用Matlab实现的后向投影算法，一个经典的投影算法，常用语CT断层成像中-After using Matlab implementation of the algorithm to the projection, the projection of a classical algorithm, commonly used terms in CT tomography

基于matlab的平行束滤波反投影重建算法-Based on parallel beam filtered backprojection reconstruction algorithm matlab

学习反向投影算法的SAR成像论文，介绍的非常详细，能够根据内容编写出程序来(A good thesis for study of backprojection algorithm in synthetic aperture radar imaging. One can program with matlab from the descr iption in this thesis)