Аннотация:
We propose a numerical solution of reconstruction problem of 2-tensor field in a unit disk from its known values of the ray transforms. The algorithm is based on the method of truncated singular value decomposition. Numerical simulations demonstrate an efficiency of the proposed approach. In addition, we compare proposed algorithm with an algorithm based on the least squares method where we use a finite basis consisting of $B$-splines as basis functions.
Ключевые слова:2-tensor tomography, solenoidal field, potential field, approximation, ray transforms, truncated singular value decomposition, orthogonal polynomials, least squares method, $B$-splines.
Поступила30 марта 2015 г., опубликована 9 сентября 2015 г.