Supported by the National Natural Science Foundation of China(No.61071144,61271012,61121002,10990013)
The Landweber scheme is a method for algebraic image reconstructions. The convergence behavior of the Landweber scheme is of both theoretical and practical importance. Using the diagonalization of matrix, we derive a ...
The Shannon sampling theorem is one of the foundations for modern signal processing.Assume that a signal f(t)∈L^2(R).σ〉0 is a constant.Signal f(t) is calledσ-band-limitedif |ω|〉σ,F(ω) = f_(-∞)~∞f...
supported by the National Natural Science Foundation of China(No.60772041 and 61071144)
A class of piecewise smooth functions in R2 is considered. The propagation law of the Radon transform of the function is derived. The singularities inversion formula of the Radon transform is derived from the propagat...