TRAPS – Towed Reelable Active Passive Sonar

Compact ASW Performance

TRAPS is a compact, low-cost, active/passive, variable depth ASW sonar for in-service and future navy vessels. TRAPS provides the compact footprint required for small combatants and the performance required to detect submarines, torpedoes, and surface ships. The TRAPS system was developed as a single-tow Vertical Projector Array (VPA) to eliminate the need for the special handling required to deploy and retrieve towed VPAs. By reeling the specially-designed projector directly onto the winch drum, unique over-boarding equipment, ship time, and manpower are greatly reduced while productivity and relevant data collection are improved.

Description

  • Ideal for small combatants such as OPVs, corvettes, ships of opportunity, and USVs
  • Ideal for littoral operations and very useful in deep water as part of a multistatic system
  • Naval defence and surveillance
  • Drug interdiction
  • Homeland security
  • Water-borne policing
Active Frequency
VLF, LF, MF, and HF
Source Level
High power
Transmit
Omni-directional
Receive
Directional receive array
Detection Range
Up to 150 km (Excess of 2nd CZ)
Maximum Operating Depth
300 m
Tow Speed
17+ kt
Survival Speed
28+ kt
Features
  • Installation options include containerization on multi-mission
    vessels and standard deck-mounting
  • Compatible with hull-mounted sonar, dipping sonar and sonobuoys for bistatic and multistatic operations
  • Surface operation without cavitation
  • Compact winch and fairlead
  • Horizontal beam pattern
  • Left-right ambiguity resolution
  • Multi-target tracking
  • Built-in health monitoring/BIT
  • Processing software designed with advanced displays, analysis tools, and intuitive workflow to aid operators and reduce training requirements
  • Adjustable source level and monitoring for marine mammals
Options
  • Active torpedo detection
  • Torpedo decoy
  • Passive receiver
  • Black box pinger detection
  • Sonobuoy processor
Components
  • Directional passive towed array
  • Vertical projector array
  • Armoured tow cable
  • Neutrally-buoyant tow cable
  • Slip-ring winch and fairlead
  • Power amplifier, step-up transformer and signal generator
  • Control console and sonar processing software with real-time detection, classification and localization