基于双靶面的火炮动态稳定精度测试方法  

Artillery dynamic stability precision test method based on dual-target

作　　者：李静[1] 王军政[1] 汪首坤[1] 汪正军[1] 

机构地区：[1]北京理工大学自动化学院复杂系统智能控制与决策实验室,北京100081

出　　处：《仪器仪表学报》2010年第10期2328-2333,共6页Chinese Journal of Scientific Instrument

基　　金：985项目(1010012047201);北京市产学研科研基金(1010013020105)资助项目

摘　　要：提出了一种火炮动态稳定精度测试方法,由平行固定在火炮炮管上的激光器发出光斑,高速CCD作为测试元件,分别对前后双靶面上形成的光斑成像实时采集、计算,通过得到的2个靶面上光斑实际坐标相减消除了不影响火炮射击精度的炮管平移量,从而测得准确的火炮动态稳定精度。同时,提出了基于均值迁移的光斑中心实时跟踪算法和采集系统标定方法。经实际测试结果表明,所提测试方法合理,研制的装置测试精度达到21.6″,测试周期不大于10ms,完全满足自行火炮动态稳定精度测试需要。This paper presents a new test approach of artillery dynamic stability precision, a laser fixed on the artillery pipe in parallel sends out a light beam and forms light spots on two targets, a CCD camera is used as the measuring element to collect the images of the two light spots, and then real time calculation is performed. Through subtraction of the coordinates of the two light spots on the targets, the translation of the artillery pipe is eliminated; and the actual stability precision is obtained. At the same time, an algorithm for finding and tracking the center of the light spot based on mean shift is proposed. And a new image calibration method that transforms image coordinates into real coordinates is introduced. Experiment results show that the proposed test method is reasonable, the test accuracy of the developed equipment reaches 21.6″, and the test cycle is less than 10 ms, which fully satisfies the test requirements of dynamic stability precision of self-propelled artillery.

关 键 词：动态稳定精度 双靶面 平移量 偏转角度 

分 类 号：TN386.5[电子电信—物理电子学]