Innomar "autonomous" USV with Sub-Bottom Profiler

Innomar autonomous ASV with parametric sub-bottom profiler Innomar's parametric sub-bottom profilers are often used in shallow and extremely shallow waters with limited access for vessels and boats. To support such surveys Innomar offers a remotely operated surface vehicle pre-configured with the Innomar smart SBP. This vehicle can be used to survey a pre-defined area automatically or to work in protected areas like drinking-water reservoirs. It is also possible to integrate third-party equipment, such as ADCP, MBES or sidescan sonars.


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Click on pictures to enlarge. Photos show the first generation, the current setup is shown below.


System Components

Innomar autonomous ASV system overview

  • Innomar smart parametric sub-bottom profiler (3) with transducer and mounting bracket (4)
  • dotOcean Calypso inflatable survey platform (1)
  • one box for platform control electronics (2) (dotOcean AYB, uninterrupted power supply (UPS) for payload PC and control electronics, sensors) and thruster battery
  • dotOcean AYB / Atlantis cloud auto-navigation, manual radio remote control
  • one box for payload battery (5)
  • underwater thrusters (6)
  • WiFi and LTE/4G antennas (7)
  • optional: dual-antenna GNSS for position and heading

Note: Due to shipping restrictions, batteries are usually not included in the delivery.


Technical Specification

Sub-bottom Profiler
(Innomar smart SBP)
Water Depth Range 0.5 – 100 m
Sediment Penetration up to 20 m (depending on sediment type and noise)
Range / Layer Resolution approx. 1 cm / better than 10 cm
Transmit Beam Width (-3dB) approx. ±2.5° / footprint <9% of water depth
Primary Frequencies (PF) approx. 100 kHz (frequency band 90 – 110 kHz)
PF Source Level / Acoustic Power >235 dB//µPa re 1m / ~2 kW
Secondary Low Frequency (SLF) centre freq. 10 kHz (total frequency band 5 – 15 kHz)
Pulse Width user selectable 0.1 – 0.5 ms
Pulse Type Ricker, CW
Ping Rate up to 40 pings/s
Heave / Roll / Pitch Compensation heave (depending on external sensor data)
Data Acquisition digital 16 bit @ ~70 kHz sample rate;
PF 100 kHz envelope echosounder data / bottom track;
SLF 10kHz full-waveform sub-bottom data
Dimensions / Weight W 0.43m × D 0.33m × H 0.23m / 9 kg
Power Supply 10 – 30 V DC / <100 W
Transducer (2m cable) W 30cm × D 22cm × H 9cm / 13kg
incl. cable and mointing bracket

Survey Platform / Propulsion / Power Supply
Dimensions / Weight L 180cm × W 93cm × H 20cm / 16kg
Platform Payload Capacity max. 150 kg
Remote Control cloud control (3G / 4G) or radio R/C
Under Keel Clearance 25 cm
Speed max. 3 knots
Sensor Mount via moon-pool or detachable bracket
Platform Control Box W 66cm × D 52cm × H 38cm / 29kg (excl. battery)
incl. control electronics, data acquisition PC with UPS

Payload Power Supply
Payload Battery Box W 0.43m × D 0.33m × H 0.23m / 4 kg (excl. battery)



  • surveys in very shallow waters
  • surveys in sensible environments such as drinking-water reservoirs
  • automatic data acquisition in pre-defined areas with narrow line spacing for shallow-seismic 3D modeling
  • users may integrate various third-party equipment, such as MBES, ADCP or sidescan sonar



Related Documents


Technical specifications are subject of change without notice.