provides accurate predictions, however it is viewed as being time intensive (several months) to develop the models and then run the analysis. There is a need for a simplified, approximate analysis method that can be used during preliminary ship design phases that allows for rapid assessment of multiple design considerations and tradeoff studies. This topic seeks to develop an advanced, innovative approach that provides an analysis tool capable of incorporating component-level scattering information, geometric blockage considerations and other primary signature drivers to aide in the development of an approximate signature prediction and detailed signature budget. A key challenge is going to be the ability to identify and define the key parameters that influence ship RCS and define an analytical and software approach for incorporating those parameters into a user-friendly modeling & simulation tool for signature analysis and budgeting. The goal is to have accurate and reliable assessments within weeks or days vice months and for solutions within 25% of a more exact RTS solution. Proposed concepts should have a user-friendly graphical user interface and must be capable of addressing signature prediction and budgeting corresponding to ship topside and combat system components as well as common hull, mechanical and electrical (HM&E) items. Representative and relational data will be provided for this project during Phase II. The references below provide a generic description of RCS and it�s applicability to ships (Ref 1) as well as approximate RCS values for various ships (Ref. 2 and 3) . All information provided and generated as a result of this effort will be unclassified. PHASE I: Demonstrate the feasibility of an innovative approach for assessing total ship radar cross-section based on component level scattering. Establish performance goals of the approach and software tool. Provide a Phase II development approach and schedule that contains discrete milestones for product development.. PHASE II: Develop, demonstrate and fabricate a prototype as identified in Phase I. In a laboratory environment, demonstrate that the prototype meets the performance goals established in Phase I. Perform documented, detailed verification and validation studies to assess the accuracy, speed, and repeatability of predicted electromagnetic behavior Develop a cost benefit analysis and a Phase III installation, testing, and validation plan. PHASE III: Working with government and industry, complete development to include necessary user interfaces and instruction manuals. Work with Government subject matter experts to validate accuracy and limitations. Continue to conduct validation testing as appropriate. PRIVATE SECTOR COMMERCIAL POTENTIAL/DUAL-USE APPLICATIONS: This product will be useable and useful across the DoD components by government, commercial industry partners and civilian contractors. REFERENCES: 2. Frigate LaFayette: The French Revolution in Ship Design, ASNE Symposium 1995 3. Williams/Cramp/Curts, "Experimental Study of the Radar Cross Section of Maritime Targets", Electronic Circuits and Systems, Volume 2, No 4, July 1978 4. Knott, E.F., Shaeffer, J.F., Tuley, M.T., Radar Cross Section, SciTech Publishing, 2003. KEYWORDS: Radar Cross Section; Signature Prediction; Ships; Modeling & Simulation; Susceptibility
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