Subsea Warden is a hovering AUV for acoustic and magnetic vessel-signature measurement. Cellula describes three vehicles measuring port, starboard and keel positions with navigation and relative-positioning control. DND reports earlier Cellula/Ocean Floor Geophysics AUV signature-ranging research, and the RCN’s 2025 outlook lists autonomous underwater ranging; neither proves acceptance of the current Warden configuration.
Technical detail
Core features
Magnetometer and passive acoustics are listed standard payloads; passive electromagnetic and environmental sensors are optional.
ROS over Ethernet connects sensors, computer and payloads; FOG INS and Nortek DVL support navigation and station keeping.
Vendor table: 100 m depth and 130 kg, with six-hour battery endurance; the overview’s eight-hour figure remains unresolved.
Autonomous Systems
Sensing Isr
Use & integration
Recorded applications
Vessel acoustic and magnetic signature measurement
Mobile underwater ranging trials
These describe the reviewed application scope, not confirmed deployments, released requirements or procurement eligibility.
Evidence of maturity
Historical buyer-reported ranging R&D and a 2025 naval innovation listing; current-product qualification and acceptance are not disclosed.
Commercial availability
Vendor-marketed configured system; sensor, geometry, endurance and data-acceptance requirements need agreement.
Integration and verification
Readiness
A technology readiness level is not established by the reviewed public sources.
Reviewed connections
No reviewed Mission area or released Defence need connection is currently published.
Original sources 3 linked records
These records support this capability and its published Mission area and Defence need connections. A source count is not a count of independent confirmations.
Subsea Warden is a hovering AUV for vessel acoustic and magnetic signature measurements. Vendor describes three vehicles measuring port,starboard and keel simultaneously and download after recovery.
Supports: Capability · defence applications
Subsea Warden is a hovering AUV for vessel acoustic and magnetic signature measurements. Vendor describes three vehicles measuring port,starboard and keel simultaneously and download after recovery.
Supports: Capability · capability type
Subsea Warden is a hovering AUV for vessel acoustic and magnetic signature measurements. Vendor describes three vehicles measuring port,starboard and keel simultaneously and download after recovery.
Supports: Capability · core features
Warden uses ROS over Ethernet between sensors, main computer and payloads. Standard payloads are magnetometer/passive acoustics, with optional passive EM/environment sensors; FOG INS and Nortek DVL support station keeping and relative positioning. The table gives 100 m depth, 130 kg and 6 h battery endurance, while the overview says 8 h.
Supports: Capability · core features
Warden uses ROS over Ethernet between sensors, main computer and payloads. Standard payloads are magnetometer/passive acoustics, with optional passive EM/environment sensors; FOG INS and Nortek DVL support station keeping and relative positioning. The table gives 100 m depth, 130 kg and 6 h battery endurance, while the overview says 8 h.
Supports: Capability · slug
Subsea Warden is a hovering AUV for vessel acoustic and magnetic signature measurements. Vendor describes three vehicles measuring port,starboard and keel simultaneously and download after recovery.
Supports: Capability · technology readiness level
Subsea Warden is a hovering AUV for vessel acoustic and magnetic signature measurements. Vendor describes three vehicles measuring port,starboard and keel simultaneously and download after recovery.
Supports: Capability · commercial availability
Subsea Warden is a hovering AUV for vessel acoustic and magnetic signature measurements. Vendor describes three vehicles measuring port,starboard and keel simultaneously and download after recovery.
Supports: Capability · defence applications
Subsea Warden is a hovering AUV for vessel acoustic and magnetic signature measurements. Vendor describes three vehicles measuring port,starboard and keel simultaneously and download after recovery.
Supports: Capability · core features
Warden uses ROS over Ethernet between sensors, main computer and payloads. Standard payloads are magnetometer/passive acoustics, with optional passive EM/environment sensors; FOG INS and Nortek DVL support station keeping and relative positioning. The table gives 100 m depth, 130 kg and 6 h battery endurance, while the overview says 8 h.
Supports: Capability · technicaldomainslugs
Subsea Warden is a hovering AUV for vessel acoustic and magnetic signature measurements. Vendor describes three vehicles measuring port,starboard and keel simultaneously and download after recovery.
Supports: Capability · technical tags
Subsea Warden is a hovering AUV for vessel acoustic and magnetic signature measurements. Vendor describes three vehicles measuring port,starboard and keel simultaneously and download after recovery.
Supports: Capability · name
Subsea Warden is a hovering AUV for vessel acoustic and magnetic signature measurements. Vendor describes three vehicles measuring port,starboard and keel simultaneously and download after recovery.
Supports: Capability · summary
Subsea Warden is a hovering AUV for vessel acoustic and magnetic signature measurements. Vendor describes three vehicles measuring port,starboard and keel simultaneously and download after recovery.
Supports: Capability · technical tags
Subsea Warden is a hovering AUV for vessel acoustic and magnetic signature measurements. Vendor describes three vehicles measuring port,starboard and keel simultaneously and download after recovery.
Supports: Capability · technicaldomainslugs
Subsea Warden is a hovering AUV for vessel acoustic and magnetic signature measurements. Vendor describes three vehicles measuring port,starboard and keel simultaneously and download after recovery.
DND journal describes NMTM work with OceanFloorGeophysics and Cellula on AUV magnetic/underwater-electric-potential vessel surveys, completedMarch2021 with furtherdevelopment contemplated. It does not name the current Warden configuration or operational acceptance.
Supports: Capability · summary
DND journal describes NMTM work with OceanFloorGeophysics and Cellula on AUV magnetic/underwater-electric-potential vessel surveys, completedMarch2021 with furtherdevelopment contemplated. It does not name the current Warden configuration or operational acceptance.
Public sources cited · Facts and assessments kept separate · Human review
