An Attitude and Heading Reference System (AHRS) provides real-time Roll, Pitch and magnetic-based Heading information that are used for the AUV orientation and navigation aid.

Recommended products

Ellipse2-A

Ellipse2-A

Motion Sensor

Ellipse2-A is a miniature motion sensor which provides real-time orientation information.
This robust industrial-grade AHRS benefits from a 2-year warranty.

Ellipse 2 Series ››
  • 0.1° Roll and Pitch over 360°
  • 1° Heading (Internal Magnetometers)
  • 200 Hz output rate
  • Binary, NMEA, ASCII, and TSS Protocols
Ellipse 2 Micro AHRS

Ellipse 2 Micro AHRS

Volume Application

The Ellipse 2 Micro Series is a new product range reducing size and cost of high performance inertial sensors for volume projects.

Ellipse Micro Series ››
  • 0.1° Roll/Pitch
  • Magnetic Heading
  • Light-Weight – 10 grams
  • Designed for volume projects
Ellipse2-E

Ellipse2-E

Externally-aided INS

Ellipse2-E provides Roll, Pitch, Heading, and Heave, and computes Navigation data when connected to an external Positioning solution.

Ellipse 2 Series ››
  • 0.1° Roll and Pitch over 360°
  • Magnetic or GNSS Heading
  • Integrate your own positioning solution
  • Binary, NMEA, ASCII, and TSS

Ellipse2-A

Motion Sensor

  • 0.1° Roll and Pitch over 360°
  • 1° Heading (Internal Magnetometers)
  • 200 Hz output rate
  • Binary, NMEA, ASCII, and TSS Protocols

Ellipse2-A is a miniature motion sensor which provides real-time orientation information.
This robust industrial-grade AHRS benefits from a 2-year warranty.

Ellipse 2 Series ››

Ellipse 2 Micro AHRS

Volume Application

  • 0.1° Roll/Pitch
  • Magnetic Heading
  • Light-Weight – 10 grams
  • Designed for volume projects

The Ellipse 2 Micro Series is a new product range reducing size and cost of high performance inertial sensors for volume projects.

Ellipse Micro Series ››

Ellipse2-E

Externally-aided INS

  • 0.1° Roll and Pitch over 360°
  • Magnetic or GNSS Heading
  • Integrate your own positioning solution
  • Binary, NMEA, ASCII, and TSS

Ellipse2-E provides Roll, Pitch, Heading, and Heave, and computes Navigation data when connected to an external Positioning solution.

Ellipse 2 Series ››

Tips

The SBG on-board calibration tool allows calibration in water. It ensures a precise heading in all orientation by taking into account the real environment where the AUV will be gliding.

The Inertial Measurement Unit (IMU) outputs gyroscopes, accelerometers, and magnetometers raw data. The Attitude and Heading Reference System (AHRS) embeds an Extended Kalman Filter (EKF) to deliver orientation data, and the Inertial Navigation System (INS) additionally embeds a GNSS receiver for a filtered position in real-time.