说明：  应用于低压电力线载波通信的OFDM系统仿真，采用了压缩感知的方法进行信道估计，采用了不同的导频数目，可以讨论系统效率的提升，仿真效果良好。
(Used in low-voltage power line carrier communication OFDM system simulation, using the compressed sensing method for channel estimation, using a number of different frequency conductivity, enhance the efficiency of the system can be discussed, simulation results is good.)