Boreas D70 & D90

The Boreas D70 and D90 Series is a rugged inertial navigation system with a north-seeking gyrocompass that maintains reliable navigation in GPS-denied and harsh environments and a lower SWaP-C (Size, Weight, Power and Cost).

D70

D90

Roll & Pitch

0.01 °

0.005 °

Heading (Gyrocompass)

0.1 ° seclat

0.01 ° seclat

Bias Instability

0.01 °/hr

0.001 °/hr

Position Accuracy

10 mm

10 mm

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D70 Datasheet

D90 Datasheet

The Boreas D Series provides north-seeking gyrocompassing for accurate heading and orientation, even in GNSS-denied environments. The D70-X20P & D90-X20P add an all-band GNSS receiver. The D70-MX5 & D90-MX5 add a multi-band GNSS receiver. The D70-MX5 & D90-MX5 are electronic protection variants that add resilience against GNSS jamming and spoofing.

Features

Applications

Specifications

Downloads

Features

FOG Technology

The Boreas fiber optic gyroscope (FOG) is a highly accurate and reliable navigation technology. It’s the result of over 25 years of development in partnership with two research institutions. The gyroscope uses a closed-loop optical coil and an advanced spread-spectrum digital modulation technique to improve accuracy, stability, and reliability while reducing size, weight, power, and cost.

Gyrocompass North-Seeking

The Boreas range of FOGs can determine heading without needing a Global Navigation Satellite System (GNSS) or a magnetometer. By sensing the Earth’s rotation, the system’s north-seeking algorithm can acquire an accurate heading. This is possible in static and dynamic conditions, even at high latitudes.

Reliability

Boreas D70 & D90  has been designed from the ground up for rugged reliability. Both the hardware and software are tested and certified to environmental and electromagnetic standards (MIL-STD 461 and MIL-STD 810H). The precision aluminum enclosure is waterproof and dustproof to the IP67 standard. The system is resilient to shock and vibration, allowing it to be used in extreme conditions.

Industry-Leading SWaP-C

The Boreas FOG Series delivers industry-leading performance with a lightweight design, excelling in terms of Size, Weight, Power, and Cost (SWaP-C).

Multi Protocol Support

The Boreas features multiple interfaces, including Ethernet, CAN, RS232, 1PPS, RS422, and GPIOs. It supports industry standard protocols, including NMEA 0183, CANopen, 1PPS, and ANPP, as well as a wide variety of proprietary protocols. A rich, responsive embedded web interface provides full access to all of the device’s internal functions and data. Internal storage allows for up to one year of data logging.

Applications

Marine Surveying
Land Surveying
Antenna Targeting
ROV/AUV Navigation

Specifications

Roll & Pitch Accuracy | D90
0.005 °
Roll & Pitch Accuracy | D70
0.01 °
Heading Accuracy (without GNSS) | D90
0.01 ° secant latitude
Heading Accuracy (without GNSS) | D70
0.1 ° secant latitude
Gyrocompass Coarse Alignment (without GNSS)
2 minutes
Horizontal Position Accuracy (RTK or PPK)
0.01 m
Vertical Position Accuracy (RTK or PPK)
0.015 m
Horizontal Position Accuracy (SBAS)
0.5 m
Vertical Position Accuracy (SBAS)
0.8 m
Velocity Accuracy
0.005 m/s
Heave Accuracy
2 % or 0.02 m (whichever is greater)
Output Rate
1000 Hz

Accelerometers

Range
± 15 g
Bias Instability
7 ug
Initial Bias
< 100 ug
Initial Scaling Error
340 ppm
Scale Factor Stability | D90
100 ppm
Scale Factor Stability | D70
150 ppm
Non-linearity
150 ppm
Cross-axis Alignment Error
< 0.001 °
Noise Density | D90
30 ug/√Hz
Noise Density | D70
40 ug/√Hz
Random Walk | D90
17 mm/s/√hr VRW
Random Walk | D70
23 mm/s/√hr VRW
Bandwidth
300 Hz

Gyroscopes

Range
± 490 °/s
Bias Instability (D90)
0.001 °/hr
Bias Instability (D70)
0.01 °/hr
Initial Bias (D90)
< 0.01 °/hr
Initial Bias (D70)
< 0.05 °/hr
Initial Scaling Error (D90)
80 ppm
Initial Scaling Error (D70)
100 ppm
Scale Factor Stability (D90)
10 ppm
Scale Factor Stability (D70)
20 ppm
Non-linearity
10 ppm
Cross-axis Alignment Error
< 0.001 °
Noise Density (D90)
0.06 °/hr/√Hz
Noise Density (D70)
0.3 °/hr/√Hz
Random Walk (D90)
0.001 °/√h ARW
Random Walk (D70)
0.005 °/√h ARW
Bandwidth
400 Hz

Pressure

Range
10 to 130 kPa
Bias Instability
8 Pa
Initial Bias
< 50 Pa
Noise Density
0.4 Pa/√Hz
Bandwidth
50 Hz

Supported Navigation Systems
X20P
GPS L1C/A, L2C, L5 • Galileo E1-B/C, E5a, E6 • BeiDou B1I, B1C, B2a, B3I • QZSS L1 C/A, L2C, L5 • NavIC (IRNSS) L5-SPS • GLONASS L1, L2
MX5
GPS L1C/A, L1PY, L2C, L2P(Y), L5 • Galileo E1, E5a, E5b, E5 AltBoc, E6 • BeiDou B1I, B1C, B2a, B2I, B2b, B3I • QZSS L1C/A, L1 C/B, L2C, L5 • NavIC (IRNSS) L5 • GLONASS L1CA, L2CA, L2P, L3 CDMA
Supported SBAS Systems
X20P
EGNOS, WAAS, GAGAN, MSAS, QZSS
MX5
EGNOS, WAAS, GAGAN, MSAS, QZSS, SDCM
Max Update Rate
X20P
25 Hz
MX5
100 Hz
Signal Re-aquisition First Fix
X20P
2 s
MX5
1 s
Cold Start First Fix
X20P
25 s
MX5
< 45 s
Horizontal Position Accuracy
X20P
1.2 m
MX5
1.2 m
Horizontal Position Accuracy (with SBAS)
X20P
0.6 m
MX5
0.6 m
Horizontal Position Accuracy (with RTK)
X20P
0.006 m + 1 ppm
MX5
0.006 m + 0.5 ppm
Velocity Accuracy
X20P
0.05 m/s
MX5
0.03 m/s
Timing Accuracy
X20P
20 ns
MX5
< 20 ns
Acceleration Limit
X20P
≤ 4 g
MX5
–
Reference Inputs
X20P
RTCM v3.x
MX5
RTCM v2.x, v3.x

Interface
Ethernet • RS232/RS422 • CAN • 1PPS
Speed
100Mbit • 4800 to 4M baud serial
Protocol
AN Packet Protocol • NMEA • CANopen
Peripheral Interface
2x GPIO • 1x Auxiliary RS232
GPIO Level
5 V (RS232) • 3.3 V
GPIO Functions
1PPS input/output • Odometer input • DVL/USBL input • Air Data input • Zero Velocity input • NMEA input/output • Novatel GNSS input • Trimble GNSS input • AN Packet Protocol • CAN/CANopen

Operating Voltage
9 to 36 V
Input Protection
-200 to 200 V
Power Consumption (Typical)
12 W
Hot Start Battery Capacity
> 48 hrs
Hot Start Battery Charge Time
30 mins
Hot Start Battery Endurance
> 10 years
Operating Temperature
-40 °C to 75 °C
Environmental Protection
IP67 • MIL-STD-810H
MTBF
> 70,000 hrs
Shock Limit
50 g 11 ms
Vibration
8g rms (20-2000 Hz random)
Dimensions
160 x 140 x 115.5 mm
Weight
2.8 kg

Downloads

Datasheet D90

Version 1.80

Oct 2025

View Online

Datasheet D70

Version 1.50

Oct 2025

View Online

Reference Manual D70 & D90

Online Version

View Online

Version 2.3

04 Dec 2025

View Online

3D Model

Version 1.2

25 Sep 2024

Download

Boreas D90 Performance Evaluation

Version 1.1

Nov 2023

Download

INS Manager – Desktop

Version 8.0

04 Dec 2025

Download

INS Manager – Deskop is used for testing, configuration, firmware management and logging with Advanced Navigation’s INS devices.  Java 11 is required to run INS Manager – Desktop. Adoptium JRE 11 is the recommended Java installer. Refer to respective INS Manuals for the user guide.

Boreas D70 Firmware

Version 2.05

11 Dec 2025

Download

Firmware for Boreas D70 hardware versions. This can be loaded onto Boreas using the web interface or the Boreas Manager software. The change log can be found in the Boreas reference manual.

Boreas D90 Firmware

Version 2.05

11 Dec 2025

Download

Firmware for Boreas D90 hardware versions. This can be loaded onto Boreas using the web interface or the Boreas Manager software. The change log can be found in the Boreas reference manual.

Boreas SDK

Version 7.3

28 Aug 2024

Download

The Boreas SDK provides example source code for interfacing with Boreas through the AN Packet Protocol. The languages provided are C/C++, Java, and .Net C#.

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