中文说明：
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，分别选取不同导频数目与LS算法比较，仿真效果良好。
English Description：
In the OFDM system simulation of low voltage power line carrier communication, the compressed sensing method is used to estimate the channel. Different pilot numbers are selected to compare with LS algorithm, and the simulation effect is good.