SBG Ellipse-N Miniature INS/GPS

SBG Ellipse-N: Miniature INS/GPS

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The Ellipse-N is a small-sized high-performance RTK Inertial Navigation System (INS) with an integrated Dual band, Quad Constellations GNSS receiver. It provides Roll, Pitch, Heading, Heave and centimetre-level GNSS position. The Ellipse-N is be best suited for dynamic environments, and harsh GNSS conditions, but can also operate in lower dynamic applications with a magnetic heading.



The Ellipse-N miniature INS/GPS from SBG Systems is a small, compact device that acts as an Inertial Navigation System (INS) using a GNSS receiver. The Ellipse-N has three gyroscopes, three accelerometers and three magnetometers. It produces high accuracy results and works on the MEMs-based Inertial Measurement Unit (IMU) principle.

The Ellipse-N runs on enhanced Extended Kalman Filter (EKF) which incorporates inertial data with GNSS, odometer and DGPS information for the precise orientation and the accurate navigation data even in the harsh environment.

This product is water resistant and is suitable for Marine, Land and Aerospace applications.


  • 0.05° Roll and Pitch (RTK)
  • 0.2° Heading (RTK High Dynamics)
  • 5 cm Real-time Heave
  • 1 cm RTK GNSS Position
  • Raw Data for Post-Processing
  • Very Low Noise Gyroscopes
  • Efficient Vibrations Handling
  • ITAR Free
  • Extremely Small OEM Module Available
  • Full Development Kit

Technical Specification

Pitch & Roll:0.1° SP
0.05° RTK
0.03° PPK
Heading:0.2° Dual antenna 2m
0.2° Single antenna with dynamics
0.1° PPK
Velocity:0.03 m/s
Navigation:1.2 m Single Point
1 m SBAS
1 cm RTK/PPK + 1 ppm
Heave Accuracy:5 cm or 5% – Valid for Marine version
Heave Period:Up to 15 s – Automatically adjusts to the wave period
Internal GNSS
Features:SBAS, RTK, RAW
Galileo:E1, E5b
Update Rate:5 Hz
Cold Start:< 24 s
Hot Start:< 2 s
Gain Stability:1000 ppm
Non-linearity:1500 ppm
Bias Stability:± 5 mg
Random Walk:57 µg/√Hz
Gain Stability:500 ppm
Non-linearity:50 ppm
Bias Stability:± 0.2 °/s
Random Walk:0.15 °/√hr
Gain Stability:< 0.5 %
Non-linearity:< 0.1 % FS
Bias Stability:± 1 mGauss
Random Walk:3 mGauss
Size:46 mm x 45 mm x 24 mm (Box)
29.5 mm x 25.5 mm x 16 mm (OEM)
Weight:49 g (Box)
17 g (OEM)
Input Voltage:5 – 36 V
Power Consumption:< 460 mW
Specified Temperature:-40 °C to 85 °C (-40 °F to 185 °F)
Shock Limit:2000 g
Operating Vibration:8 g RMS (20 Hz to 2 k Hz per MIL-STD 810G)
IP RatingIP68
MTBF:50,000 hours



All products from SBG Systems come with a 2-year warranty. This warranty can be extended up to 5 years. The warranty is covered in more detail in the SBG Services page.

Why Buy from Us?

In business since 2004, Canal Geomatics is an authorized dealer for SBG Systems and has established itself as an industry-leading distributor of high-precision positioning products in North America. Our mission is to find the best solution for each unique application and extend premium support to ensure the long-term success of our customers. We offer both volume and reseller discounts for the majority of our product lines.


The Ellipse-N miniature INS/GPS from SBG Systems is available through Canal Geomatics. If you would like more information about this product, please get in touch with us by completing the Request Pricing form.