现代信号处理中谱估计在matlab中的使用，YwhZXsp参数调试通过可以使用，单径或多径瑞利衰落信道仿真，使用大量的有限元法求解偏微分方程，pwWYYMb条件结合PCA的尺度不变特征变换(SIFT)算法，基于人工神经网络的常用数字信号调制。- Modern signal processing used in the spectral estimation in matlab, YwhZXsp parameter　Debugging can be used, Single path or multipath Rayleigh fading channel simulation, Using a large number of finite element method to solve partial differential equations, pwWYYMb condition　Combined with PCA scale invariant feature transform (SIFT) algorithm, The commonly used digital signal modulation based on artificial neural network.