Reconstructed Potential Functions in Bounded Domain Vector Tomography

نویسندگان

  • Nael F. Osman
  • Jerry L. Prince
چکیده

The tomographic imaging of vector elds on bounded domains is considered. Reconstruction formulas for the probe transform are rst shown to be valid on bounded domains. It is then shown that potential functions reconstructed from these formulas include a component that arises from the harmonic component of the vector eld, which is due to boundary conditions alone. Closed form expressions for the harmonic eld contribution to the reconstructed scalar and vector potential functions are derived. The harmonic component is not imaged equally into the irrotational and solenoidal elds, as had been previously speculated, but contributes unequally as a function of both the boundary shape and the vector eld values deened on the boundary.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Reconstruction of Vector Fields in Bounded Domain Vector Tomography

This paper considers the problem of vector tomography on an arbitrary bounded domain in three dimensions. Previous work has given the formulas for the reconstructed scalar and vector potential functions in relation to the vector eld values inside the domain and on the boundary of the domain. Using these formulas, It is shown in this work that the curl-free component can be reconstructed using o...

متن کامل

3-D Vector Tomography on Bounded Domains

This paper considers the problem of vector tomography on an arbitrary bounded domain in three dimensions. The probe transform of a vector eld is the inner product of the Radon transform of a vector eld with a unit vector, called the probe, which may be a function of the projection orientation. Previous work has given reconstruction formulas for arbitrary elds and for those known to be divergenc...

متن کامل

2D Analytical Modeling of Magnetic Vector Potential in Surface Mounted and Surface Inset Permanent Magnet Machines

A 2D analytical method for magnetic vector potential calculation in inner rotor surface mounted and surface inset permanent magnet machines considering slotting effects, magnetization orientation and winding layout has been proposed in this paper. The analytical method is based on the resolution of Laplace and Poisson equations as well as Maxwell equation in quasi- Cartesian coordinate by using...

متن کامل

Overcoming the ill-posedness through discretization in vector tomography: Reconstruction of irrotational vector fields

Vector tomography methods intend to reconstruct and visualize vector fields in restricted domains by measuring line integrals of projections of these vector fields. Here, we deal with the reconstruction of irrotational vector functions from boundary measurements. As the majority of inverse problems, vector field recovery is an ill posed in the continuous domain and therefore further assumptions...

متن کامل

Tomographic Reconstruction of the Ionospheric Electron Density in term of Wavelets

Ionospheric tomography is a method to investigate the ionospheric electron density in two or three dimensions. In this study, the function-based tomographic technique has been used for regional reconstruction of a 3D tomographic model of the ionospheric electron density using the GPS measurements of the Iranian Permanent GPS Network. Two-dimensional Haar wavelets and empirical orthogonal functi...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1997