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  • Underwater Acoustics

    Post Analysis System

    Easily capture the acoustic signature of targets

    Advanced processing and flexible GUI tools

    Various types of programmable filters

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    • Displays include: LOFAR, Time Series, Spectrogram, Autospectrum, Auto Correlation, Cross Correlation, Bearing Time Record (BTR), Line BTR, DEMON, Frequency Azimuth (FRAZ), Plan Polar Indicator (PPI), Phase, DIFAR and Tactical
    • Passive, Active and Active Intercept processing
    • Geology Filter and various types of programmable filters
    • Array Geometry Editor that supports user defined sonar array configurations including towed arrays, hull-mounted sonars, flank arrays, cylindrical arrays and arbitrary arrays
    • Configurable Beamformer
    • One system to handle different sonar platforms
    • Faster than real-time processing based on hardware availability
    • Enhanced tools for detailed acoustic analysis
    • User defined processing
    • Can often find and classify 200% of contacts found by the crew
  • Array is proud to offer our state-of-the-art Post Analysis System (PAS), a fully modular and extensible system consisting of a high performance parallel signal processor, mass storage archive and a number of Operator Workstations. The PAS system is able to process sonar records from all naval systems, including active and passive sonar records from both surface ship and submarine systems. Supported sensors include towed arrays, bow arrays, flank arrays, passive-ranging systems and a number of different types of sonobuoy. The PAS features a fully user-programmer beamformer which includes a graphic user interface allowing analysts to define the position of array elements and to specify the desired beams to be formed.
  • SystemDiagram

    Signal Processor

    The Signal Processor is the heart of the PAS. It utilizes a cluster architecture, which allows the number of processing nodes to be scaled to meet performance requirements without any change to the software. This facilitates cost-effective upgrades to system capability to handle more channels, a higher sample rate or more numerically-intensive signal processing algorithms. It also allows the system to be operated in a degraded mode should an individual signal processing node fail.

    All the sonar signal processing algorithms in PAS are implemented as plug-in modules, allowing the system to be readily extended to support new processing techniques. Similarly, support for input devices and for the data format of raw sonar records is implemented by means of plug-ins, so support for new vessels and sonar sets may be added easily. The Application Programmers’ Interface for plug-in module development allows end-users and third parties to add support for new sonar systems and new processing requirements.

    Operator Workstation

    The Operator Workstation includes a graphical user interface allowing analysts to assemble flexible processing chains using the signal processor’s plug-in modules. The workstation provides a wide selection of different analysis displays and measurement cursors, and includes an audio monitoring facility for reviewing sonar data aurally. Optionally, the Operator Workstation Software may interface with a Target Signature Classification Database (such as Array’s Acoustic Signature Classification System) allowing automatic transfer of signal parameters, bitmap images and acoustic samples between the Operator Workstation and the database. The PAS supports multiple Operator Workstations. Operators may work on separate tasks or may collaborate with one-another to analyze a single large dataset.

  • Array's Post Analysis System is one of the most advanced sonar processors available. It incorporates advanced processing and flexible GUI tools that allow operators to easily capture the acoustic signature of the targets.

    Currently in use by the:

    Sweden
    Sweden
    Germany
    Germany
    Canada
    Canada