在关联成像中广泛存在的算法，涉及到DGI、GI等算法，这些算法均是线性算法，没有超分辨能力，但是抗造能力比较强，比较通用。(The widely existing algorithms in related imaging involve DGI, GI and other algorithms. These algorithms are linear algorithms without super-resolution, but they have relatively strong ant