Maritime Monitoring and Grey-Zone Activity Detection
Defense Maritime Domain Awareness SWIRSAT

Maritime Monitoring and Grey-Zone Activity Detection

Naval ISR for littoral, coastal, and congested sea lanes — closing detection gaps left by AIS-disabled vessels, persistent haze, and rapidly fading wakes.

Mission Type
Maritime Domain Awareness
Capability
Naval ISR
Spectrum
SWIR
Theatre
Littoral · Coastal · Sea Lanes
Product
SWIRSAT
Operational Snapshot

Where visible-light sensors lose contact

Grey-zone maritime operations exploit AIS gaps, fading wakes, and haze degradation. SWIR closes those gaps by reading materials, not just light.

Three blind spots in visible-spectrum maritime ISR

Wakes dissipate fast, AIS goes silent, and haze degrades imagery — leaving commanders without confident attribution or intent assessment in the most contested waters.

01
Ship wakes fade fast

Wakes dissipate into background noise once a vessel slows, manoeuvres, or exits the area — limiting confidence in detection and behavioural analysis.

02
Haze and sea mist degrade optical imagery

Grey-zone activity often takes place in marine humidity and aerosols where visible-spectrum detection is compromised.

03
AIS goes silent on dark vessels

AIS-disabled, spoofed, or intermittent transmitters defeat cooperative identification; RF SIGINT and SAR indicate presence but lack surface-level confirmation.

SAR and RF detect presence — SWIR confirms behaviour

SWIR fuses with SAR and RF SIGINT to provide visual and behavioural confirmation, closing critical gaps in non-cooperative maritime monitoring.

01
Persistent wake signatures

SWIR highlights wake patterns long after they fade from visible imagery, supporting loitering detection and intent assessment.

02
Penetrates haze and marine aerosols

Short-Wave Infrared sensing operates through coastal humidity and sea mist, preserving detection when visible bands fail.

03
Hull material vs sea surface contrast

Material reflectance differences distinguish vessel hulls from background clutter, enabling earlier detection of low-profile, non-cooperative vessels.

From presence to behaviour

SWIR strengthens the fusion of RF, SAR, and surface intelligence — turning fragmentary detections into confident attribution.

Wakes
Persistent wake detection

Track vessel movement and behaviour after the wake has visually dissipated — supporting loitering detection and intent assessment.

Dark Vessels
Detection without AIS

Confirm presence and intent for vessels with AIS disabled, spoofed, or intermittent — closing gaps in non-cooperative maritime monitoring.

All-weather
Through haze & sea mist

SWIR penetrates marine aerosols and humidity, preserving maritime ISR continuity in conditions that defeat visible sensors.

Products Used

Powered by SWIRSAT

Persistent maritime ISR via SWIR — fused with SAR and RF SIGINT for confident attribution of grey-zone activity.

Very High Resolution SWIR, Low Earth Orbit LC60 AI will construct a Low Earth Orbit satellite in Australia to gather high-resolution data on carbon emissions. The satellite is slated to launch from India in December 2026. This project received grant funding from the Australian Government. Technical Specifications Why SWIRSAT? The SWIRSAT Mission aims to significantly […]

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Add SWIR to your maritime ISR stack

Contact us to learn how SWIRSAT-derived intelligence can support your maritime domain awareness and grey-zone detection objectives.

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