Identification Of Theodolite Tracking Gimbal

Now the gimbal servo system of opto-electronic tracking measure system adopts computer control method at large, which not only helps to accomplish named new control arithmetic algorithm but also make system identification conveniently. The dissertation is about the identification of its controlled model and its resonant frequency point by the direct use of computer control system of the tracking gimbal from engineering application aspect.The dissertation makes theoretic analysis for tracking gimbal servo system at first and establishes the mathematical model, mechanical resonant frequency mode and range of the frequency; then analyses the possible arisen interference in the experiment, finds the solving way and educes theoretic result from simulation experiments by computer; gets the specific parameters value in the way of identification algorithm combining with experiments, establishes the mathematical model of system and confirms its resonant frequency point at last. Through comparing the output of real system with model, the veracity of the model is approved. In addition, the abilities of precisely and quickly modelling, anti-jamming in the means of the correlation identification method verify high values for engineering.