AHRS (Attitude and Heading Reference System), commonly known as the Attitude Reference System, provides aircraft with accurate and reliable attitude and navigation information such as roll, pitch and heading. The product consists of an acceleration sensor, a gyroscope, and a magnetic force sensor. The Kalman filter is generally used as a multi-sensor data fusion unit for the attitude calculation. AHRS originated from aircraft related technology, but in recent years it has been widely used in motor vehicles and drones, industrial equipment, camera and antenna heads, ground and underwater equipment, virtual reality, life movements as device costs continue to decrease. Scientific analysis, indoor positioning and other fields require products for 3D attitude measurement.
Figure 1 Schematic diagram of the Attitude Reference System (AHRS) application
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