无线视频射击训练系统中击发信号采集与识别  

Acquisition and Recognition of Firing Signal in the Wireless Video Shooting Training System

作　　者：张伯虎[1] 

机构地区：[1]武警工程大学信息工程系,陕西西安710086

出　　处：《武警工程大学学报》2015年第2期36-39,共4页Journal of Engineering University of the Chinese People＇s Armed Police Force

摘　　要：为提高无线视频射击训练系统中枪械击发信号采集与识别的准确性，在对声音以及振动波同时采集的基础上，利用振动波在枪体与在空气中两种不同介质中传播速度的不同来获取时间差，使击发信号特征具有了唯一性。同时，利用声音的传播特性，修正了在不同射击训练环境下温湿度对音速的影响，确定了合理的时间差值范围，进一步利用时间差阈值判定信号来标记锁定射击训练中击发瞬间的图像信号，结合内置合成电子“十字线”，确定训练人员的射击训练效果。实验表明提高了视频图像射击训练系统的准确性和有效性。for promoting the accuraly of the gun firing signal acquisition and recognition of wireless video shooting training system, by collecting the sound and vibration wave at the same time and using the different speed in two different medium which is in the gun and air to acquire different time difference, the firing signal characteristic as made to be of uniqueness. At the same time the sound propagation properties have modified the effect of temperature and humidity on the speed of sound in different shooting training environment, and have determined a reasonable time difference range,then the time difference threshold value signal is used to mark instantaneous image signal in shooting training and the training effect of the trainee is determined by the built-in synthetic electronic ＂cross＂. Experiments show that the accuracy and effectiveness of video shooting training system has been largely improved.

关 键 词：击发采集 音速 传播特性 时间差值 温湿度修正 

分 类 号：G237.5[文化科学]