ADAS:
GNSS / IMU
GNSS (Global Navigation Satellite System) and IMU (Inertial Measurement Unit) are two complementary technologies that can be used together to provide accurate and reliable position, velocity, and orientation information.
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ADAS SYSTEMS
VEHICLE TO VEHICLE
GNSS / IMU
GNSS (Global Navigation Satellite System) and IMU (Inertial Measurement Unit) are two complementary technologies that can be used together to provide accurate and reliable position, velocity, and orientation information.
GNSS (Global Navigation Satellite System) works by receiving signals from satellites orbiting the Earth. These signals contain information about the satellite's position and time. The GNSS receiver uses this information to calculate its own position and velocity.
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GNSS permits to obtain a global coverage.
Examples of GNSS include Europe’s Galileo, the USA’s NAVSTAR Global Positioning System (GPS), Russia’s Global'naya Navigatsionnaya Sputnikovaya Sistema (GLONASS) and China’s BeiDou Navigation Satellite System.
IMUs work by measuring the acceleration and angular velocity of the device they are attached to. This information can be used to calculate the device's position, velocity, and orientation using a process called dead reckoning.
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Some applications where GNSS/IMU systems are applied:
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Automotive navigation
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Autonomous vehicles
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Aviation
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Surveying and mapping
Applications of GNSS/IMU systems in the automotive industry:
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Navigation
GNSS/IMU systems are used to provide accurate and reliable navigation information for cars, trucks, and other vehicles. This is essential for both traditional navigation systems and for
autonomous vehicles.
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Advanced driver assistance systems (ADAS)
GNSS/IMU systems are used in a variety of ADAS features, such as adaptive cruise control, lane departure warning, and automatic emergency braking. These systems use GNSS/IMU data to track the vehicle's position, velocity, and orientation, and to identify potential risks on the road.
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Autonomous driving
By the using of these systems, it is possible to ensure a safe and efficient navigation in autonomous vehicles, because the systems combination they provide to the vehicle continuous position, velocity, and orientation information, even when GNSS signals are blocked or unavailable.
GNSS/IMU Applications in the aerospace industry:
Navigation
These systems are used to provide accurate and reliable navigation information for aircraft, spacecraft, and other aerospace vehicles.
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Guidance and control
GNSS/IMU systems are used in guidance and control systems for aircraft, spacecraft, and other aerospace vehicles. These systems use GNSS/IMU data to help the vehicle navigate to its destination and to maintain its desired attitude and heading.
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Attitude and heading reference systems (AHRS)
AHRS systems using the GNSS and IMU systems in order to provide to aerospace vehicles accurate information about their attitude and heading. This information is essential for a variety of flight and navigation functions.
Flight control systems
GNSS/IMU systems are used in flight control systems to help aerospace vehicles to maintain their desired flight path. These systems use GNSS/IMU data to provide feedback to the autopilot or other flight control system.
