SBG Ellipse-E Miniature INS

SBG Ellipse-E: Miniature INS

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The Ellipse-E is a versatile miniature Inertial Navigation Sensor that connects to external GNSS receiver to provide navigation data, and other sensors such as DVL or odometer. The Ellipse-E provides roll, pitch, magnetic or GNSS heading, heave and position.



The Ellipse-E from SBG Systems is a miniature high performance sensor designed for Inertial Navigation Systems. It provides the computing capacity for navigational data when it connects to external GNSS receivers. The sensor weighs approximately 50 grams.

This lightweight sensor works on Extended Kalman Filter (EKF) and includes a MEMS-based Inertial Measurement Unit (IMU) to provide accurate real time orientation and navigation data (DMI, RTM, etc). The Ellipse-E is basically a real time fusion of inertial, GNSS and aiding data. It has the capability to reject false GPS measurement data.

The Ellipse-E a versatile device suitable for Air, Land and Marine transportation applications and provides accurate navigation results regardless of medium that it is used in.


  • 0.05° Roll & Pitch (RTK)
  • Magnetic or GNSS Heading
  • Position depends on External GNSS
  • 5 cm Real-time Heave
  • Very Low Noise Gyroscopes
  • Efficient Vibrations Handling
  • Up to 5x RS232/422 serial ports
  • ITAR Free
  • Available in a Light Enclosure (OEM)
  • Full Development Kit

Technical Specifications

Accuracy (with Supported GNSS Receiver)
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
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)
Weight:47 g
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-E miniature INS 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.