MAGIC (TM) Filter Anti-Jamming Capability for RT-1944/U Radio
Navy SBIR FY2013.1

Sol No.: Navy SBIR FY2013.1
Topic No.: N131-029
Topic Title: MAGIC (TM) Filter Anti-Jamming Capability for RT-1944/U Radio
Proposal No.: N131-029-0464
Firm: Adaptive Dynamics, Inc
15373 Innovation Dr. #115
San Diego, California 92128-3424
Contact: Brandon Zeidler
Phone: (858) 598-4234
Web Site:
Abstract: Adaptive Dynamics, Inc. (ADI) has developed the MAGIC(TM) (Multiple Adaptive Generalized Interference Cancellation) Filter, a revolutionary interference mitigation technology that offers these specific advantages: * It has demonstrated successful mitigation of multiple interference types (continuous wave (CW), swept tone, random FM, frequency hopped, etc.) to J/S levels typically exceeding 30dB in narrowband applications, and 60 dB in wideband applications. * The core algorithm is very well developed, and is currently being applied to both narrowband (5/25 KHz UHF MILSATCOM) and wideband (GPS, MUOS WCDMA, L-band FHSS) signals. * It is entirely a digital signal processing solution intended to function with a single antenna. * Its computing requirements are readily achieved with commodity COTS components suitable for the SWaP constraints defined for the MVCS. * It can be readily deployed as a low-cost retrofit applique between the antenna and the radio, by adapting an Anti-Jam filter module developed for similar requirements (currently at TRL 6+). In the proposed effort, ADI will perform detailed physical layer simulations and hardware tests to support the design and implementation of the MAGIC (TM) Filter for protecting the Harris SeaLancet(TM) RT-1944/U radio as a retrofit applique. The Phase I project will conclude with a live demonstration using a COTS hardware Wi-Fi testbed.
Benefits: Electromagnetic Interference is a pervasive problem for both military and commercial communications systems. In the commercial arena, the rapid proliferation of WiFi hotspots in the unlicensed bands has been particularly problematic in densely populated areas. The limited number of channels and lack of coordination among hot spots can pose a serious challenge for providing reliable throughput, and dramatically degrade the attainable throughput for users on the same or adjacent channels. Since certain modes of the SeaLancet(TM) radio are heavily based on commercial standards, such as 802.11a/g, the retrofit applique developed for this system could be readily adapted to enhance the capacity and reliability of commercial WiFi systems. It is envisioned that the capability provided by the MAGIC(TM) filter to separate multiple signals on the same channel could create a significant impact in the commercial market, by enhancing the achievable data rates and increasing the overall capacity of each site. This would be particularly advantageous in densely populated areas where unused channels are scarce, and the distance separating "hot spots" on the same channel is very small.