advances in technology multistatic sonar
TRANSCRIPT
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Advances in Technology &
Multistatic Sonar
“PERVASIVE SOUND”
Mark Merrifield – Strategy Director
Alan Wignall – Technical Director
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The Challenge
Submarine advantages
Legacy equipment
The Enablers
The Transformation
Operational concepts
Processing & displays
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Submarine advantages
Stealth
Endurance
Lethality
Flexibility
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Multiple Platforms
Multiple Sensors Acoustic
Hull-Mounted Sonar
Variable Depth Sonar
Dipping Sonar
Sonobuoys
Fixed Arrays
Non-Acoustic Radar
ESM
Magnetic Anomaly
Intelligence
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Recognise limitations of legacy ASW sonar: High power ship-centric sonar
Helicopter dipping sonar
Passive and active airborne sonar
Exploit available technologies & systems: Deployable sensors, from MPAs, Helos,
UAVs, ships
Digital sensors and communications
COTS PC processing power
COTS mission system architectures
System & software development tools
Build on existing products & skills: Sonobuoy systems (buoys, telemetry,
processing)
Integrated Sonar System (ISS)
Surface Ship Torpedo Defence (SSTD)
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Passive Buoy Spacing 1,000y – 2000y
Active Buoy Spacing 3,000y – 4000y
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Passive Buoys (HIDAR)
Active Low-Frequency Buoys (ALFEA)
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Passive Buoys (HIDAR)
Active Low-Frequency Buoys (ALFEA)
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Single Ship Multiple Frequency Hull-Mounted Sonar Multiple Frequency Variable Depth Sonar Directional Passive Towed Array Bistatic HMS – VDS operation Multistatic distributed sensor operation
One Sonar – Multiple Sensors Correlation with geographic data and non-acoustic sensors Incorporates torpedo detection, classification & localisation Can include torpedo countermeasures (towed & expendable)
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Increased detection opportunities
Increased probability of detection
Detection on multiple sensors concurrently
Classification aid
Enhanced tracking
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Multiple ship operation
All ASW assets
Ships
Patrol Boats
Auxiliaries
ASW aircraft
Utility aircraft
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A single operator can effectively manage up to four sonars
Probability of tracking rather than probability of detection
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Animated, interactive, geographical, persistent surveillance A single display shows the output of all sensors Geographical representation with chart underlays for track orientation and correlation Drill-down & drill-up to detailed active and passive classification displays
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Legacy standalone sonar systems will evolve into integrated and distributed sonar systems
Wide area persistent surveillance will be achieved using smaller less powerful systems, by creating Pervasive Sound zones (diversity in frequency, space, and time)
The necessary new sonar processing and display concepts, which provide geographic, animated, interactive, persistent surveillance, are enabled by modern PC-based processing power
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Advances in Technology &
Multistatic Sonar
“PERVASIVE SOUND”
Mark Merrifield – Strategy Director
Alan Wignall – Technical Director