The qualitative error analysis of the mechanical navigation system was implemented using Taylor series expansion method after introduction of the system characters.

在分析机构导航误差的基础上，提出用泰勒级数展开法对机构导航系统的误差进行定性分析；

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The new method firstly obtains two approximate rotational invariance relations about distributed sources central DOA by the Taylor series expansion of array steering vector.

新方法首先通过阵列方向矢量的泰勒级数展开获得关于分布源中心DOA的两个近似旋转不变关系。

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Simulations showed that the performance of the proposed tracking method was better than the TDOA tracking method and the static location of Taylor series expansion algorithm.

实验证明，该方法的定位误差性能优于单纯的TDOA定位方法及静态定位方法中泰勒级数展开法的误差性能。

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