【摘要】 在兵器试验中,确定实验靶弹的落点是一项非常重要的工作.提出一种水上靶弹落点定位技术,研究了基于到时测量的多传感器水上落点空气声和水声联合被动定位方法,并对定位误差进行了分析和数值仿真.该方法从传感器测得的目标落水信号到时得出目标落点位置测量方程,根据空气声和水声多个传感器得到的目标落水到时数据计算目标落点在水面的准确位置.研究结果表明,该落点定位方法是可行的,空气声和水声联合定位提高了定位精度,有一定的实用价值,可直接用于地面落点目标的定位.更多还原

【Abstract】 The now generally used method for locating the bomb impact points on water surface is,in our opinion,still not quite satisfactory.We propose a new method of bomb impact points locating with many sensors distributed on water surface and underwater,which is based on the time difference of arrival of acoustic signal.Through the new method,the result of time difference of arrival gained from two sensors is considered as the parameters of the target location.Based on the time difference of arrival,the location of the impact points was calculated by air measured results and underwater measured results.In our simulation research,we took a certain impact point.The locating error of our new method is smaller than that of the now generally used method.更多还原