Getting motion information is especially important for dynamics analysis to build the most efficient ship, and for safety to avoid capsizing.

The GNSS-aided AHRS also provides precise and robust real-time navigation data.

Recommended products

Dual antenna GNSS/INS

Dual antenna GNSS/INS

Motion Sensor

Ellipse2-D is a compact Inertial Navigation System with integrated Dual antenna RTK GNSS receiver for precise position and heading.

It provides Roll, Pitch, Heading, Heave and Navigation data.

Ellipse 2 Series ››
  • 0.1° Roll and Pitch over 360°
  • 0.2° GNSS Heading
  • 5 cm Heave
  • 2 cm RTK GNSS Position
Ellipse2-E

Ellipse2-E

Externally-aided INS

Ellipse2-E is a small-sized high performance Inertial Navigation System.

It provides Roll, Pitch, Heading, and Heave, and computes Navigation data when connected to an external GNSS receiver.

Ellipse 2 Series ››
  • 0.1° Roll and Pitch over 360°
  • 0.5° GNSS Heading
  • 5 cm Heave
  • Position accuracy depends on the external GNSS
Ellipse-A

Ellipse-A

Motion Only

This light-weight sensor (45 grams) is a small-sized high performance Attitude and Heading Reference System (AHRS).

It provides Roll, Pitch, Heading, and Heave data that adjust to the wave frequency.

Ellipse 2 Series ››
  • 0.1° Roll and Pitch over 360°
  • 1° Heading (Magnetometers)
  • 5 cm Heave

Dual antenna GNSS/INS

Motion Sensor

  • 0.1° Roll and Pitch over 360°
  • 0.2° GNSS Heading
  • 5 cm Heave
  • 2 cm RTK GNSS Position

Ellipse2-D is a compact Inertial Navigation System with integrated Dual antenna RTK GNSS receiver for precise position and heading.

It provides Roll, Pitch, Heading, Heave and Navigation data.

Ellipse 2 Series ››

Ellipse2-E

Externally-aided INS

  • 0.1° Roll and Pitch over 360°
  • 0.5° GNSS Heading
  • 5 cm Heave
  • Position accuracy depends on the external GNSS

Ellipse2-E is a small-sized high performance Inertial Navigation System.

It provides Roll, Pitch, Heading, and Heave, and computes Navigation data when connected to an external GNSS receiver.

Ellipse 2 Series ››

Ellipse-A

Motion Only

  • 0.1° Roll and Pitch over 360°
  • 1° Heading (Magnetometers)
  • 5 cm Heave

This light-weight sensor (45 grams) is a small-sized high performance Attitude and Heading Reference System (AHRS).

It provides Roll, Pitch, Heading, and Heave data that adjust to the wave frequency.

Ellipse 2 Series ››

Tips

Two antennas will provide a more precise heading, especially when the ship is in slow motion and a lot faster initialization. At least two constellations is recommended to optimize satellite availability, so a more robust heading.

Antennas should be installed in a spot where the GNSS reception is optimal such as the back of the boat. It should be installed far from obstacles like the sailing boom for example.

If you want to pair the Ellipse2-E with your own GNSS receiver, note that we recommend using a survey grade GNSS receiver for robust navigation.