水下爆炸爆源定位方法与误差分析

A location method for underwater explosion source and error analysis

提出了一种采用最小误差逼近法对水下爆源进行定位计算的方法。通过验证性实验表明,在有效传感器观测数据不小于4个的情况下,该方法完全可以满足现场测量的要求;该方法在个别测量数据准确性较差的情况下,仍能得出较好的计算结果。最后分析了测点数据准确性、测点布置紊乱度、模型参数的准确性和测点数量对计算误差的影响,提出了定位计算实验所需要注意的问题。

Based on the minimum mean-square error approach, a computational method was proposed for locating the positions of underwater explosion sources. The verification experiments show that the proposed location method can meet with the test requirements when the quantity of the effective data observed by the pressure sensors is not less than four. Satisfactory computational results can still be obtained even if the accuracies of several test data are weak. The influencing factors of the computa- tional error were discussed as follows： veracities of test data, position turbulence of test points, accu- racies of model parameters and quantity of test points. Consequently, some suggestions were put for- ward about the location computation for underwater explosion sources.