Introduction - If you have any usage issues, please Google them yourself
1) football.m simply displays a graph in a rray
2) pre.m is the process of normalized preprocessing of heart sound signal filtering
3) wavlet.m is a db6 wavelet for signal decomposition and reconstruction, and to find the envelope energy function
4) path.m is the path tracking method using KKT condition, which is used to solve the quadratic programming problem.
5) LRmmse is a commonly used detection method in MIMO communication, combining the knowledge of minimum mean square error criterion and lattice protocol.