Development of Optical Sighting System for Moving Target Tracking

In this study, we developed an optical sighting system capable of shooting at a long-distance target by operating a digital gyro mirror composed of a gyro sensor and an FSM. The optical sighting system consists of a reticle part, a digital gyro mirror (FSM), a parallax correction lens, a reticle-ray reflection mirror, and a partial reflection window. In order to obtain the optimal volume and to calculate the leading angle range according to the driving angle of the FSM, a calculation program using Euler rotation angles and a three-dimensional reflection matrix was developed. With this program we have confirmed that the horizontal leading angle of the developed optical sighting system can be implemented under about +/- 8 degrees for the maximum horizontal driving angle (beta=+/- 12.5 degrees) of the current FSM. Also, if the beta horizontal driving angle of the FSM is under about +/- 15.5 degrees, it can be confirmed that the horizontal direction leading angle can be under +/- 10.0 degrees. If diagonal leading angles are allowed, we confirmed that we can achieve a diagonal leading angle of +/- 10.0 degrees with a vertical driving angle alpha of +/- 7.1 degrees and horizontal driving angle beta of +/- 12.5 degrees.