CAJ | 학술논문

为提高单线阵CCD立靶的测量精度，提出一种基于测量模型的系统参数反演和标定方法。在假设相机镜头的焦距、倾角和主点坐标以及激光器发光点坐标等系统参数已知的情况下，建立相机捕获弹丸影像的中心像元位置、各系统参数以及弹丸着靶坐标之间的函数关系，通过实测的弹丸影像的中心像元位置和弹丸坐标值反求出与系统各参数相关的矩阵模型，而不需要求出具体的系统参数值。在实际测量中，只需根据所求得的矩阵模型和每次测得的目标影像的中心像元位置便可求得弹丸着靶坐标。根据系统测量原理，建立了系统的数学模型和参数标定模型，采用所提反演方法对系统参数进行了标定实验。模拟实弹实验的结果表明，本文方法的坐标测量精度明显优于传统方法。
위제고단선진CCD립파적측량정도，제출일충기우측량모형적계통삼수반연화표정방법。재가설상궤경두적초거、경각화주점좌표이급격광기발광점좌표등계통삼수이지적정황하，건립상궤포획탄환영상적중심상원위치、각계통삼수이급탄환착파좌표지간적함수관계，통과실측적탄환영상적중심상원위치화탄환좌표치반구출여계통각삼수상관적구진모형，이불수요구출구체적계통삼수치。재실제측량중，지수근거소구득적구진모형화매차측득적목표영상적중심상원위치편가구득탄환착파좌표。근거계통측량원리，건립료계통적수학모형화삼수표정모형，채용소제반연방법대계통삼수진행료표정실험。모의실탄실험적결과표명，본문방법적좌표측량정도명현우우전통방법。
In order to improve the accuracy of measurement of single‐linear array CCD vertical tar‐get system ,a reversion and calibration method based on the parameter of systematic measurement model is proposed in this paper .Suppose that the focus ,the camera tilt angle ,the principal point coordinate of the lens and the coordinate of the laser luminous point are given .The functional re‐lationships among central pixel position of the projectile image captured by the camera are estab‐lished ,the system parameters and the projectile coordinates ,and then a matrix model of system parameters ,rather than specific system parameters can be achieved on the basis of actually meas‐ured coordinates of projectile and central pixel position of projectile image .In the condition of practical measurement ,the projectile coordinate can be obtained by means of the matrix model and measured central pixel positions of objective image . T he systemic mathematical model and calibration model have been established on the basis of system measurement principle and then simulation test is done with the method proposed in this paper .The accuracy of measurement for the calibration method proposed in this paper is obviously superior to that of the traditional meth‐od .