This a C program to implement haar wavelet transform on a 2 dimensional matrix. this code also uses targa.h which i will upload soon. thank you.-This is a C program to implement haar wavelet transform on a 2 dimensional matrix. this code also uses ta

LDPC编码中的BP算法，已知校验阵H,先验证是否有4环，并实现随机生成信息序列编码并解码。-BP LDPC coding algorithm, known check matrix H, first verify whether there are four rings, and to achieve a randomly generated sequence information encoding and decoding.

FastCSMatrix: The operator form of the contraint matrix for the fast compressed sensing problem. Specifically, it returns y = A*x (mode = 1) or y = A *x (mode = 2), where A is an mxn matrix given by A = [Phi - Phi], and Phi = P*H*Q, where P,Q are r