model 980 active low frequency towed sonar (alofts) · pdf filesonar operator’s console,...
Post on 07-Mar-2018
228 Views
Preview:
TRANSCRIPT
harris.com | #harriscorp
MODEL 980 ACTIVE LOW FREQUENCY TOWED SONAR (ALOFTS)The Model 980 Active Low Frequency Towed Sonar (ALOFTS) is tomorrow’s solution to counter the quiet diesel submarine in the littoral and deep ocean.
INTRODUCTION
The Harris Model 980 ALOFTS system is a robust, proven system with extensive at-sea operating time. A modular system tailored to meet customer requirements, ALOFTS has been fielded on Fast Attack Craft, Catamarans, and Frigates.
ALOFTS combines a high-powered, active source in a variable depth towed body with a directional towed array to receive active and passive signals. This combination allows high levels of acoustic energy to be transmitted by the active source in broad transmit beams which are then received by the narrow highly directional, noise rejecting receive beams of the towed array.
The towing and handling system combines the active source and passive towed array to achieve a single “short scope” tow, which provides rapid response to ship maneuvers and is effective in the littoral, shallow water environment where other towed arrays are ineffective. System features include depth control from the sonar operator’s console, automatic depth keeping and automatic bottom avoidance.
BENEFITS
Open systems architecture
Single tow active and passive sonar detects,classifies, and localizes below layer threats
Torpedo defense and optional countermeasures
Intuitive user interface
DESTROYER-SIZED PERFORMANCE PACKAGED FOR OFFSHORE PATROL VESSEL-SIZED PLATFORMS
About Harris CorporationHarris Corporation is a leading technology innovator that creates mission-critical solutions that connect, inform and protect the world. The company’s advanced technology provides information and insight to customers operating in demanding environments from ocean to orbit and everywhere in between. Harris has approximately $7.5 billion in annualized revenue and supports customers in about 100 countries through four customer-focused business segments: Communication Systems, Space and Intelligence Systems, Electronic Systems, and Critical Networks.
FLORIDA | NEW YORK | VIRGINIA | BRAZIL | UNITED KINGDOM | UAE | SINGAPORE
Harris is a registered trademark of Harris Corporation. Trademarks and trade names are the property of their respective companies.© 2016 Harris Corporation 11/16 MK
Non-Export Controlled Information
FEATURES
High speed towing
Configurable for small and large ships
Port/ Starboard ambiguity resolution
Full azimuth coverage in broadband and narrowband
ALOFTS is a complete anti-submarine warfare (ASW) combat management system with scalable interfaces to torpedo fire control system, torpedo countermeasures, and the ship’s combat management system.
The ALOFTS user interface has been developed in conjunction with naval operators to produce a cohesive set of displays with operator efficiency in mind. This approach makes operation and training intuitive and provides a full range of active and passive formats, that include an underwater tactical picture, real-time performance prediction with XBT control, 3-D active classification, embedded trainer, target motion analysis, built-in-test (BIT), and other unique features.
ALOFTS
SYSTEM FEATURESHigh speed tow: 22 knots operational, 30 knots survivable Simultaneous CW and FM processing
Directional transmission Proven tow body
Embedded high fidelity trainer High capacity recording system
Automatic depth keeping Port/starboard ambiquity resolution
Automatic bottom avoidance Multitarget tracking
Short scope tow Open systems architecture
Small/large ship configurable - ½ the weight of comparable systems Torpedo detection
Simultaneous active and passive operation Embedded XBT /Performance Prediction system
DISPLAY FEATURES
Active 360 ° search Built-in test reporting
Active sector search Performance prediction
Active classification (3-D display) Passive classification (DEMON)
Tactical geographic display Passive broadband search and track
RESULTING CAPABILITIESLong-range detection Reverberation reduction
Left/right ambiguity resolution Flow noise minimization at high speed
top related