该算法基于子空间分解技术，利用信号子空间和噪声子空间的正交性将两者分离。
The algorithm is based on the subspace decomposition technique. The signal subspace is separates from the noise subspace by making use of the orthogonality between them.
ESPRIT算法是一种用信号旋转不变性来估计信号参数的方法，属于子空间分解技术。
ESPRIT is a signal parameter estimation method using rotational invariance approaches, which is a subspace decomposing technique.
分析了已有空间分解技术和包围盒方法等的优缺点，并在此基础上提出了改进的空间分解求交方法。
The authors analyzed the advantages and disadvantages of the existing space division technology and bounding boxes method, and then proposed an improved space division algorithm.
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