LBP(Linear Back Projection) method which is used in multiphase tomography is adopted to deal with ill matrix and speed up reconstruction.

进而借助于多相流电容成象中的LBP法，处理病态矩阵和提高建象速度。

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A novel recursive subspace method is developed based on fixed length moving window (FLMW) projection approximation used for estimating the modal parameter of linear time-varying structural system.

给出了一个新的用于线性时变参数结构系统模态参数识别的基于固定长度平移窗投影估计的递推子空间方法。

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The one-dimension projection algorithm, which is the steepest descent method, based on residual space for solving linear equations is analyzed in this paper.

分析了基于残差空间求解线性方程组的一维投影算法、最速下降法和最小剩余法。

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