Ellipse-D: RTK INS with Dual-Antenna GNSS

0.05° Roll/Pitch & 0.2 Heading
 
Ellipse-D belongs to Ellipse series line of miniature, high-performance GNSS-aided inertial navigation systems, designed to deliver reliable orientation, position, and heave in a compact package. Combining an Inertial Measurement Unit (IMU) with an internal dual band, quad constellation GNSS receiver and using an advanced sensor fusion algorithm, Ellipse-D provides accurate positioning and orientation, even in challenging environments. It features dual-antenna heading for applications that require precise and stable heading in static conditions.

Accuracy (RMS):

Roll / Pitch:	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 Performance:

Accuracy:	5 cm or 5% - Valid for Marine Version
Wave Period:	Up to 15 s (Auto-Adjusting)

Inertial GNSS (N & D Models):

Features:	SBAS, RTK, RAW
Signals:	GPS: L1C/A, L2C GLONASS: L1OF, L2OF GALILEO: E1, E5b BEIDOU: B1/B2
Update Rate:	5 Hz
Cold Start / Hot Start:	< 24 s / < 2 s

Pressure Sensor:

Resolution:	1.2 Pa / 10 cm / 0.3 ft
Pressure Accuracy:	± 50 Pa / ± 200 Pa Relative / Absolute

Interfaces:

Available Data:	Euler angles, quaternion, velocity, position, heave, calibrated sensor data, delta angles & velocity, barometric data, status, GPS data, UTC time, GNSS raw data (Post-processing), etc.
Aiding Sensors:	GNSS, Odometer, RTCM
Output Rate:	200 Hz, 1,000 Hz (IMU Data)
Main Serial Interface:	RS-232, RS-422, USB - Up to 921,600 bps
Serial Protocols:	Binary eCom, NMEA, ASCII, TSS
CAN Interface:	CAN 2.0A/B - Up to 1 Mbit/s
Pulses:	Inputs: Events, PPS, DMI (Direction or Quadrature) Outputs: Synchronization (PPS) 2 Inputs / 1 Output

Environmental, Mechanical & Electrical:

Input Voltage:	5 - 36 V
Power Consumption:	D: < 900 mW
Specified Temperature:	-40 to 85 °C
Shock Limit:	500 g
Operating Vibration:	8 g RMS (20 Hz to 2 k Hz per MIL-STD 810G)
MTBF:	50,000 Hours
Size (Box Version):	46 x 45 x 32 mm
Weight (Box Version):	65 g
Size (OEM Version):	29.5 x 25.5 x 16 mm
Weight (OEM Version):	17g

	Ellipse-A	Ellipse-E	Ellipse-N	Ellipse-D
Application	Motion Sensor	INS with your own GNSS receiver	INS for dynamic and automotive applications	INS for low dynamics and robust heading
Heading	Magnetic	Magnetic or GNSS	Magnetic or Mono-antenna GNSS	Dual antenna GNSS
Heave: 5 cm or 5%	✓	✓	✓	✓
Odometer Aiding		Pulse / CAN OBD-II	Pulse / CAN OBD-II	Pulse / CAN OBD-II
Navigation		Navigation with external GNSS receiver	L1/L2 GNSS receiver 1 cm RTK GNSS Accuracy	L1/L2 GNSS receiver 1 cm RTK GNSS Accuracy
Post-Processing		✓	✓	✓

UAV Navigation

Gimbaled Camera

Unmanned Ground Vehicle (UGV)

Instrumented Buoy

Antenna Pointing & SATCON On-The-Move (SOTM)

Unmanned Sea Vehicle (USV)
Ordering options for SBG Systems' Ellipse-D:

SBG Systems | Development Kit that includes antenna(s), ground plane(s), and USB to RS-232 cable,

SBG Systems | Ellipse RS-232 / CAN cable (CA-ELI-RS232-CAN-3M) or Ellipse RS-422 cable (CA-ELI-RS422-3M),

SBG Systems | Ellipse RS-232 / USB cable, and provides power to the Ellipse sensor. (CA-ELI-USB-3M),

Calian | TW8889 Dual Band Antenna.