通过分析介绍自适应滤波器中经典算法LMS与RLS的异同，并且运用matlab进行仿真，使得初学者对于matlab在仿真过程的运用有更为直观的理解。并且对于自适应滤波有更清晰的认识。-By analyzing the introduction of classical adaptive filter algorithm LMS and RLS similarities and differences, and the use of matlab simulation, matlab for beginners makes use of the simulation process have a more intuitive understanding. And for adaptive filtering have a clearer understanding.