E-field Magnetic Acoustic Fusion Sonobuoy

To address the Navy’s need for a multi-sensor sonobuoy for Anti-Submarine Warfare (ASW) operations, Physical Optics Corporation (POC) proposes to develop a new E-field Magnetic Acoustic Fusion Sonobuoy (EMAFS). It is based on a new A-size sonobuoy design that harnesses miniaturized electric field, magnetic field, and acoustic sensors. Specifically, the innovation in combining these three sensors with modern sensor fusion algorithms will enable the system to detect modern, low acoustic profile submarines at greater distances and sensitivities. As a result, this system offers a minimum of 3-dB acoustic signal strength in comparison to existing sonobuoys, which directly addresses the PMA264 requirements for a sonobuoy with greater range than existing models while simultaneously offering extended operational and storage life. In Phase I, POC will demonstrate the feasibility of EMAFS by incorporating miniaturized sensors and Systems-on-Chip (SoCs) with sensor fusion algorithms, demonstrating feasibility in a benchtop environment and reaching technology readiness level (TRL)-4. In Phase II, POC plans to deliver designs, prototyping plans, and costing for a finalized EMAFS buoy and develop five fully functional prototypes for demonstration with the Navy in an ASW operations scenario, reaching TRL-6.