在此基础上较详细地阐述了计算展开系数的方法以及在程序研制中所遇到的一些问题。

Then the numerical techniques for calculations of the expansion coefficients and the program problem are discussed in detail.

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通过在平面波谱域中比较复射线束叠加场和标准解的方法，导出了球面波和柱面波的复射线束展开系数公式。

In this article, we derive complex expansion formula of spherical and cylindrical waves by comparing the stacking field of complex ray and the close-form solution in the plane spectral domain.

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SENSE 重建算法通过计算重叠位置的线圈灵敏度系数，将多个线圈得到的有重叠伪影的图像进行展开，得到一幅全-FOV 的无重叠的图像。

SENSE reconstruction algorithms can unfold the superposed voxels and combine into a full FOV image by the calculation of the coil sensitivity with the body coil reference scan data.

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