摘要
根据空气动力学基本原理,超音速弹丸在空气中飞行时致使周围的空气发生压缩和膨胀产生激波信号,基于激波特性,建立了脱靶量模型。本文提出通过首遇传感器时间差来求取脱靶量,采用声学传感器对弹丸激波采集,解决了强背景噪声的滤除、传感器振荡信号动态剪除及电磁兼容等难题,提高了N波采集精度和可靠性。系统首次实现了多种弹丸射击时的脱靶距离和脱靶方位的实时测量及射击单位和弹种的自动识别。应用表明,系统战技指标先进。
The aerodynamic theory shows that the shock-wave of flying super-sonic projectile is generated for the projectile compressing and expending its ambient atmosphere. The paper establishes miss distance models based on physical characteristic of shock-wave. It advances getting miss distance according to interval of the first sensors, and applies acoustic sensors to catch shock-wave, to solve the problem such as noise filtering on severe background, signals of amplifier vibration dynamic disposal and electromagnetism compatibility, in order to improve the precision and reliability of gathering wave N signal. For the first time, it can identify the kinds of pills and firing units automatically, measure miss distance and azimuth when pills are firing. Application shows that the tactics and technique index is excellent.
出处
《电子测量技术》
2007年第2期155-157,共3页
Electronic Measurement Technology
基金
省部级基金(BZ-2005-0052)资助项目
关键词
声靶
弹丸激波
弹着点
传感器
CPLD
acoustic target
projectile shock-wave
impact point
sensor
CPLD
