RAdar Disruption Systems

In reviewing concepts for mechanical Radar Disruptive System countermeasures, we applied our many years of passive countermeasures experience, the results of recent non-SBIR funding of over $2M for design and development of passive radar targets, and empirical data from our testing of easily deployable, low-cost mechanical objects that create passive radar signatures and countermeasures for disruption, deception, and denial. Together, our background and recent program accomplishments provide the foundation for our proposed baseline design for this Direct to Phase II Program for the development and delivery of Mechanical Radar Disruptive System prototypes for operational field testing, upon completion of Phase II with a rapid transition to full deployment in Phase III, In developing the proposed baseline Radar Disruptive System design, we reviewed innovative approaches for threat responsive dipoles and corner reflector systems that could achieve the operational objectives. Given the desired operational band coverage of 18 GHz to 2.3 GHz and the low RCS of dipoles, our proposed corner reflector-based design proved to be superior to a dipole-based design. The background response vs. frequency response from asphalt, plowed fields, grass field and urban backgrounds dBSM/msq are consistent for required performance of the proposed 15cm randomly dithering triangular corner reflectors. The principal objectives of this fast moving, 12-month Phase II development program are: 1) to collect the detailed system requirements for the Radar Disruptive System, 2) update system trades to define the optimal system architecture for maximum performance, against a variety of simulated SAR radar systems, both side looking and spot mode, and 3) proceed directly to detailed mechanical design, which will conclude with a full drawing package and production of multiple prototypes. The final countermeasure system test configuration for performance verification will include at least 12 Radar Disruptive unit prototypes to form a complete radar disruptive system response.á These will be tested against a SAR radar to verify countermeasure performance.á If modifications are necessary, the design will be updated and readied for Phase III production. Following the completion of Phase II field testing, we will transition directly to Phase III production and deployment.