An Attitude and Heading Reference System (AHRS) provides real-time roll, pitch, and magnetic-based heading information for the AUV orientation and navigation aid.

Recommended products

Ellipse-A

Ellipse-A

Motion Sensor

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

Ellipse 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
Ellipse-E

Ellipse-E

Externally-aided INS

Ellipse-E provides Roll, Pitch, Heading, and Heave, and computes Navigation data when connected to an external Positioning solution. It embeds a 64-bit architecture for high-end filtering processing.

Ellipse Series ››
  • 0.05° Roll & Pitch (RTK)
  • Magnetic or GNSS Heading
  • 5 cm Real-time Heave
  • Integrate your own positioning solution
  • Binary, NMEA, ASCII, and TSS

Ellipse-A

Motion Sensor

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

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

Ellipse 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 ››

Ellipse-E

Externally-aided INS

  • 0.05° Roll & Pitch (RTK)
  • Magnetic or GNSS Heading
  • 5 cm Real-time Heave
  • Integrate your own positioning solution
  • Binary, NMEA, ASCII, and TSS

Ellipse-E provides Roll, Pitch, Heading, and Heave, and computes Navigation data when connected to an external Positioning solution. It embeds a 64-bit architecture for high-end filtering processing.

Ellipse Series ››

Case studies

Tips

The SBG on-board hard and soft iron calibration tool allows for calibration in the water. It ensures a precise heading in any 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.