Spatial Dual

Spatial Dual is a rugged GPS aided inertial navigation system that provides accurate position, velocity, acceleration and orientation under the most demanding conditions. It combines temperature calibrated accelerometers, gyroscopes, magnetometers and a pressure sensor with a dual antenna RTK GNSS receiver. These are coupled in a sophisticated fusion algorithm to deliver accurate and reliable navigation and orientation.


Get a quote

Ask a question

Enter your question in the above form and we'll be in touch as soon as possible


Dual Antenna Heading
Dual Antenna Heading
Spatial Dual features dual antenna moving baseline RTK. This allows it to provide highly accurate heading while both stationary and moving. It is an excellent choice for applications where magnetic heading is not usable due to interference or where additional accuracy is required. An added benefit is the ability to accurately measure vehicle slip angle.
Calibrated Dynamic Ranging Sensors
Calibrated Dynamic Ranging Sensors
Spatial Dual contains very high performance MEMs inertial sensors. These are put through Advanced Navigation's intensive calibration process to increase their performance further still and provide consistently accurate data over an extended temperature range of -40°C to 85°C. Advanced Navigation's custom calibration process is the only full sensor calibration that can provide dynamic ranging, allowing the user to select a sensor range for high accuracy or high accelerations on the fly. As part of this calibration, every GPS aided inertial navigation system spends 8 hours in our specially built rotating temperature chamber.
RTK GNSS Receiver
RTK GNSS Receiver
Spatial Dual contains a triple frequency Trimble RTK GNSS receiver that provides up to 8mm accuracy positioning and supports all of the current and future satellite navigation systems, including GPS, GLONASS, GALILEO and BeiDou. It also supports the Omnistar service for hassle free high accuracy positioning.
Advanced Filter
Advanced Filter
Spatial Dual contains Advanced Navigation's revolutionary sensor fusion filter. The filter is more intelligent than the typical extended kalman filter and is able to extract significantly more information from the data by making use of human inspired artificial intelligence. It was designed for control applications and has a high level of health monitoring and instability prevention to ensure stable and reliable data.
Miniature Rugged Enclosure
Miniature Rugged Enclosure
Spatial Dual's precision marine grade aluminium enclosure is waterproof and dirtproof to the IP67 standard and shockproof to 2000g, allowing it to be used in the most extreme conditions. A sophisticated venting system allows the unit to measure air pressure whilst keeping water out. Its minimal size, weight and power requirements allow for easy integration into almost any system.
Hot Start
Hot Start
Spatial Dual contains a next generation battery backup system that allows it to hot start inertial navigation from its last position in 500 milliseconds and obtain a GNSS fix in approximately 3 seconds. The battery backup system lasts for the lifetime of the product and will provide backup for 48 hours without power. Advanced Navigation's Spatial series are the only GNSS/INS in the world to provide hot start inertial navigation.
Spatial Dual has been designed from the ground up for mission critical control applications where reliability is very important. It is built on top of a safety oriented real time operating system and all software is designed and tested to safety standards with fault tolerance in mind. The hardware is protected from reverse polarity, overvoltage, surges, static and short circuits on all external interfaces. The GNSS contains RAIM, which excludes both malfunctioning, and tampered satellite signals.
Spatial Dual features four general purpose input output pins that support an extensive number of peripherals. Including odometer and wheel encoder inputs for ground vehicles, external RTK GPS systems, NMEA input/output, event triggers and more. For an integration fee, custom peripheral devices can be added.


Marine Surveying
Marine Surveying
Spatial Dual is very popular in marine surveying applications, providing all the reference data required in a single unit. Its heading is more accurate than high end gyrocompasses costing ten times the price and is continuously reliable unlike GPS compass systems. It features a revolutionary tightly coupled heave filter that provides heave accuracy surpassing most FOG systems. It also supports kinematic post processing with Advanced Navigation's Kinematica post processing software for maximum accuracy results.
Land Surveying
Land Surveying
Spatial Dual's high accuracy roll, pitch and heading make it well suited for surveying applications. It supports RTK which allows it to provide dramatically enhanced positioning accuracy over standard GPS with positioning accuracy of 8mm. The system supports connection of a high resolution wheel speed sensor or odometer which allows it to maintain accurate data through GPS outages and continue surveys through tunnels and other areas where GPS signals are not available. It also supports kinematic post processing with Advanced Navigation's Kinematica post processing software.
Spatial Dual is ideal for use in helicopters where high levels of magnetic interference make magnetic heading unusable. In this application, single antenna GNSS/INS systems can have issues resolving the heading due to the 3D movement and stationary hovering of the platform. Spatial Dual is able to provide very high accuracy heading under all conditions whether stationary or moving and through all levels of magnetic interference.
Antenna Targeting
Antenna Targeting
In both stationary and moving antenna applications, Spatial Dual provides a high accuracy source of roll, pitch and heading that is ideal for antenna targetting control. Its ability to provide continuously reliable data through extended GPS outages and interference means that systems can maintain very high uptimes.
Spatial Dual is an excellent tool for performance measurement in motorsport. From the velocity and orientation data, slip, oversteer and understeer can be calculated. The velocity and acceleration data can be used to calculate improvements to braking and accelerating. Position can be used to determine the deviation from the optimum track position. Spatial Dual’s high vibration tolerance and dynamic range means there are no concerns about engine or road vibration. Spatial Dual also supports data output to data acquisition systems such as Dewesoft products.
Spatial Dual’s accurate orientation data allows for stabilization of robotic systems and its position, velocity and acceleration data can be used for robot navigation. Spatial Dual’s high update rate allows it to control dynamically unstable platforms and its focus on safety and reliability provides for piece of mind.


Horizontal Position Accuracy 1.2 m
Vertical Position Accuracy 2.0 m
Horizontal Position Accuracy
0.5 m
Vertical Position Accuracy
0.8 m
Horizontal Position Accuracy
(with RTK or Kinematica PPK)
0.008 m
Vertical Position Accuracy
(with RTK or Kinematica PPK)
0.015 m
Velocity Accuracy 0.007 m/s
Roll & Pitch Accuracy 0.1 °
Heading Accuracy
(1m Antenna Separation)
0.1 °
Roll & Pitch Accuracy
(Kinematica Post Processing)
0.03 °
Heading Accuracy
(Kinematica Post Processing)
0.06 °
Slip Accuracy 0.1 °
Heave Accuracy 5 % or 0.05 m
(whichever is greater)
Hot Start Time 500 ms
Internal Filter Rate 1000 Hz
Output Data Rate Up to 1000 Hz
Sensor Accelerometers Gyroscopes Magnetometers Pressure
±2 g
±4 g
±16 g
±250 °/s
±500 °/s
±2000 °/s
±2 G
±4 G
±8 G
10 to 120 KPa
Bias Instability 20 ug 3 °/hr - 10 Pa
Initial Bias < 5 mg < 0.2 °/s - < 100 Pa
Initial Scaling Error < 0.06 % < 0.04 % < 0.07 % -
Scale Factor Stability < 0.06 % < 0.05 % < 0.09 % -
Non-linearity < 0.05 % < 0.05 % < 0.08 % -
Cross-axis Alignment Error < 0.05 ° < 0.05 ° < 0.05 ° -
Noise Density 100 ug/√Hz 0.004 °/s/√Hz 210 uG/√Hz 0.56 Pa/√Hz
Bandwidth 400 Hz 400 Hz 110 Hz 50 Hz
Model Trimble BD992
Supported Navigation Systems GPS L1, L2, L5
BeiDou B1, B2
Supported SBAS Systems WAAS
Omnistar HP/XP/G2
Trimble RTX
Update Rate 20 Hz
Hot Start First Fix 3 s
Cold Start First Fix 30 s
Horizontal Position Accuracy 1.2 m
Horizontal Position Accuracy
(with SBAS)
0.5 m
Horizontal Position Accuracy
(with RTK)
0.008 m
Velocity Accuracy 0.007 m/s
Timing Accuracy 20 ns
Acceleration Limit 11 g
Interface RS232 or RS422
Speed 4800 to 2M baud
Protocol AN Packet Protocol or NMEA
Peripheral Interface 2x GPIO and 1x Auxiliary RS232
GPIO Level 5 V or RS232
GPIO Functions 1PPS
Pitot Tube
NMEA input/output
Novatel GNSS input
Trimble GNSS input
AN Packet Protocol input/output
Packet Trigger Input
Event Input
Operating Voltage 9 to 36 V
Input Protection -40 to 100 V
Power Consumption
2.64 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 85 °C
Environmental Protection IP67
MTBF > 50,000 hrs
Shock Limit 75 g
Dimensions 90x127x33 mm
Weight 285 grams


Download / Link
Spatial Dual Datasheet
Spatial Dual Reference Manual
Spatial Dual 3D Model
Spatial Dual 3D Model


Spatial Dual Manager V5.6 (Windows, Mac & Linux)
Spatial Dual Manager is the software provided for testing, configuration and logging with Spatial Dual. Please see the Spatial Dual reference manual for more information. Java is required to run this program.
Release date
9 September, 2020
Spatial Dual SDK V4.1
The Spatial Dual SDK provides example source code for interfacing with Spatial Dual through the AN Packet Protocol. The languages provided are C/C++, Java, and .Net C#.
Release date
7 May, 2019
Spatial Dual Firmware V3.5
The firmware for all hardware versions of Spatial Dual. This can be loaded onto Spatial Dual using the Spatial Dual Manager software. The changelog can be found in the Spatial Dual reference manual.
Release date
25 March, 2021