压缩感知中贪婪迭代算法，可以进行DOA估计和频率普估计-Greed iteration algorithm in the compressed perception, can estimate the DOA estimation and frequency

改进的基于节点度的影响最大化算法，度打折是指，每一次迭代时，度的值会根据种子节点而发生变化。-Improved based on node degree maximization algorithm, and the influence of the degree of discount means that each iteration, the degree of value will change according to the seed node