Naval Echosounder

The Naval Echosounder is designed as a universal replacement for all existing navigation echo sounders. The unit is based upon Marport's Software Defined Sonar technology and is designed for naval surface and submarine applications. Advanced digital signal processing delivers reliable, automatic bottom tracking and hands off operation. Internal data logger presents a history of a vessel's previous operations - water depth, position, course/speed, and time data. The front panel consists of a high contrast, color TFT touch screen LCD display. All operating parameters provide immediate audio and visual selection feedback.

The unit's software defined architecture enables signal processing to be performed in software which can be programmed to accommodate any frequency, bandwidth, or pulse length. It can use both CW and FM (CHIRP) transmit pulse with correlation processing of the return signal. In addition to improved target discrimination, CHIRP modulation achieves superior signal to noise gain over conventional CW sounders for enhanced bottom detection. A robust, bottom tracking algorithm maintains bottom lock and delivers accurate depth data over even the most difficult bottom topographies.

The broadband transceiver can be dynamically tuned from 1 kHz – 1 MHz. Acoustic characteristics include superior shallow and deep water performance (~0.5 meters depth @ 200 kHz; ~5000 meters depth @ 12 kHz). The unit can be easily configured to operate with multiple echosounder transducers.

The system interfaces to external peripheral devices via RS232/ RS-422 serial communication interfaces and Ethernet. These devices include digital data loggers, NMEA 0183-compatible position sensors, remote displays, heave sensor, external synchronization, etc.

The bridge computer is delivered with Marport’s CommandView visualization software already installed. CommandView enables processing, display and recording of depth pro?les that are co-registered with position and environmental data (pressure, temperature, density, salinity and sound velocity).

Depth data is presented as an echogram or as numerical values on a high-resolution, touch screen color display. Up to four independent frequencies can be shown on the same display, with a variety of display modes including bottom-lock, zoom, A-scope, and navigation data. All data is stored on an internal hard drive for post-acquisition review. Ethernet interfaces enable data transfer and integration into other onboard systems for remote control, data-sharing and archiving capabilities.

Features

• Broadband Transceiver
• CHIRP FM Modulation
• Ethernet Network Support
• Interfaces for DGPS, INS, ECDIS, Sound Velocity Profile, Speed Log, Heave Sensors
• Supports Multiple Remote Displays
• Environmental Data Acquisition
• Multiple Transducer Inputs
• Adjustable Transducer Offset
• Massive Data Storage
• Integrated Self Test
• Power Failure Auto Reboot
• 17" Colour TFT Display
• Meets Military Standards
• Variety of Mounting Options