Algorithm research of target acquisition for TV tracking system based on Sliding Mode Control

Target acquisition algorithm based on Sliding Mode Control (SMC) is proposed for TV tracking system. Target acquisition capability and performance are both improved, attributing to overcoming the deficiencies of traditional linear control. In this paper, sliding surface with variable coefficient and continuous control law without switching is introduced in the SMC controller design. The improved SMC shows better performance compared to basic SMC, and full-field acquisition with rapid response and non-overshoot is achieved. The simulation of acquisition shows that, the system can acquire a target passing through the view field of 1.53° in the width with an uniform speed of 15 °/s, while the whole process is in a short settling time and chattering-free, and the reaching segment has no overshoot.