摘要
为了解决光电经纬仪电视跟踪系统脱靶量滞后对控制系统跟踪精度及稳定性的影响,将预测滤波技术应用到光电跟踪系统中.提出了极坐标下卡尔曼滤波算法,目标模型采用等速运动并附有时间相关的随机加速度,增加了延时补偿.仿真结果表明,跟踪误差减小,当跟踪目标从视场消失时,控制系统按照预测的目标信息跟踪.
In a photoelectric theodolite, the time delay of TV miss distance has an influence on stability and tracking accuracy of the control system. Prediction filtering technique is applied to solve this problem. Kalman filter is designed in polar coordinates. The target model is based constant velocity and a random acceleration. Compensation for time delay is augmented in Kalman filtering algorithm. The simulation results show that tracking errors are reduced and tracking control system can also track the target according to the predicting information when target is lost.
出处
《测试技术学报》
2003年第4期324-328,共5页
Journal of Test and Measurement Technology
基金
信息产业部项目(2000021-03)
