摘要
超音速弹丸在大气中飞行时,会在弹丸的头部形成一个圆锥形脱体激波。利用超声传感器测出T型阵列传感器,接收到声波时的相对时间差,建立一种基于开放式T靶的任意角入射定位数学模型;并通过迭代求出弹丸穿过靶面的精确位置,以实现弹丸的自动定位。
It will come into being the coniform shock waves in the warhead when the ultrasonic bullet flies in the atmosphere,ultrasonic sensors collect ultrasonic information and receive the relative time difference.According to the above principle a new mathematical model of at arbitrary incidence based on the opened T-Shape target is given,and calculated the precise location by iteration method to realize the automatic positioning of the bullet.
出处
《科学技术与工程》
北大核心
2013年第29期8751-8754,共4页
Science Technology and Engineering
关键词
声学定位
T靶
任意角入射
超声传感器
acoustic localization
T-shape target
arbitrary incidence
ultrasonic sensor
