压缩感知学习资源
编程实现：
（简单入门）压缩感知正交匹配追踪算法重构二维图像
（专业程序）l1-magic
（OMP算法的Matlab实现）通过正交匹配追踪算法从随机测量值中恢复信号
文献：
（列举很详细）中国压缩传感资源（China Compressive Sensing Resources）
（简单的Review）Compressive Sensing
（SP算法）Subspace pursuit for compressive sensing signal reconstruction http://arxiv.org/pdf/0803.0811.pdf
（OMP算法）Signal recovery from random measurements via orthogonal matching pursuit http://authors.library.caltech.edu/9490/1/TROieeetit07.pdf
（MP算法）Sparse signal detection from incoherent projections http://dsp.rice.edu/sites/dsp.rice.edu/files/cs/IDEA-ICASSP06.pdf
（CoSaMP算法）Cosamp: iterative signal recovery from incomplete and inaccurate samples http://users.cms.caltech.edu/~jtropp/papers/NT10-CoSaMP-Iterative-CACM.pdf
（BAOMP算法）Backtracking-based matching pursuit method for sparse signal reconstruction http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5756222
（SAMP算法）Sparsity adaptive matching pursuit algorithm for practical compressed sensing http://dsp.rice.edu/sites/dsp.rice.edu/files/cs/asilomar08_final.pdf
可能用到的基础知识：
解Ax=b（A为对称正定矩阵）的最速下降法和共轭梯度法
凸函数与凸规划的概念