SBG Ellipse D Marine Inertial Navigation System

The SBG Ellipse D Marine inertial measurement unit is a compact and rugged GNSS navigation system. It integrates an inertial measurement unit (IMU) and a dual-band, multi-constellation GNSS receiver with dual antenna. It is designed to provide accurate and reliable position, orientation, and heave compensation data, even in harsh marine environments.

Yes, the Ellipse D Marine housing version of the IMU is designed to be robust and resistant to harsh environments. It has an IP68 rating, making it resistant to dust and water. It can operate in a temperature range from -40 °C to 85 °C and withstands shocks of 500 g (0.1 ms) and vibrations of 8 g RMS (20 Hz to 2 kHz per MIL-STD 810G).

The Ellipse D Marine IMU is compatible with multiple global satellite navigation systems for worldwide coverage and improved accuracy. It supports the following signals:

GPS: L1C/A, L2C
GALILEO: E1, E5b
GLONASS: L1OF, L2OF
BEIDOU: B1/B2
It also includes advanced jamming and spoofing mitigation features and is OSNMA-compatible.

The Ellipse-D Marine housing version of the unit has compact dimensions of 46 mm (length) x 45 mm (width) x 32 mm (height). Its weight is 65 g, making it easy to integrate into various marine or embedded systems.

The Ellipse-D Marine IMU can be connected to various external sensors to enhance its navigation accuracy and robustness. Supported aiding inputs include:

GNSS (external receiver)RTCM (correction messages)OdometerDVL (Doppler Velocity Log)External magnetometersAir dataThe integration of these sensors optimizes positioning accuracy, particularly in environments where GNSS signals may be weak or intermittent.

Yes, the SBG Ellipse-D Marine inertial measurement unit (IMU) comes with a 2-year warranty. This warranty covers manufacturing defects and ensures product reliability under normal use conditions.

The Ellipse-D Marine IMU is designed to maintain a robust position even during GNSS signal interruptions. Its sensor fusion algorithm combines inertial data with inputs from other external sensors (such as an odometer or DVL) to improve positioning accuracy in challenging environments (under bridges, in tunnels, in forests, etc.).

In the event of prolonged GNSS outages, position accuracy can be maintained with the following performance levels, provided external aiding inputs are used:

Land application: 0.5% of distance traveledMarine application: 1.0% of distance traveledAerial application: 2.0% of distance traveled

Yes, for post-processing the data and improving the performance of the IMU, Qinertia software is recommended. This post-processing software refines inertial data with raw GNSS observations, providing high-precision positioning and orientation solutions using PPK (Post-Processed Kinematic) and PPP (Precise Point Positioning) technologies. There is also a configuration software for the initial setup of the device.

The Ellipse D Marine IMU is compatible with multiple data output protocols, enabling flexible integration with various systems. The main output protocols include:

NMEA 0183 (binary)REST APITSSKVHDologIt also supports third-party protocols.

The SBG Ellipse-D Marine inertial measurement unit (IMU) requires a DC input voltage between 5 and 36 VDC. Its power consumption is less than 1050 mW. For the Ellipse-D housed version, consumption is less than 900 mW without a GNSS antenna.

Yes, the Ellipse D Marine IMU integrates advanced features to detect and mitigate GNSS signal jamming and spoofing. It provides real-time indicators to alert users to potential interference or signal manipulation. Additionally, it is compatible with the OSNMA (Open Service Navigation Message Authentication) standard, thereby enhancing GNSS data reliability.

For optimal integration and operation of the Ellipse D Marine IMU, SBG Systems offers a range of complementary accessories:

Cables: A variety of high-quality cables is available, including plug-and-play cables for simplified installation, open-ended cables for custom connections, and GNSS antenna cables to ensure optimal signal quality. GNSS Antennas: A selection of high-performance GNSS antennas, tested and validated by SBG Systems, is offered for seamless integration with INS/GNSS products, ensuring reliable positioning and robust signal tracking in various environments.