水下弹道声外测与惯性组合内测的比对试验  

Comparison experiment between acoustic and inertial measurements of depth charge trajectory

作　　者：邓秀华[1] 

机构地区：[1]f中国船舶重工集团公司第710研究所,湖北宜昌443003

出　　处：《声学技术》2013年第4期286-289,共4页Technical Acoustics

摘　　要：深弹下潜攻击弹道的测试可以采用声外测和惯性测量组合内测的方法,可根据不同的使用环境和需求进行选择,而水下声外测的动态测试精度一般难以验证。提出采用坐标转换和对时同步,将声外测得到的弹道轨迹和惯组内测得到的弹道轨迹统一到同一大地坐标系,选取相同的时间点,对测量结果进行比对,完成声外测对深弹水下运动轨迹跟踪定位精度的验证。简要介绍了试验方案和数据处理方法,给出了比对实例,比较了两种弹道测试方法给出的水下运动目标位移、速度及下滑角度,结果表明,所提出的比对方法是可行和有效的。Acoustic tracking and inertial unit measurement are all the methods which can be used for trajectory mea- surements of depth charge. Selecting which method is used depends on the specific conditions and needs, but the ac- curacy of acoustic tracking is generally hard to be validated. This paper presents how to test and verify the measuring accuracy of acoustic tracking to moving targets. The uniform reference flame for both acoustic tracking and inertial unit measurement is proposed by using coordinate transformation and time synchronization. The accuracy of acoustic tracking can be well validated through the comparison measurements of the two methods. The scheme of experiment and the method of data processing are given with an example, and the compared items include displacement, velocity and angle of the moving target. Experimental results indicate that the way of comparing acoustic and inertial mea- surements described in this paper is feasible and available.

关 键 词：深弹 弹道 声外测 内测 比对试验 

分 类 号：TB556[理学—物理]