Aegir57N
Compact matrix sonar for navigation and security
Aegir SSA (Subsea Situational Awareness) is a family of commercial sonar systems designed to provide continuous underwater awareness for maritime security, safety, navigation, and infrastructure protection applications. Developed by KONGSBERG, the Aegir family combines proven acoustic sensing technology with compact form factors, simplified integration, and flexible deployment options.
Compact matrix sonar for navigation and security
Aegir57N combines navigation and security in a compact matrix sonar that directs its acoustic beams towards selected areas rather than scanning in all directions. It provides detailed information about the water column and seabed, supporting forward-looking navigation in uncharted waters and obstacle detection. For security applications, it can complement omnidirectional sonars by focusing surveillance on a specific approach or area. Its compact design and Ethernet interface allow straightforward integration on uncrewed surface vessels (USVs), fixed installations and other platforms where space is limited. Aegir57N has a maximum range of 2,500 metres. Actual detection range depends on the target and the current environment.
Unlike an omni sonar, a matrix sonar uses a fixed, square transducer with the elements placed in a rectangular matrix pattern. The advantage is a focused coverage area in the direction the transducer faces. With the transducer facing straight down, the sonar performs as a multibeam echo sounder. With the transducer facing forward, it can be used for navigation.
Built on proven sonar expertise
Built on KONGSBERG’s long-standing sonar expertise, Aegir enables operators to enhance situational awareness below the waterline and supports safer navigation and informed operational decision-making. The sonar family is designed as a commercial off-the-shelf (COTS) solution suitable for civilian, governmental, and dual-use applications with large volumes and short delivery time.
Key features
- Focused, high-resolution coverage of a selected sector, approach or area
- All transceiver electronics placed inside the transducer – fewer cables, less noise and easier installation
- Quadping ®: four simulataneous pings detect and follow targets throughout the water column
- Forward 3D bathymetry view
- Operating frequency selectable from 55 to 59 kHz in steps of 1 kHz
- Fully stabilized narrow beams and state-of-the-art signal processing for high definition and detection
- Store and recall sonar data; define and save your own user settings
- Flexible software with open integration approach (API) for maritime systems and platforms
- Optional AI-enabled virtual sonar operator
System diagram
- A
Display
- B
Operating panel
- C
Processor unit
- D
Power supply unit
- E
Transducer
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We offer comprehensive after-sales assistance
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Technical support
We are committed to helping you get the most value from your systems throughout their entire lifetime. Our support organisation provides expertise, guidance and hands‑on assistance.
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Training
We can provide detailed training on the use of our products to ensure your crew is equipped with the necessary operational competence to minimise technical risk and maximise return on your asset investment.