【摘要】 提出采用高速录像,利用武器射击过程中火焰出现的频率与射击频率一致的特点,引入自适应时频分析方法估计自动武器的射频,同时建模分析了多联武器齐射的枪口火焰序列图像信号的射频特性,该方法是一种非接触射频检测方法,可以初步实现非平稳武器射频的非接触适时检测分析.通过对转管机枪的射频检测试验表明该方法是可行的.更多还原

【Abstract】 Supported by the same periodicity between the gun’s fire and firing,a new way of firing rate measurement is built based on the image sequences recorded by the high-speed video while the gun is firing and the adaptive time-frequency analysis is adopted to estimate the gun’s firing rate.It is a non-contact measurement and can be initially used to measure the gun’s unstable firing rate on line.At the same time,a mathematic model has been established for the gun with connected barrels to describe the relations between image signal frequency and the firing rate.The test of Gatling gun shows that the method is feasible.更多还原