Glossary
Attitude in navigation
In navigation, attitude refers to the orientation of a vehicle or object relative to a fixed frame of reference, which is typically defined by three rotational axes: pitch, roll, and yaw.
Go to full definitionAHRS – Attitude and Heading Reference System
Attitude & Heading Reference System (AHRS) is a crucial technology in modern aviation and maritime navigation. It provides essential information about an aircraft or vessel’s orientation and heading, ensuring safe and accurate navigation. What is an attitude & heading reference system (AHRS)? The Attitude & Heading Reference System (AHRS) is an integrated system that provides […]
Go to full definitionIMU – Inertial Measurement Unit
Inertial Measurement Units (IMU) are fundamental components in modern navigation and motion tracking systems. An Inertial Measurement Unit (IMU) is an electronic device that measures and reports a body’s specific force, angular rate, and sometimes the magnetic field surrounding the body, using a combination of accelerometers, gyroscopes, and sometimes magnetometers. IMUs are critical for tracking […]
Go to full definitionRTK – Real Time Kinematic
RTK, or Real Time Kinematics, is a sophisticated positioning technology used to achieve high-precision GNSS location data in real-time.
Go to full definitionRTCM – Radio Technical Commission for Maritime Services
RTCM (Radio Technical Commission for Maritime Services) is an international organization that develops standards to improve communication, navigation, and related systems for maritime safety and efficiency.
Go to full definitionGeoreferencing
Georeferencing is the process of aligning spatial data, such as maps, aerial imagery, or scanned documents, to a specific coordinate system so that it accurately corresponds to real-world locations.
Go to full definitionReference station
A reference station is a fixed, high-precision location equipped with a GNSS receiver and antenna that collects positioning data to improve location data accuracy
Go to full definitionDead reckoning navigation
Dead reckoning is a navigation technique used to determine one's current position by using a previously known position and calculating the course based on speed, time, and direction traveled.
Go to full definitionITAR – International Traffic in Arms Regulations
The International Traffic in Arms Regulations (ITAR) are a set of U.S. government regulations that control the export and import of defense articles and services, including both physical items and technical data related to military use.
Go to full definitionMultisensor fusion
Multisensor fusion is a critical component in the environmental perception systems of driverless vehicles, enhancing safety and decision-making capabilities. By integrating data from various sensors such as cameras, LiDAR, radar, and ultrasonic devices, these systems can achieve a more comprehensive and accurate global positioning accuracy and overall system performance in different scenarios. What are the […]
Go to full definitionMagnetic field
A magnetic field is a physical field that represents the magnetic influence on electric currents, moving charges, and magnetic materials. The Earth behaves like a giant magnet and it generates its own magnetic field that goes from South to North pole. Poles are not exactly aligned with the geographic North-South axis. Earth Magnetic Field and […]
Go to full definitionVibrations
Vibrations can introduce unwanted noise or distortions into the measurements because MEMS sensors are highly sensitive to external forces. The effects include: SBG design against vibrations SBG Systems has designed inertial sensors with a special care on signal processing, using only high quality MEMS sensors, combined with efficient anti-aliasing FIR filters to limit vibration issues. […]
Go to full definitionPPK – Post Processing Kinematic
Post-Processing Kinematic is a GNSS data processing method used to achieve high-accuracy positioning by correcting errors in the raw positioning data. It is widely used in applications where precise geospatial information is critical, such as surveying, mapping, and UAV operations. SBG Systems has developed an in-house GNSS Post-Processing solution to enhance its inertial navigation systems’ […]
Go to full definitionMotion compensation and position
Motion compensation and position refers to the ability of a system, typically involving sensors or devices, to adjust or compensate for movement or motion in order to maintain accurate positional information.
Go to full definitionROS drivers
The Robot Operating System (ROS) is a set of software libraries and tools that help you build robot applications. From drivers to state-of-the-art algorithms, and with powerful developer tools, ROS has what you need for your next robotics project. And it’s all open source.
Go to full definitionHeading method
In navigation, heading refers to the direction in which a vehicle or vessel is pointed relative to a reference direction, typically true north or magnetic north. It is expressed in degrees, ranging from 0° to 360°, with 0° (or 360°) indicating true north. Heading is distinct from the course, which is the actual path over […]
Go to full definitionVBS – Virtual Base Station
A Virtual Base Station (VBS) is a GNSS processing technique designed to enhance positioning accuracy in real-time kinematic (RTK) and post-processing applications. Instead of relying on a single, fixed physical base station, a VBS generates a virtual reference station near the rover’s location. This approach reduces positioning errors caused by atmospheric disturbances and improves overall […]
Go to full definitionVRS – Virtual Reference Station
A Virtual Reference Station (VRS) is a simulated GNSS reference point designed to enhance real-time positioning accuracy. By leveraging data from a network of continuously operating reference stations (CORS), VRS creates a localized correction signal, reducing spatial errors and improving RTK (Real-Time Kinematic) precision. This allows users to achieve centimeter-level accuracy as if a reference […]
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