SBG Systems Ellipse-A: High-Performance AHRS Sensor
0.1° Roll/Pitch & 0.8 Magnetic Heading
Ellipse-A belongs to Ellipse series line of miniature, high-performance MEMS-based Inertial Systems providing a reliable orientation and heave in a compact package. It includes an Inertial Measurement Unit (IMU), a built-in magnetometer and runs an on-board latest generation sensor fusion algorithm. The IMU embeds high performance, industrial grade MEMS accelerometers and gyroscopes. Coupled with a cutting edge calibration across its entire operating temperature range and advanced filtering techniques, these accelerometers and gyroscopes will provide excellent performance, even in highly vibrating environment.
Ellipse-A: High-Performance AHRS Sensor Technical Specifications
Accuracy (RMS) | |
Roll / Pitch: | 0.1° |
Heading: | 0.8° Magnetic |
Velocity: | - |
Navigation: | - |
Heave Performance | |
Accuracy: | 5 cm or 5% - Valid for Marine Version |
Wave Period: | Up to 15 s (Auto-Adjusting) |
Interfaces | |
Available Data: | Euler angles, quaternion, velocity, position, heave, calibrated sensor data, delta angles & velocity, barometric data, status, GPS data, UTC time, GNSS raw data (Post-processing), etc. |
Aiding Sensors: | GNSS, Odometer, RTCM |
Output Rate: | 200 Hz, 1,000 Hz (IMU Data) |
Main Serial Interface: | RS-232, RS-422, USB - Up to 921,600 bps |
Serial Protocols: | Binary eCom, NMEA, ASCII, TSS |
CAN Interface: | CAN 2.0A/B - Up to 1 Mbit/s |
Pulses: | Inputs: Events, PPS, DMI (Direction or Quadrature) Outputs: Synchronization (PPS) 2 Inputs / 1 Output |
Environmental, Mechanical & Electrical | |
Input Voltage: | 5 - 36 V |
Power Consumption: | < 300 mW |
Specified Temperature: | -40 to 85 °C |
Shock Limit: | 500 g |
Operating Vibration: | 8 g RMS (20 Hz to 2 k Hz per MIL-STD 810G) |
MTBF: | 50,000 Hours |
Size (Box Version): | 46 x 45 x 24 mm |
Weight (Box Version): | 45 g |
Size (OEM Version): | 29.5 x 25.5 x 11 mm |
Weight (OEM Version): | 8g |
What Is the Ellipse-A: High-Performance AHRS Sensor Used For?
UAV Navigation
Gimbaled Camera
Unmanned Ground Vehicle (UGV)
Instrumented Buoy
Antenna Pointing & SATCON On-The-Move (SOTM)
Unmanned Sea Vehicle (USV)
Product Line
| Ellipse-A | Ellipse-E | Ellipse-N | Ellipse-D |
Application | Motion Sensor | INS with your own GNSS receiver | INS for dynamic and automotive applications | INS for low dynamics and robust heading |
Heading | Magnetic | Magnetic or GNSS | Magnetic or Mono-antenna GNSS | Dual antenna GNSS |
Heave: 5 cm or 5% | ✓ | ✓ | ✓ | ✓ |
Odometer Aiding |
| Pulse / CAN OBD-II | Pulse / CAN OBD-II | Pulse / CAN OBD-II |
Navigation |
| Navigation with external GNSS receiver | L1/L2 GNSS receiver 1 cm RTK GNSS Accuracy | L1/L2 GNSS receiver 1 cm RTK GNSS Accuracy |
Post-Processing |
| ✓ | ✓ | ✓ |
Ordering Options
Ordering options for SBG Systems' Ellipse-A:
SBG Systems | Development Kit that includes antenna(s), ground plane(s), and USB to RS-232 cable,
SBG Systems | Ellipse RS-232 / CAN cable (CA-ELI-RS232-CAN-3M) or Ellipse RS-422 cable (CA-ELI-RS422-3M),
SBG Systems | Ellipse RS-232 / USB cable, and provides power to the Ellipse sensor. (CA-ELI-USB-3M).
Frequently Asked Questions
What is the Ellipse-A: High-Performance AHRS Sensor?
Ellipse-A belongs to Ellipse series line of miniature, high-performance MEMS-based Inertial Systems providing a reliable orientation and heave in a compact package. It includes an Inertial Measurement Unit (IMU), a built-in magnetometer and runs an on-board latest generation sensor fusion algorithm.
What is the difference between an AHRS and an IMU?
An IMU outputs raw angular rate and acceleration, while an AHRS such as the Ellipse-A: High-Performance AHRS Sensor runs onboard sensor fusion to output ready-to-use roll, pitch and heading — no external estimation algorithm required.
Where is the Ellipse-A: High-Performance AHRS Sensor available?
The Ellipse-A: High-Performance AHRS Sensor is available through Leo Drive in the following region: Türkiye. For other regions, please contact Leo Drive.
How can I get the datasheet and technical documents for the Ellipse-A: High-Performance AHRS Sensor?
Please contact Leo Drive to request the datasheet, user manual and other technical documents for the Ellipse-A: High-Performance AHRS Sensor.
Explore More at Leo Drive
The Ellipse-A: High-Performance AHRS Sensor is part of the AHRS & Motion Reference Units range at Leo Drive. Browse all autonomous vehicle sensors and components, or talk to our engineering team about integration in your project.

