Estimation Algorithm for Angle and Velocity of Grip end in Golf Swing by using an Acceleration Sensor and Gyro Sensor

This paper describes a novel method for analyzing the angular motion and speed of a golf swing in a global coordinate system measured by a 3D acceleration sensor and a 3D gyro sensor at the grip end of a golf club. The conventional method for measuring motion in sports is optical Direct Linear Transformation (DLT). However, this method requires infrared high-speed cameras to be set in the test field and infrared reflectors to be attached to the moving object. Furthermore, the system and its fine-tuning are expensive. In this paper, we propose an alternative method that is more easily set and fine-tuned, and is also cheaper than the DLT method. The result