IMWTS26 US th 0920

Introduction to Mine Countermeasures

Overview of Presentation

• The presentation begins with a dark title slide, setting the tone for discussing undersea infrastructure and mine countermeasures.

• The speaker reassures the audience that the focus is on mine countermeasures, which are currently in a state of hiatus in Australia. They humorously reference Monty Python to lighten the mood.

Current State of Mine Countermeasures

• There is a noted shift among companies from traditional mine countermeasure work to broader seabed effects due to current industry trends.

• The speaker reflects on their history and experience in maritime autonomy and unmanned systems, emphasizing changes in interest over time.

Development of Nautilus System

Introduction to Nautilus

• The Nautilus system represents a significant advancement in autonomous mine countermeasure technology, moving beyond theoretical concepts into practical applications.

• It includes both the overall system design and specific payload formats developed for effective operation.

PEZ Dispenser Concept

• A prototype PEZ dispenser for neutralizer payloads was recently tested, showcasing innovative delivery mechanisms for underwater operations.

• The concept draws inspiration from SpaceX's satellite deployment methods but adapts them for underwater use at much lower speeds (2 knots).

Autonomous Target Recognition (ATR) System

Importance of ATR

• A robust ATR system is essential for closing the loop on autonomous mine countermeasure operations; it relies heavily on synthetic data training techniques using advanced ray tracing technology.

• This ATR aims to achieve high accuracy without human intervention during operations, marking a shift towards fully autonomous systems.

Design Considerations for Payload Delivery

Payload Specifications

• The payload design focuses on carrying multiple units (up to 10), ensuring operational efficiency during missions where large quantities are required.

• Emphasis is placed on maintaining neutral buoyancy during transit to avoid affecting vehicle trim while maximizing operational range and speed in contested environments.

Safety and Cost Efficiency

• Neutralizers are designed to be safe and inexpensive compared to traditional explosive devices, addressing concerns about asymmetric warfare dynamics where low-cost solutions are critical.

Technical Features of Payload

Payload Functionality

• The payload has been designed as a disc or puck shape (40 cm diameter), incorporating features like acoustic surveillance capabilities alongside magnetic signature emulation functionalities.

• Auxiliary functions include tracking and decoy generation, enhancing versatility within mine warfare scenarios despite funding limitations faced by Australian defense initiatives.

Testing Procedures and Results

Prototype Testing Insights

• Recent tests conducted at HMAS Waterhen demonstrated predictable descent behavior of prototypes when deployed from an AUV platform, confirming design efficacy under controlled conditions.(928]

• Future tests will involve actual payload deployments with diver support planned to assess real-world performance against target accuracy requirements (2–3 meters).

Conclusion & Future Directions

Ongoing Developments

• Four contracts have funded this project through the Australian Navy; ongoing testing will continue at Jarvis Bay with plans for initial operating capability set for 2027.

• There’s potential interest in marketing this technology internationally once proven effective through rigorous testing protocols.