Surveillance and Security - Small Target Detection

Shored based Small Target Detection radar imaging can track a small craft where it would otherwise be invisible amongst other surface features.

Environmental, security and safety concerns are the stimulus for increased port security and coastal surveillance regulations worldwide. Effective surveillance systems are, in Rutter's view, dependent on primary radar detection supported by other sensors to provide enhanced, accurate information.

Rutter's Small Target Detection System captures and display's information gathered from multiple sensors, which are easily integrated with existing coastal surveillance radar installations.

The company's proven radar tracking and processing technology offers exceptional value and highly effective surveillance solutions. Its experience and technology offer applications which provide capabilities associated with larger systems, but in smaller more cost effective packages.

Rutter does not simply integrate third party sensors but provides leadership in radar processing and tracking technology. Its experience and capability is recognised worldwide and has, over the past 20 years, established a reputation for its small target detection in high clutter systems.

Evolution of new technologies is a continuous process at Rutter. Their aim, to provide enhanced detection of difficult targets in all weather, marine and light conditions.

Coastal Surveillance System

Modular Design means it can begin with a small, simple option and evolve into a sophisticated system. Or it can be customised to provide a complete, comprehensive solution, with an entire, fully integrated surveillance system.

The Sigma S6, Small Target Detection System, is scalable to meet virtually any port or coastal surveillance need. Its AIS interface provides the ability to view and track all vessels, display their information and to send and receive safety related messages.

Sigma S6 Radar Technology

  • Maintenance of full dynamic range in processing
  • Pulse-to-pulse averaging
  • Scan-to-scan averaging
  • Ordered Statistic Constant False Alarm Rate processing
  • Dynamic image thresholding
  • Simultaneous high speed and low speed target tracking
  • Network connectivity and control
  • Target association
  • Target correlation
  • Connectivity to virtually any surveillance radar
  • Proven Sigma radar detection and tracking technology
  • Tailor-made solutions for ships and offshore platforms
  • Multiple site remote monitoring and control capability
  • Integrates task-related multi-sensor information

Sigma S6 Small Target Detection Radar System integrates with Sigma S6 Oil Spill Detection (OSD) and Ice Navigator Systems, providing a complete solution to meet demanding operational requirements.

SIGMA S6 – Specification


  • Marine certified 19" 3U rack / bulkhead mount computer
    - 4 x RS-422, 2 x RS-232, 4 x USB, 1 x LAN
    - 60 GB HD,
    - 115-230 VAC, 50-60Hz
  • Marine certified 19" or 23" TFT display, keyboard/trackball
  • Sigma RSi Interface Card
  • Sigma S6 SeaScan Radar Server Processing Module
  • Sigma S6 SeaTrack Target Tracker
  • Sigma S6 SeaView Radar Display and Remote Display Client

Recommended Source Radar Requirements for optimum performance against small targets:

  • X-Band, 25 kW with 3000 Hz Pulse Repetition Frequency
  • 1° Antenna Beam Width, >40 RPM Antenna Rotation Speed

Radar Interface

  • Raw Video
  • Trigger
  • Heading (ARP)
  • Antenna Rotation (ACP)
  • CVD interface can be supplied for composite radar video and other unique radar types

Data Input Interfaces (NMEA RS-422)

  • GPS for Position and Time
  • Gyro Compass w/10 Hz update rate
  • AIS
  • Anemometer
  • Depth Sounder

Data Output Interface (NMEA RS-422)

  • TTM (Tracked Target Message), or
  • RSD (Radar System Data / cursor), as selected by operator
Sigma S6 Small Target Detection
Sigma S6 Small Target DetectionSmall Target Detection Fact Sheet Download..
Sigma S6 Surveillance Radar
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