针对天幕靶存在不能全天候测试的缺点,文中以点状阵列激光为发射光源,两列二极管作为接收器件,设计了一套激光复合光幕靶测速系统。与普通的光幕靶测速系统相比,该系统可以实现对同一位置弹丸速度的两次测量。且利用CPLD实现对蚊虫、飞鸟,冲击波等干扰信号的剔除。经实弹测试,结果表明:该系统精度高、抗干扰能力强,且与天幕靶相比,不依赖自然光,受外界自然环境影响较小。满足靶场测试要求。

multiple laser screen system dot array laser as emissive source and two columns of diode as receiving device. This system disadvantages of sky-screen which could not work for a whole day. Compared with ordinary light screen, the system not only measure velocity twice in the same position but also wipe off disturbances of mosquitoes, flyers, impulse waves etc. by applying CPLD. According tests, the results manifest that precision of the system high and capability of anti-interference good, which rarely affected by external environment and independent of natural light in comparison with sky screen. It can meet the requirements of shooting range test.