Multistage Antenna-Array based Adaptive Signal Processing (MAASP) for Wideband Systems

Mayflower’s MAASP (Multistage Antenna Array based Adaptive Signal Processing) proposal aspires to research and develop an adaptive signal processing approach to counteract jammers in wideband systems. The proposal builds on Mayflower’s proven expertise in adaptive signal processing and antenna arrays. Interference from unintentional sources and hostile jammers can disrupt mission-critical military surveillance systems. Traditional interference mitigation measures cannot cope with the characteristically diverse interferers in wideband antenna arrays. Jammers could both be narrowband and wideband and could have different statistical and spatial characteristics. Mayflower’s proposal directly addresses the wide variety of possible jammers and the complexity associated with wideband systems. Mayflower’s approach is suitable for both narrowband and wideband jammers, with a variety of signal statistics. Mayflower’s implementation provides a straightforward way to reduce computational burden by reducing the processing rank and avoiding expensive operations such as matrix inversions and eigen decompositions. The Phase I feasibility study will demonstrate that the Mayflower approach meets the Air Force objectives of antijam performance in wideband systems. In the Phase II program, we will build a high-speed FPGA-based prototype that achieves low computational complexity and high performance, and demonstrate its functionality in a test bed designated by the Air Force.