.h文件。c++中的复数类，能够直接完成基本四则运算，输入输出流，完成一定范围内的比较运算-. H file. c++ classes in the plural, to directly perform basic arithmetic, input and output streams, to complete a range of comparison operators

Spatially multiplexing several data streams onto the MIMO channel,the rank of the matrix H and with full rank.