ANTI SUBMARINE WARFARE SONAR HMS ASW-75 MOD 2 w w w. a r m e l s a n . c o m KEY FEATURES: • Medium Frequency Hull Mounted Active Sonar for light and medium platforms • Designed as a stand alone system with multiple interfaces to detect, track and classify the submarines • 360 degrees of simultaneous passive surveillance for self-protection against torpedoes • Integrated on-board simulator
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ANTI SUBMARINE WARFARE SONAR HMS ASW-75 MOD 2
w w w. a r m e l s a n . c o m
KEY FEATURES:• Medium Frequency Hull Mounted Active Sonar for light and medium platforms• Designed as a stand alone system with multiple interfaces to detect, track and
classify the submarines• 360 degrees of simultaneous passive surveillance for self-protection against
Active Mode of OperationParameter Specification Summary
Transducer Array 36 staves, 8 vertically installed elements on each stave Diameter 122 cm, height 85 cm, weight 1.5 ton
Transmission Frequency 7.5 KHz
Source Level221 (-/+1) dB re 1 µPa @ 1 m (OMNI) (Reducible down by 3 dB steps) 229 (-/+1) dB re 1 µPa @ 1 m (RDT modes)
Bandwidth 400 Hz (ASW)Pulse Types HFM (up or down), CW, HFM + CW Pulse Lengths 0.008 – 1 s selectable with 0.008 s stepsRange Scales 4500 m, 9000 m, 18.000 m, 30000 m Transmission Modes OMNI, MCC, RDT and MAS (Optional)
Classification Underwater target classification, alert is raised by the operator. Classification supported by computing aspect angle and Doppler evaluation.
Tactical Aids Sonar Performance Prediction modeling software Tactical Display
Fault Detection and Fault Localization Start-up and online built-in test during operation.
Display Formats
A-Scan (with several pings history) B-Scan B-Scope Magnifier
Simulation Simulation, record and replay facilities available.
Passive Mode of OperationParameter Specification Summary
Operating Frequency 1 – 5 KHz
Tactical Aids
Measurement of stave levels. Problematic staves can be excluded from beamformer. Digital filtering for detection (low pass, high pass, band pass, band stop), cutting frequencies selectable. DEMON analysis, frequency scales selectable.
Fault Detection and Fault Localization Start-up and online built-in test during operation.
Display Formats Bearing Time Record (BTR) (waterfall and envelope) (in energy and line detection displays), PPI Scope and DEMON (waterfall and envelope)
Integration Time Selectable by the operator; 1, 2, 4, 8, 16 and 32 seconds (For BTR and DEMON waterfalls)
Time Scale Selectable by the operator; 5, 10, 20, 40, 80 and 120 minutes (For BTR waterfall) 5, 10 and 20 minutes for DEMON waterfall
Simulation Simulation, record and replay facilities available.Intercept Intercept detection within the operating frequency