Precise attitude determination

ANavS attitude determination systems provide an ultra-precise orientation information. Our systems can be used for both static and kinematic applications, e.g. for navigation, for aligning objects or for determining their orientation. ANavS attitude determination system can be operated globally without the need of a reference station or any other infrastructure.
Each system includes two ANavS sensor modules, an ANavS processing module with our ultra-precise attitude determination software, and an optional visualization module. We also offer licenses for our real-time and post-processing attitude determination software.

Attitude determination

Hardware configuration

ANavS sensor modules have a very small size and weight. The size of the GNSS-only modules corresponds to a match box and the size of the GNSS/ INS sensor modules corresponds to a credit card. We are using low-cost patch antennas, which also have a much smaller size and weight than conventional geodetic antennas. Our multi-sensor modules include a GNSS receiver, a GNSS antenna, an inertial sensor, a bluetooth module, and a bluetooth antenna. Thus, the system is completely wire-free except for the power connection.

We are offering the following hardware configurations for a wide range of applications:


Static attitude determination
Kinematic attitude determination
With internet connection
Without internet connection
Static attitude
Kinematic attitude

Sensors on board

GNSS sensor      
Inertial sensor      

Data link sensor module ↔ processing module

USB connection      
Bluetooth connection      

Output interface type

Serial (USB)       
Wireless (Wi-Fi)      

GPS antenna integration

On-board antenna      
External antenna      

Power supply of sensor module

Internal battery-powered      
External power source (USB)      

Data output rate

Moderate (5 Hz)      
High (100 Hz)      

 Precise attitude determination software

ANavS attitude determination software provides the heading with an accuracy of 0.25° for an antenna spacing of 1 m. We provide a carrier phase fixed solution within less than 60 s and with an ultra-high reliability of at least 99 %. Our software is based on ANavS patented algorithms for receiver synchronization, reliable ambiguity resolution, cycle slip correction, and precise carrier phase positioning. We also estimate the code multipath for each satellite to obtain an accurate attitude also with low-cost patch antennas. Our efficient Kalman filter implementation has only very low memory and processing power requirements.

Product specs

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