Mitigation of Collision Avoidance Radar System Interference From Unlicensed National Information Infrastructure (U-NII) Devices
Navy SBIR FY2014.2


Sol No.: Navy SBIR FY2014.2
Topic No.: N142-106
Topic Title: Mitigation of Collision Avoidance Radar System Interference From Unlicensed National Information Infrastructure (U-NII) Devices
Proposal No.: N142-106-0346
Firm: RDRTec Inc.
3737 Atwell St.
Suite 208
Dallas, Texas 75209
Contact: Sidney Theis
Phone: (214) 353-8755
Abstract: Collision Avoidance (CA) radar systems are required for compliance with the Navy's operational requirement for Sense And Avoid (SAA) for Unmanned Aerial Systems (UASs). The Radar Airborne Collision Avoidance System (RACAS) is designed to provide CA capabilities for both Triton and Fire Scout. RACAS total operating frequency extends from 5100 to 5900 MHz with its primary SAA frequency from 5350 to 5470 MHz. Unlicensed-National Information Infrastructure (U-NII) also operate in this frequency band as secondary users and as such are required to vacate the frequency whenever a radar is detected. There have been numerous incidences where ground based radars have been adversely impacted. This study analyzes the impact of UNIIs on RACAS, develops mitigation techiques, and shows the feasibility of those techniques.
Benefits: The anticipated benefit is to enable a less expensive more robust C-Band collision avoidance radar for implementation in both Triton and Fire Scout.

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