CCD立靶坐标测量系统捕获率研究

Research on Acquirement Rate of CCD Vertical Target Coordinate Measurement System

介绍了CCD立靶坐标测量系统的坐标测量原理及其目标光学成像特性.在此基础之上从目标特性、相机特性和视频处理能力三方面研究了影响CCD立靶坐标测量系统捕获率的因素,提出了弱化不利因素影响的措施和提高系统捕获率的方法.这些因素在4m×4m的立靶的设计中已被充分考虑,在其后的上千发实弹测试实验中,系统对5.8mm直径的目标捕获率测试达到了95%以上,对大于5.8mm直径的目标捕获率测试达到了更高标准.实验证明这些方法对于提高系统捕获率是非常有效的.

The coordinate measurement principle and target imaging characteristic of CCD vertical target coordinate measurement system are introduced. The factors influencing the acquirement rate of the system are researched based on target characteristic, camera characteristic and video processing ability. Some methods are introduced to decrease the influence of disadvantageous factors and increase the acquirement rate of the system. These factors are taken into account in the design of the 4 m × 4 m coordinate measurement system. After thousands of test, the system achieveds a acquirement rate of 95% about 5.8 mm target and a higher acquirement rate than 95 % about bigger target.