DAB数字广播linux运行的标准库,这是第一个标准库,运行必须的-DAB digital radio linux run the standard library

用西方最快的傅里叶变换包FFTW来求解二阶声波方程。伪谱法-Pseudo-spectral method for solving second-order acoustic wave equation, which used Western fastest Fourier Transform package FFTW