关键词: 三轴, 跟踪系统, 跟踪性能, 车载平台, 优化

Abstract:

With a redundant heeling-axis,the three-axis photoelectric tracking system can avoid the spatial blind region of the two-axis tracking system,and track the target in the whole space.By using the quaternion method,the kinematical model of the vehicular three-axis photoelectric tracking system is built based on the movement analysis of the system.Then a hybrid optimization is designed for the tracking strategy of the vehicular three-axis linkage tracking system.Through the analysis of the kinematical model,the relationship of the three axes' angles can be obtained.Then three-variable optimization of the three axes angular increments can be simplified as the optimization of signal-variable,and the optimal angular increments are calculated by using the hybrid optimization method.The simulation and experimental results show that this tracking strategy could improve the tracking performance of system and is of great practical value,which tracks the target with smaller tracking angular increments,and the system can realize three-axis linkage continuous tracking movement in the whole space.

Key words: hree axes;tracking system;tracking performance;vehicular platform;optimization