实现四路复用程序。通过walsh正交码的复用技术，matlab仿真-achieve multiplexing process. Walsh orthogonal codes through the Reuse, Matlab simulation

the codes which i sent contains matlab code for encryption using 4 out of 8 code,binary to decimal conversion,decimal to binary conversion,subband coding,upsampling.

These MATLAB-based computer codes are made available to the remote sensing community with no restrictions. Users may download them and use them as they see fit. The codes are intended as educational tools with limited ranges of applicabilit