二阶格型滤波器可以较好的对信号进行噪声滤波，提高信噪比，误差较小，收敛速度较RSL快The two order lattice filter can filter the signal better, improve the SNR, the error is small, and the convergence speed is faster than that of RSL (2017-10-30, matlab, 1KB, 下载4次)