Ellipse-D

Dual Antenna RTK INS/GNSS

Ellipse-D is the smallest Inertial Navigation System with integrated Dual-antenna RTK GNSS receiver for accurate Heading. It provides Roll, Pitch, Heading, Heave, and Navigation data.

SBG Systems

Carrières-sur-Seine, FR

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Description

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 Roll, Pitch, Heading, Heave, and Navigation data. Ellipse-D includes a MEMS-based Inertial Measurement Unit (IMU) and runs an enhanced Extended Kalman Filter (EKF) which fuses inertial and GNSS data. Odometer and DGPS can be used as aiding inputs to further enhance the navigation solution.

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Specifications

Other specifications: Graphical user interface

Y

Typical application

UAV-based Mapping, Boat & Buoy Motion Monitoring, Car Motion Monitoring, Antenna Tracking

Distinguishable features

Ellipse-D has been designed to offer a compact and cost-effective solution when accurate heading is required. The dual antenna heading overcomes typical magnetic calibration issues and allows the Ellipse-D to be used in applications where the magnetic field is not reliable. This model integrates a Survey-grade L1/L2 GNSS receiver with two antennas for unmatched heading and position accuracy.

Export restrictions

ITAR Free

Environmental: Operating shock tolerance [g]

16

Max. rotation speed [deg/s]

450

Min. operating temperature [°C]

-40

Max. operating temperature [°C]

85

Non-operating shock tolerance [g]

2000

Software: Filtering

Y

Name

SBG Center

GNSS aided uncertainty: Heading [deg]

0.2

Pitch [deg]

0.05

Roll [deg]

0.05

Heave: constant part [m]

0.05

Heave: variable part [%]

5

General: Year of initial development

2014

Height [m]

0.031

Width [m]

0.067

Length [m]

0.087

Weight [kg]

0.065

Min. Voltage (DC)

5

Max. Voltage (DC)

36

Power consumption [W]

0.9

Splashproof casting

Y

Water resistant casting

Y

Mean time between failures [hr]

50000

Type of accelerometer

MEMS

Type of gyro

MEMS

Type of application

Air, Land, Marine

Removable from base plate

N

Moving parts

N

Height [mm]

32

Width [mm]

45

Length [mm]

46

GNSS Positioning Sensor: Number of integrated GNSS receivers and antenna ports

2

No. channels p receiver

448

Tracked satellite signals

GPS L1, GPS L2, GPS L2C, GLONASS L1, GLONASS L2, Galileo E1 B/C, Galileo E5B, Beidou B1, Beidou B2

SBAS differential signals

Y

RTK Network Compatibility

Y

Update rate [ Hz ]

200

Cold start [ seconds ]

24

Hot start [ seconds ]

2

Data formats: NMEA formats

GGA, RMC, HDT, ZDA, VTG

RTCM

Y

Other

TSS1, sbgEcom

Inertial Measurement Unit: Accelerometer bias [µ-g]

14

gyro bias [deg/hr]

7

Calibration procedure

Factory Calibrated from -40 to 70°

GNSS positional accuracy: Horizontal Position Accuracy [ RMS in cm ]

120

Horizontal Position Accuracy (SBAS) [ RMS in cm ]

60

Horizontal Position Accuracy (RTK) [ RMS in cm ]

1