提高距离准测率的激光轴同步偏转控制技术

Laser axis sync deflection control technology of improving range accuracy

针对手动跟踪设备激光测距机对空中运动目标距离准测率低而难以建立目标航路的问题,提出了一种激光轴同步偏转控制技术。用摄像机摄取目标图像,并由图像处理器求出跟踪误差,控制测距机中的某些小型零部件偏转,同步改变激光发射和接收光轴,有效补偿跟踪误差,以达到提高距离准测率的目的。详述了激光发射和接收光轴变化的原理和计算方法以及激光发射与接收轴同步偏转控制技术的原理和实现方法,分析了使用该技术对跟踪仪性能的影响,介绍了室内台架试验和室外跟踪试验的试验情况,并由试验结果得出了在手动跟踪设备采用本技术后距离准测率可明显得到提高的结论,具有较高的应用和推广价值。

The range accuracy of laser rangefinder（LRF） on capturing air moving target in manual tracking equipment is very low,so it is difficult to found target air route. In order to solve the problem,a laser axis sync deflection control technology（LASDCT） is proposed. The target image is taken with camera,and then the tracking error is calculated with image processor,some small parts of the LRF are controled to deflect,so the laser sending and receiving optical axis are changed synchronously,and the tracking error is compensated effectively. Owing to these operations,the range accuracy is improved. The principle and calculation method of laser sending and receiving optical axis variation are described,and the principle and implementation method of LASDCT are also described. The influence on tracker performance by this technique is analysed. Indoor bench test and outdoor tracking test are given. The test results show that if this technology is applied in manual tracking equipment,the range accuracy can improve obviously. This technology is worth utilization and generalization.