Filter functions for computing multipole moments from the magnetic field normal to a plane

Alvarez R.E.

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Filter functions for computing multipole moments from the magnetic field normal to a plane

机译：滤波器功能，用于计算垂直于平面磁场的多极矩

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A technique for calculating the magnetostatic multipole moments (and therefore complete biomagnetic information) from measurements of the normal component of the magnetic field on a plane is described. The technique involves multiplying the measured values by a set of unique filtering functions and integrating. A new formulation and method for calculating the filtering functions is introduced. The method uses expansions in basis sets and matrix inversion. Proofs are given of the nonsingularity of the matrices. Computer simulations of the application of the technique to a circular current loop and a current dipole in a spherical conductor are described.

机译：描述了一种用于通过在平面上测量磁场的法向分量来计算静磁多极矩（从而获得完整的生物磁信息）的技术。该技术涉及将测量值乘以一组独特的滤波函数并进行积分。介绍了一种计算滤波函数的新公式和方法。该方法使用基集扩展和矩阵求逆。证明了矩阵的非奇异性。描述了将该技术应用于球形导体中的圆形电流环路和电流偶极子的计算机模拟。

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《IEEE Transactions on Medical Imaging》 |1991年第3期|P.375-381|共7页
作者
Alvarez R.E.;
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正文语种 eng
中图分类无线电电子学、电信技术;
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Filter functions for computing multipole moments from the magnetic field normal to a plane

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