Miniature Precision Anti-Jam (MPAS) for Space Constrained Precison Approach and Landing Platforms

Small Navy platforms will require technology to meet the operational availability and accuracy requirements for upcoming systems. Beamforming/null steering algorithms have been developed for antenna installations on ships and fixed wing aircraft where navigational accuracy is achieved at the expense of greater complexity and cost in the antenna electronics. Most of the current systems use"nulling"techniques that steer antenna nulls toward the interfering signals by adapting antenna weights. Studies suggest that these techniques introduce error into the GPS solution that may be unacceptable for precision approach and landing. The objective of this SBIR program is to develop advanced non beam-steering adaptive weighting algorithms that mitigate potential code and carrier phase bias errors introduced by Controlled Reception Pattern Antenna (CRPA) nulling algorithms. Mayflower"s proposed Miniature Precision Anti-Jam Solution (MPAS) will focus on non rotary-wing extremely space-constrained platforms. The Mayflower MPAS will leverage the NavGuard 100 Anti-Jam SAASM receiver technology enhanced with innovative advanced adaptive weighting algorithms that mitigate antenna induced phase biases. In Phase I of this SBIR, Mayflower will prove the feasibility of an advanced adaptive weighting algorithm through simulation and analysis. In Phase II, our plan will implement an enhanced AJ solution to demonstrate the ability to mitigate GPS carrier phase and pseudo-range biases. Under Phase III, Mayflower will develop form-fit AJ electronics for transitioning the technology to current and future naval platforms focused on small unmanned aerial systems (UAS).