Evaluation of the Multifunction Phased Array Radar Planning Process (2008) / Chapter Skim
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PRINCIPAL FINDINGS Phased array technology offers significant technical advantages for a next generation of weather and aircraft surveillance radars. A national implementation of approximately 350 MPAR radars could replace existing NWS and FAA radars and offer many performance advantages.
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The aging of our existing domestic radar networks for weather and aircraft surveillance will require substantial commitments of federal resources to either maintain or replace them. Finding 4: A preliminary cost evaluation shows that one MPAR network designed to meet multiple national needs can be developed, implemented, and maintained at a lower cost, on a life-cycle basis, than would be required to sustain the existing conventional radar networks through required maintenance and incremental upgrades.
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Recommendation 2: The FCMSSR should consider organizational options to foster collaborative and joint R&D on the MPAR risk reduction activities by establishing a joint entity, such as a Joint National Center for advanced Radar Research and Development, to manage agencies' contributions to the risk reduction program outlined in this report. Recommendation 3: For the period prior to standup of a joint management entity, the FCMSSR should direct OFCM to form an interagency MPAR Working Group (WG/MPAR)
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Recommendation: The WG-MPAR planning process for the MPAR R&D program should implement frequent updating and improvement of the MPAR program plan to ensure planning robustness and relevance in the face of changing external conditions. As part of this WG-MPAR planning process, the program plan should be periodically evaluated against program goals and objectives, to ensure that these are both fully satisfied and remain relevant, and also the accomplishments of the R&D work.
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To ensure robustness of the R&D Program in the face of potential re-balancing of stakeholder needs and participation over time, the MPAR planning process for nonweather surveillance should further emphasize the need to fully establish requirements of all participating agencies. Recommendation: MPAR system design studies and analysis of alternatives should consider the MPAR system as a candidate member of a family of systems, carefully considering design and mission tradeoffs with existing and new surveillance capabilities under development.
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Recommendation: Given the high demand for bandwidth at the proposed S-band frequency, the MPAR R&D program must determine the total required bandwidth as early as possible in the research program to ensure the feasibility of the design. Specific Recommendations on the Costs and Cost-Benefit Considerations Recommendation: A thorough and complete cost analysis of the total MPAR program should be performed and compared with historical life-cycle costs for the more recently and currently deployed systems such as ARSR-4 and ASR-11 that are roughly equal in performance to MPAR for air-traffic surveillance, and for NEXRAD and TDWR radars that provide a performance baseline versus MPAR for weather surveillance.
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