Ellipse-N High-performance RTK Inertial Navigation System
Ellipse-N 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. It combines an Inertial Measurement Unit (IMU) with an internal dual band, quad constellation GNSS receiver, using an advanced sensor fusion algorithm to provide accurate positioning and orientation, even in challenging environments.
Discover our INS for dynamic and automotive applications.
Ellipse-N specifications
Motion & Navigation Performance
1.2 m Single point position vertical
1.5 m RTK position horizontal
0.01 m + 1 ppm RTK position vertical
0.02 m + 1 ppm PPK position horizontal
0.01 m + 0.5 ppm * PPK position vertical
0.02 m + 1 ppm * Single point roll/pitch
0.1 ° RTK roll/pitch
0.05 ° PPK roll/pitch
0.03 ° * Single point heading
0.2 ° RTK heading
0.2 ° PPK heading
0.1 ° *
Navigation features
Single and dual GNSS antenna Real time heave accuracy
5 cm or 5 % of swell Real time heave wave period
0 to 20 s Real time heave mode
Automatic adjustment Delayed heave accuracy
2 cm or 2.5 % Delayed heave wave period
0 to 40 s
Motion profiles
Car, automotive, train/railway, truck, two wheelers, heavy machinery, pedestrian, backpack, off road Air
Plane, helicopters, aircraft, UAV Marine
Surface vessels, underwater vehicles, marine survey, marine & harsh marine
GNSS performance
Internal single antenna Frequency band
Dual frequency GNSS features
SBAS, RTK, RAW GPS signals
L1C/A, L2C Galileo signals
E1, E5b Glonass signals
L1OF, L2OF Beidou signals
B1/B2 GNSS time to first fix
< 24 s Jamming & spoofing
Advanced mitigation & indicators, OSNMA ready
Magnetometer performance
50 Gauss Scale factor stability (%)
0.5 % Noise (mGauss)
3 mGauss Bias stability (mGauss)
1 mGauss Resolution (mGauss)
1.5 mGauss Sampling rate (Hz)
100 Hz Bandwidth (Hz)
22 Hz
Environmental specifications & operating range
IP-68 (1 hour at 2 meters) Operating temperature
-40 °C to 85 °C Vibrations
8 g RMS – 20 Hz to 2 kHz Shocks
500 g for 0.1 ms MTBF (computed)
218 000 hours Compliant with
MIL-STD-810
Interfaces
GNSS, RTCM, odometer, DVL, external magnetometer Output protocols
NMEA, Binary sbgECom, TSS, KVH, Dolog Input protocols
NMEA, Novatel, Septentrio, u-blox, PD6, Teledyne Wayfinder, Nortek Output rate
Up to 200Hz Serial ports
RS-232/422 up to 2Mbps: up to 3 inputs/outputs CAN
1x CAN 2.0 A/B, up to 1 Mbps Sync OUT
PPS, trigger up to 200 Hz – 1 output Sync IN
PPS, event marker up to 1 kHz – 2 inputs
Mechanical & electrical specifications
5 to 36 VDC Power consumption
< 750 mW Antenna power
3.0 VDC – max 30 mA per antenna | Gain: 17 – 50 dB Weight (g)
47 g Dimensions (LxWxH)
46 mm x 45 mm x 24 mm
Timing specifications
< 200 ns PTP accuracy
< 1 µs PPS accuracy
< 1 µs (jitter < 1 µs) Drift in dead reckoning
1 ppm
Ellipse-N applications
The Ellipse-N redefines precision and versatility, bringing advanced GNSS-aided inertial navigation to a broad spectrum of applications.
From autonomous vehicles and UAVs to robotics and marine vessels, the Ellipse-N ensures exceptional accuracy, reliability, and real-time performance.
Our expertise covers aerospace, defense, robotics, and more, delivering unmatched quality and dependability to our partners. With the Ellipse-N, we don’t just meet industry standards—we set them.
Discover all Ellipse-N applications.
Compare Ellipse-N with other products
Compare our most advanced inertial range of sensors for navigation, motion, and heave sensing.
Full specifications can be found in the Hardware Manual available upon request.
Ellipse-N |
Ellipse-D |
Ekinox Micro |
Quanta Micro |
|
---|---|---|---|---|
Single point position horizontal | Single point position horizontal 1.2 m | Single point position horizontal 1.2 m | Single point position horizontal 1.2 m | Single point position horizontal 1.2 m |
Single point roll/pitch | Single point roll/pitch 0.1 ° | Single point roll/pitch 0.1 ° | Single point roll/pitch 0.02 ° | Single point roll/pitch 0.03 ° |
Single point heading | Single point heading 0.2 ° | Single point heading 0.2 ° | Single point heading 0.08 ° | Single point heading 0.08 ° |
Datalogger | Datalogger – | Datalogger – | Datalogger 8 GB or 48 h @ 200 Hz | Datalogger 8 GB or 48 h @ 200 Hz |
Ethernet | Ethernet – | Ethernet – | Ethernet Full duplex (10/100 base-T), PTP master clock, NTP, web interface, FTP, REST API | Ethernet Full duplex (10/100 base-T), PTP / NTP, NTRIP, web interface, FTP |
Weight (g) | Weight (g) 47 g | Weight (g) 65 g | Weight (g) 165 g | Weight (g) 38 g |
Dimensions (LxWxH) | Dimensions (LxWxH) 46 mm x 45 mm x 24 mm | Dimensions (LxWxH) 46 mm x 45 mm x 32 mm | Dimensions (LxWxH) 42 mm x 57 mm x 60 mm | Dimensions (LxWxH) 50 mm x 37 mm x 23 mm |
Ellipse-N Compatibility
Ellipse-N documentation & resources
Ellipse-D comes with comprehensive documentation, designed to support users at every step.
From installation guides to advanced configuration and troubleshooting, our clear and detailed manuals ensure smooth integration and operation.
Discover the advanced capabilities of Ellipse-N and learn more by downloading the product leaflet below.
Ellipse Series online documentationThis page contains everything you need in your Ellipse hardware integration.
Ellipse-N aiding sensorsA vast number of aiding sensors can be used to aid and greatly enhance Ellipse-N INS performance. By connecting an odometer or a DVL, you make the Ellipse-N an exceptional choice for autonomous vehicles, offering unparalleled accuracy even in harsh conditions. Learn more about Ellipse-N aiding sensors.
Ellipse-N performance specificationsThis link allows you to have full access to all Ellipse-N sensors and navigation system performance specifications.
Ellipse-N firmware update procedureStay up-to-date with the latest enhancements and features of Ellipse-N by following our comprehensive firmware update procedure. Click the link below to access detailed instructions and ensure your system operates at peak performance.
Ellipse-N production process
Discover the precision and expertise behind every SBG Systems products. This following video offers an inside look at how we meticulously design, manufacture, and test our high-performance inertial navigation systems.
From advanced engineering to rigorous quality control, our production process ensures that each product meets the highest standards of reliability and accuracy.
Watch now to learn more!
Ask for a quotation: Ellipse-N
Ellipse-N FAQ section
Welcome to our FAQ section, where we address your most pressing questions about our cutting-edge technology and its applications.
Here, you’ll find comprehensive answers regarding product features, installation processes, troubleshooting tips, and best practices to maximize your experience with Ellipse-N.
Whether you’re a new user seeking guidance or an experienced professional looking for advanced insights, our FAQs are designed to provide the information you need.
Find Your Answers Here !
Does INS accept inputs from external aiding sensors?
Inertial Navigation Systems from our company accept inputs from external aiding sensors, such as air data sensors, magnetometers, Odometers, DVL and other.
This integration makes the INS highly versatile and reliable, especially in GNSS-denied environments.
These external sensors enhance the overall performance and accuracy of the INS by providing complementary data.
What are jamming and spoofing?
Jamming and spoofing are two types of interference that can significantly affect the reliability and accuracy of satellite-based navigation systems like GNSS.
Jamming refers to the intentional disruption of satellite signals by broadcasting interfering signals on the same frequencies used by GNSS systems. This interference can overwhelm or drown out the legitimate satellite signals, rendering GNSS receivers unable to process the information accurately. Jamming is commonly used in military operations to disrupt the navigation capabilities of adversaries, and it can also affect civilian systems, leading to navigation failures and operational challenges.
Spoofing, on the other hand, involves the transmission of counterfeit signals that mimic genuine GNSS signals. These deceptive signals can mislead GNSS receivers into calculating incorrect positions or times. Spoofing can be used to misdirect or misinform navigation systems, potentially causing vehicles or aircraft to veer off course or providing false location data. Unlike jamming, which merely obstructs signal reception, spoofing actively deceives the receiver by presenting false information as legitimate.
Both jamming and spoofing pose significant threats to the integrity of GNSS-dependent systems, necessitating advanced countermeasures and resilient navigation technologies to ensure reliable operation in contested or challenging environments.
What is a Real Time Clock?
A Real Time Clock (RTC) is an electronic device designed to keep track of the current time and date, even when powered off. Widely utilized in applications requiring precise timekeeping, RTCs serve several key functions.
First, they maintain an accurate count of seconds, minutes, hours, days, months, and years, often incorporating leap year and day-of-week calculations for long-term precision. RTCs operate on low power and can run on battery backup, enabling them to continue keeping time during outages. They also provide timestamps for data entries and logs, ensuring accurate documentation.
Additionally, RTCs can trigger scheduled operations, allowing systems to wake up from low-power states or perform tasks at specified times. They play a crucial role in synchronizing multiple devices, ensuring they operate cohesively.
RTCs are integral in various devices, from computers and industrial equipment to IoT devices, enhancing functionality and ensuring reliable time management across multiple applications.
What is GNSS vs GPS?
GNSS stands for Global Navigation Satellite System and GPS for Global Positioning System. These terms are often used interchangeably, but they refer to different concepts within satellite-based navigation systems.
GNSS is a collective term for all satellite navigation systems, while GPS refers specifically to the U.S. system. It includes multiple systems that provide more comprehensive global coverage, while GPS is just one of those systems.
You get improved accuracy and reliability with GNSS, by integrating data from multiple systems, whereas GPS alone might have limitations depending on satellite availability and environmental conditions.
GNSS represents the broader category of satellite navigation systems, including GPS and other systems, while GPS is a specific GNSS developed by the United States.