立体五元十字阵定位算法与精度分析

为提高立体阵中俯仰角的定向精度，对立体五元十字阵的基本定位算法进行了推导。以往文献中常用正弦值来计算俯仰角大小，但这种方法不能同时反映2个结构尺寸参数对俯仰角精度的影响。针对这一情况，在俯仰角的计算上采用正切值。经过与传统平面五元十字阵的定向精度进行比较，发现用正切值来表示俯仰角，不但能更加精确地描述影响俯仰角精度的各种因素，同时此法表示的俯仰角在精度上也较正弦值表示法高。立体五元十字阵的定向性能较好，具有较好的工程应用价值。

Location Algorithm and Precision Analyzing of Solid Five-Element Cross Array

In order to improve the directional accuracy of the pitch angle of solid array,the localization equations of an acoustic array using solid five-element are derived.Previously used to calculate the elevation angle with sine,but this method is not conducive to describe the influences of both the two structure dimension parameters on the accuracy of elevation angle.Aiming at the situation,on the elevation angle calculate use the tangent value.Compared the localization ability with the traditional planar five-e...