SBG Ellipse-D Miniature INS

SBG Ellipse-D: Miniature Dual GNSS INS

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The Ellipse-D is the smallest Inertial Navigation System integrating a dual-antenna, multi-band GNSS receiver, capable of delivering precise heading as well as centimeter level position accuracy in the most challenging GNSS conditions. It provides attitude, heading, heave as well as navigation outputs. The Ellipse-D is an ideal choice for magnetic denied applications and can operate in all dynamic conditions with optimal performance.

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Overview

The Ellipse-D uses an enhanced Extended Kalman Filter (EKF) and contains a MEMS-based Inertial Measurement Unit (IMU). These features allows the unit to combine GNSS and inertial data and suitable for use in diverse applications such as data geo-referencing, payload orientation and positioning, and motion and heave monitoring.

The Ellipse-D offers a compact and cost-effective solution for accurate heading requirements. As it has a dual antenna heading, this eliminates typical magnetic calibration issues that allows it to be used in applications where the magnetic field is not reliable. The integrated Survey-grade L1/L2 GNSS receiver with two antennas allows unmatched position and heading accuracy.

The Ellipse-D is suitable for applications in marine, land and aerospace applications. It is ideally suited for wave measurement, motion monitoring, and onboard equipment (antennas, camera, etc.) stabilization and orientation, as well as entry-level mobile mapping and car motion monitoring.

Features

  • 0.05° Roll and Pitch (RTK)
  • 0.2° Heading (Dual Antenna RTK GNSS)
  • Immune to magnetic distortions
  • 1 cm RTK GNSS Position
  • Post-processing with Qinertia PPK Software
  • Very Low Noise Gyroscopes
  • Efficient Vibrations Handling
  • ITAR Free
  • Tiny OEM module available
  • Full Development Kit

Technical Specifications

Accuracy
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
GPS:L1C/A, L2C
GLONASS:L1OF, L2OF
Galileo:E1, E5b
BeiDou:B1/B2
Update Rate:5 Hz
Cold Start:< 24 s
Hot Start:< 2 s
Accelerometers
Gain Stability:1000 ppm
Non-linearity:1500 ppm
Bias Stability:± 5 mg
Random Walk:57 µg/√Hz
Gyroscopes
Gain Stability:500 ppm
Non-linearity:50 ppm
Bias Stability:± 0.2 °/s
Random Walk:0.15 °/√hr
Magnetometers
Gain Stability:< 0.5 %
Non-linearity:< 0.1 % FS
Bias Stability:± 1 mGauss
Random Walk:3 mGauss
Physical
Size:46 mm x 45 mm x 32 mm (Box)
29.5 mm x 25.5 mm x 16 mm (OEM)
Weight:65 g (Box)
17 g (OEM)
Input Voltage:5 – 36 V
Power Consumption:< 460 mW
Environmental
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

Video

Ordering

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

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