[ Home ] [ Projects ] [ Contact ] [ Personnel ] [ Products ] [ Links ] [ ANC ] [ Downloads ] [ Jobs ]

Acoustic Surveillance Unit (ASU)

Download ASU Fact Sheet

Features:

  • Integrated acoustic sending and signal processing
  • Custom Application Specific Integrated Circuits (ASIC) for passive acoustic vehicle direction and localization
  • Wake-up sub-system for ultra low-power consumption
  • Contact reports or analog outputs available
  • Acoustic Horn design maximizes aperture and reduces wind noise
  • waterproof sensor capabilities
This versatile and affordable design of SSC's compact acoustic sensor may be adapted to meet multiple customer specifications, including FPGA and DSP implementations.

Benefits:

  • Covert, long endurance UGS with no moving parts for increased reliability
  • Ready for vehicle-mounted or ground application
  • Affordable
  • Bearing accuracy capability to within 5 degrees at frequencies above 100 Hz
  • Rugged for vehicle and/or ground applications
  • Compact size (11 cm diameter)
  • Low Wind Noise

Power Budget

Function

Component

Wake-Up Subsystem

Microphone and Amplifier

Wake-Up Chip

Clock/ Microcontroller

Total Wake-Up Power

0.35 mW

Bearing Estimator Subsystem

Microphone and Amplifier

Microcontroller

Bearing Estimator Chip

Total Bearing Estimation Power

3.24 mW

Power Source

4 AA Batteries

Life @10% Duty Cycle

1.9 years

Life @1%Duty Cycle

3.2 years

Download ASU Fact Sheet