室内大靶面光电立靶技术研究

Research on large area photoelectric target for indoor environment

针对目前已应用的测量弹着点坐标的光电靶存在靶面小、不适用于大弹径弹丸测量的问题。采用平行点激光光束形成10m×10m的大靶面光栅光幕立靶,以FPGA构成数据采集系统,通过计算机上位机坐标识别软件,得到弹着点坐标,并提出了提高大靶面系统灵敏度和测量准确度的措施。室内靶场实弹测量实验结果表明,该方案满足室内测量弹着点坐标的测量准确度。

The intensity test of target is one of basic items for ballistic tests, and the bullet location measurement is a prerequisite for computing-intensity. The surface of photoelectric target currently used is too small to measure the large diameter of bullet. In order to meet the requirements of high-frequency of shoot and large diameter of bullet, the parallel laser beam is used to forro a large target surface of 10 m × 10 m. The data acquisition system is constructed with FPGA, and the upper computer software can measure the bullet location. Some measures are proposed to improve the sensitivity and accuracy of the system. The experimental results obtained in the shooting gallery show that the accuracy of the proposed system can meet the actual demands.