Passive Acoustic Situational Awareness for Critical Maritime Infrastructure

Supporting discreet underwater monitoring for governmental and public security environments.

Maritime authorities, port administrations, and governmental infrastructure operators face increasing requirements for underwater situational awareness — particularly around critical coastal and harbor facilities.

HydroVision SeaStar24 supports underwater security monitoring through passive acoustic imaging. The system enables the spatial localization and visualization of underwater acoustic activity without transmitting acoustic signals.

This emission-free approach allows discreet monitoring in sensitive maritime environments.

Monitoring Beneath the Surface

Security strategies for ports and coastal infrastructure traditionally focus on surface and airspace surveillance. However, underwater environments remain complex and less visible.

SeaStar24 supports enhanced subsea awareness in contexts such as:

  • Port and harbor perimeters
  • Coastal security zones
  • Government-operated maritime facilities
  • Critical infrastructure near shorelines
  • Publicly regulated maritime environments

The system visualizes acoustic activity in 2D and 3D, assisting operators in identifying and assessing underwater events.

Passive Acoustic Imaging for Discreet Monitoring

Unlike active sonar systems, SeaStar24 operates entirely passively.

The system:

  • Does not emit acoustic pulses
  • Does not introduce additional underwater noise
  • Maintains a low acoustic footprint
  • Supports environmentally responsible monitoring

This makes passive acoustic imaging particularly suitable for regulated coastal areas and public-sector environments.

Application Contexts

Harbor & Port Security

SeaStar24 may support:

  • Monitoring of underwater zones near docks and terminals
  • Localization of unusual subsea acoustic activity
  • Awareness of vessel-related underwater interaction
  • Support for coordinated surface and subsea monitoring strategies

Capabilities depend on configuration and environmental conditions.

Coastal Infrastructure Protection

For governmental agencies responsible for coastal installations, passive acoustic imaging may assist in:

  • Observing activity near underwater structures
  • Monitoring areas adjacent to maritime infrastructure
  • Supporting security assessments in regulated zones
  • Complementing radar and surface-based systems

SeaStar24 can be configured as part of broader monitoring architectures.

Underwater Activity Localization

SeaStar24 supports the localization of underwater acoustic activity.

Depending on system configuration and deployment geometry, the platform may assist in identifying acoustic signatures associated with:

  • Human underwater movement
  • Equipment-related acoustic sources
  • Subsea operational activity
  • Vessel-proximity acoustic patterns

The system does not classify or identify intent. It provides spatial acoustic visualization to support informed decision-making.

Operational performance depends on environmental conditions and project scope.

Integration into Governmental Monitoring Systems

HydroVision SeaStar24 is currently available as a pre-series (zero-series) platform intended for project-based deployment.

The system can support integration into:

  • Coastal monitoring networks
  • Port security infrastructures
  • Surface and radar surveillance systems
  • Command and control environments
  • Multi-sensor maritime monitoring frameworks

System parameters and processing architecture can be adapted to site-specific requirements in cooperation with governmental partners.

Environmental and Regulatory Considerations

Public authorities increasingly require monitoring technologies that align with environmental protection frameworks.

As an emission-free system, SeaStar24:

  • Does not transmit acoustic pulses
  • Minimizes ecological impact
  • Supports low-impact surveillance concepts
  • Aligns with environmentally responsible maritime oversight

This makes the platform suitable for deployment in environmentally sensitive coastal regions.

Technical Overview

  • 24-channel hydrophone array
  • Real-time beamforming and acoustic localization
  • 2D and 3D acoustic visualization
  • Ethernet-based data interface
  • Modular deployment architecture
  • Project-specific configuration

Detailed technical documentation is available upon request.

Frequently Asked Questions

No. SeaStar24 operates entirely passively and does not emit acoustic pulses.

The platform can be configured to support underwater situational awareness in port and coastal security contexts, depending on project scope.

SeaStar24 is currently available as a pre-series solution intended for project-based implementation and cooperative development.

Yes. The architecture supports integration into broader maritime monitoring and control environments.