Precise position determination

ANavS position determination systems provide a position information with centimeter-level accuracy. Our systems can be used for both static and kinematic applications, i.e. for surveying, for construction engineering, for environmental monitoring, for autonomous driving of vehicles, for navigation of ships in harbours and narrow watergates, for precise docking, for precise positioning in sports or any other application with the need of a precise position information.

Position derermination

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:

Legend:

Static RTK-based positioning
Kinematic RTK-based positioning
Local area coverage
Global coverage
 
Static RTK positioning
Kinematic RTK positioning
 
local coverage
(<100m)
global coverage
(>100m)
local coverage
(<100m)
global coverage
(>100m)

Sensor configuration

GNSS sensor        
Inertial sensor        
Barometer        

Reference station type

ANavS reference station module        
Virtual Reference Station        

Data output rate

Moderate (5 Hz)        
High (100 Hz)        

Internet connection on processing module

Internet connection
required
       

Data link sensor module ↔ processing module

Serial (USB) connection        
Bluetooth connection        

Output interface type

Serial (USB)         
I²C/UART/SPI        
LAN/Ethernet        
Wireless (Wi-Fi)        
Bluetooth        
Internet-based        

GPS antenna integration

On-board antenna        
External antenna        

Power supply of sensor module

Internal battery-powered        
External power source (USB)        
Extended power level
(3 V – 24 V)
       

 Precise position determination software

ANavS RTK software provides a centimeter-level positioning accuracy. We perform a tightly coupled sensor fusion with an extended Kalman filter and resolve the carrier phase integer ambiguities.

Our software is based on ANavS patented algorithms for receiver synchronization, reliable ambiguity resolution, cycle slip correction,  precise carrier phase positioning and tight coupling. We also estimate the code multipath for each satellite to obtain an accurate position information 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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