HomeADMA GNSS/inertial systemADMA-G: Pro+/ Eco+/ Eco for Automotive/Railway

ADMA-G: GNSS/Inertial System for vehicle dynamics testing

ADMA stands for Automotive Dynamic Motion Analyzer. This acronym refers to our highly precise Inertial Measurement Unit (IMU) using DGNSS (Differential Global Navigation Satellite System). The system was developed particularly for Vehicle Dynamics Testing in the automotive sector. Our ADMA system allows for constant measurement of acceleration, speed and position of moving vehicles in all three dimensional axes. Pitch, roll and course angles can be continuously and precisely measured with ADMA as well as course and side-slip angles as well as angular rates.

This makes GeneSys ADMA system the best choice where challenging measurements with maximum accuracies are required.

Technical data of ADMA-G-PRO+, ADMA-G-ECO+, and ADMA-G-ECO can be found in the tables below or in the datasheet.


At a glance

ADMA Applications

The strap-down technology ensures that the ADMA is stable and resistant to unwanted vibration during use. This means the ADMA is very well suited for evaluation of Vehicle Dynamics and Driver Assistance Systems. The ADMA system is successfully used for Motorsports, Driver-less Systems, and Construction Machines. It is proven itself in the areas of Route, Track Wear, and Railway measurements.

ADMA Features

  • Measurement of vehicle motion in three axes, even during GNSS signal loss
  • Dynamic attitude and heading angle determination
  • Precise acceleration, speed, and position data due to extended Kalman filter
  • Precise position data with integrated WAAS/EGNOS-DGNSS receiver (<1m)
  • High precision position data (1 cm) with internal RTK2 DGNSS receiver and GNSS Base Station
  • Robust inertial sensors and strap-down technology without moving parts

ADMA Highlights

  • Data output rate up to 1000 Hz
  • Data output via 5 CAN bus interfaces and Ethernet
  • Configuration via Ethernet
  • Forwarding of GNSS correction data and relative data calculation (e.g. distance) via WiFi in real-time for multi-vehicle operation
  • GNSS synchronized DAQ synchronization signal, the high clock frequency
  • Inputs for the recording of analog signals
  • The output of GNSS raw data via Ethernet interface
  • Indoor GNSS interface
  • Dual GNSS antenna option
  • Data latency < 1 ms
  • Compatible with all common steering and driving robots

Our products for any requirements

The ADMA models differ in the performance of the applied inertial sensors. Higher precision sensors are less sensitive to GNSS interferences or outages. All models are available with variable GNSS accuracy, ranging from simple L1 receivers with meter accuracy to L1/L2 RTK receivers with centimeter accuracy. Our gyro systems do not require an export license.

ADMA-options – extending capabilities

The new generation of ADMA3 devices now allows our customers to meet their new and changing needs. Our focus is on straightforward use and increased productivity. The add-on functions can be activated quickly and conveniently by entering a license key. This is possible at any time without modifications to the hardware. A high degree of flexibility is thus ensured.

Overview ADMA-Options and Add-Ons

Technical data


GNSS constellationsGPS L1, L2
BeiDou*1 B1, B2
Galileo*1 E1, E5
Dual antennaOptional
Position accuracy (1σ)*20.01 / 0.20 / 0.60 / 1.20 / 1.50 m
Angle Measurement range roll / pitch / yaw60 ° / 60 ° / ± 180 °
Angle Measurement accuracy roll & pitch (1 σ) / yaw (1 σ) / sideslip (RMS)0.01 / 0.015 / 0.05 °
Angle resolution0.005 °
Velocity accuracy (RMS)*30.03 km/h
Position error after 10 / 30 / 60 sec
GNSS outage (RMS)*3
0.1 / 0.6 / 2.0 m
Velocity error after 10 / 30 / 60 sec
GNSS outage (RMS)*3
0.01 / 0.03 / 0.06 m/sec
Roll / Pitch angle error after 10 / 30 / 60 sec
GNSS outage (RMS)*3
< 0.01 / 0.01 / 0.01 °
Heading angle error after 10 / 30 / 60 sec
GNSS outage (RMS)*3
< 0.01 / 0.01 / 0.01 °
Braking distance accuracy without RTK2 (RMS)*30.05 m
Data output rate50 / 100 / 200 / 250 / 500 Hz / (1000 Hz)*1
Calculation latency1 msec
Sensor Technology3 closed-loop fiber optic gyros
Measurement range± 327 °/s
Data output resolution0.0001 °/s
Bias repeatability typ. (1 σ)6 °/h (0.0017 °/s), optional 1 °/h (0.00028 °/s)
In-run-bias typically0.1 °/h
Noise (random walk) typ.0.047 °/√h
Scale factor 0.05 %
Sensor bandwidth3200 Hz
Sensor Technology3 servo accelerometers
Measurement range± 5 g / (± 10 g)*1
Data output resolution0.0001 g
Bias repeatability typ.< 1.0 mg
In-run-bias typ. (1 σ)10 µg 
Noise (random walk) typ.< 50 µg /√Hz
Scale factor (1 σ)0.015%
Sensor bandwidth1500 Hz
Ethernet2x 1 GBit
Data input/output, configuration and firmware
update, driving robot data output, optional for
relative data calculation and DGNSS routing.
1x 100 MBit GNSS Receiver; GNSS firmware update
CAN1x CAN, 5x CAN*1, 2b, 1 Mbit
Data output, input*1
Serial1x RS232 GNSS Receiver; DGNSS correction data input
1x RS232 GNSS Receiver; GPGGA Log output,
IPS (Indoor Positioning System)
Digital/Analog Input4x Digital / Analog (16 bit) e.g. Frequency, Brake trigger, …
1x Digital / Analog (16 bit) external velocity X
Digital Output4x Digital  TTL e.g. PPS, Frequency, PPD Pulse per distance, …
Connector typeLemo
GNSS Antenna connectors
Ordering Variants
Internal Memoryup to 64 GB
Power supply9 to 32 VDC typ. 30 W
Dimensions (W x L x H)110 x 170 x 197 mm
Weight3.6 kg
Operating temperature-20 to +60 °C
*1 Optional

*2 Depending on GNSS conditions, correction data and license model

*3 Typical values according to internal test standards with settled Kalman filter.