Command and Control for Multifunction Phased Array Radar

Abstract

Abstract-We discuss the challenge of managing the Multifunction Phased Array Radar (MPAR) timeline to satisfy the requirements of its multiple missions, with particular focus on weather surveillance. This command and control (C2) function partitions the available scan time amongst these missions, exploits opportunities to service multiple missions simultaneously and utilizes techniques for increasing scan rate where feasible. After reviewing candidate MPAR architectures and relevant previous research, we describe a specific C2 framework that is consistent with a demonstrated active array architecture using overlapped sub-arrays to realize multiple, concurrent receive beams. Analysis of recently articulated requirements for nearairport and national scale aircraft surveillance indicate that, with this architecture, 40-60% of the MPAR scan timeline would be available for the high-fidelity weather observations currently provided by the Weather Service Radar (WSR-88D) network. We show that appropriate use of sub-array generated concurrent receive beams, in concert with previously documented, complementary techniques to increase the weather scan rate, could enable MPAR to perform full weather volume scans at a rate of 1 per minute. Published observing system simulation experiments, human-in-the-loop studies and radar-data assimilation experiments indicate that 2 high-quality weather radar observations at this rate may significantly improve the lead time and reliability of severe weather warnings relative to current observation capabilities.

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