Key Features

Ruggedised COTS Based Processing

Sonar Processor contains 2 SPU's (620-0051) and 1 PDU (620 0035)

Standard 19"/482.6mm IEC 60297 Rack Mounting

Performs Correlation, Beamforming and Tracking Processes

Receives control and configuration data from Command Workstation

Exports Track, Status and Display Image data to Command Workstation

Switchable Power Input, 115/230 V

Datasheet

Sentinel Sonar Processor

The Sentinel Sonar Processor is used to perform signal and data processing on the raw sonar data received via the Sonar Cable from the Sonar Head. In any Sentinel System deployment, one Sentinel Sonar Processor is required for each Sonar Head.

Raw hydrophone data is received, via Ethernet, at the Sonar Power Distribution Unit (PDU). The internal router then redirects this traffic to the Sentinel Processing Unit (SPU) that has had its role set as Signal Processor (SP). The SP receives the raw hydrophone data and performs correlation/pulse compression and beamforming processes to produce both a full-resolution ping matrix and the required raw data display images. Using the internal router the ping matrix is transferred to the SPU that has had its role set as Automatic Detection and Tracking Processor (ADT). The ADT receives the ping matrix and performs an advanced detection process followed by tracking and classification processes, the resulting track data is then output to the internal router, where, along with the display images and any system status messages, it is made available to the Command Workstation.

The Sentinel Processing Units (SPU's) are completely interchangeable, with the full suite of Sentinel software installed on every processor and the role determined at run time by a coded USB dongle, this approach significantly reduces spares keeping requirements and increases ease of maintenance and upgrade.

The PDU accepts 115/230 V 50/60 Hz AC input and provides a switched output for the two SPU's, protected by a residual current device circuit breaker with a further, separately switched output for sonar power, protected by a secondary earth-leakage protection device. As an additional safety measure when in air the Sonar Head casing can be connected to the supply ground via a third PDU switch.

Sonar Cable Reel signal and power connections are provided via IP65 immersion and salt spray proof connectors and the entire unit is packed in a shock and weather resistant enclosure, suitable for air shipping.

SPU's are configured to start the Sentinel applications automatically on power-up allowing the system to be started without a monitor or keyboard connected.