光电经纬仪的高精度电视自动跟踪

High-precision TV auto-tracking system of photoelectric theodolite

为了精密跟踪速度快、加速度大的被测目标,采用双闭环控制策略,及速度滞后补偿和加速度滞后补偿技术,设计了光电经纬仪电视自动跟踪系统。在跟踪以最大速度50(°)/s、最大加速度30(°)/s2运动的目标时,达到了最大跟踪误差小于80″的精度。并从原理、仿真及实验上证明了速度滞后补偿和加速度滞后补偿技术能够显著提高跟踪精度。

We designed a TV auto-tracking system of photoelectric theodolite for taking high-precision tracking of the targets with rapid velocity and high acceleration. We utilized the technique of velocity lag compensation, acceleration lag compensation and double dosed loop control system in the design. In tracking of a moving target with the maximum angular velocity as 50°/s , and maximum angular acceleration as 30°/s2, the maximum tracking error is smaller than 80＂. We proved that the techniques of velocity lag compensation and acceleration lag compensation can reduce tracking error remarkably from the principle, by simulation and experiment.