Omni-Spatial Interference Removal Integrated System (OSIRIS)

In support of achieving the Phase I objective, to identify and solidify a robust, comprehensive Space-Time-Adaptive-Processing (STAP) design geared for the target platform, Pareto Frontier has developed the Omni-Spatial-Interference-Removing-Integrated-System (OSIRIS) core algorithm that satisfies project constraints with high-efficiency and performance. The OSIRIS core developed is a product of extensive investigation and refinement during the Phase I effort to arrive at a solution that: a) is fully autonomous and adaptive which eliminates the need for expensive antenna calibration or any location information of the protected signals; b) able to suppress many more interfering sources than afforded by conventional antenna nulling; and c) is highly computationally efficient and crafted to fit comfortably within available FPGA resources on the target platform. The developed algorithm has been extensively characterized utilizing a precision sample-based simulation testbench completed during the project and exhibits performance far superior to conventional nulling techniques such as the Minimum Variance Distortionless Response algorithm. Additionally, the algorithm has been implemented in preliminary form on an applique configuration within a surrogate platform during the project and performance results have been validated using RF test signals in the lab. On the Phase II effort, Pareto Frontier proposes to develop and demonstrate an OSIRIS-enhanced target receiver prototype.